Subject: Re: [Healeys] Overdrive pressure or clutch slip Step 2!

From: Hank Leach via Healeys <[email-masked]>
Date: Fri, 26 Apr 2024 17:03:03 +0000 cvEWlG33Zhc3gGfOL4uPpl9KT5IC7mjmZLjxLHHHay6E1VPb3GjjcVr/HScRBTxZx0MgPZ3V65muk0eG/T9t5bbKHeHP5WpMeBJFkfKMnIeMH58ijcH7v8O4

----_NmP-f60fb03a8f6d3a3a-Part_1
Content-Transfer-Encoding: quoted-printable

<div>Ok the pressure gauge implies that the hydraulic system is in good =
condition and that will effectively produce overdrive when the cone clutch =
is pushed forward in the box. When OD is <strong>not required</strong> the =
solenoid is inactive and the 8 springs in the unit have to keep the cone =
clutch in the rearward or in direct drive position.</div>
<div>These are stout springs and normally are strong enough to engage and =
hold the clutch without slipping, overcoming the hydraulic influence-which =
should be draining at this point..However if the springs are misinstalled =
in the wrong position or not properly mounted on their tabs upon assembly =
or previously "coil bound" from that procedure or wear, they will not =
function to keep direct drive solid without slipping.</div>
<div>The clutch material should outlive all of us and is not normally, or =
easily, replaced. All you have to keep the car in direct drive are those 8 =
springs and their pressure.<br>-Hate to say it but if the re-assembly was =
defective, the gearbox needs to come out and OD removed and checked for =
correct spring fit-at that time I would replace the 8 springs (about $100 =
from Moss) as a routine repair. (photos from my article in AH Mag) =
Hank<br><br>From: "Bob Spidell" &lt;[email-masked]&gt; <br>To: =
&lt;[email-masked]&gt; <br>Sent: April 26, 2024 at 9:37 AM PDT =
<br>Subject: Re: [Healeys] Overdrive pressure or clutch slip Step 2! =
<br>Spitballing ...<br><br>I went through my BJ8's O/D a few years ago. The=
 car had 64K miles on it when I bought it (approx. 1984), and about 215K* =
miles on it when I did the overhaul. The O/D cone clutch was =
serviceable--and AFAIK didn't slip--and I reinstalled it. If new cone =
clutches were readily available I <em>might</em> have bought new, on =
principle, depending on cost, but all I could find was a re-manned one from=
 DWM. To me this implied they didn't often need replacement, whereas known =
wear items like the accumulator are offered by several vendors (I would =
have installed one with an O-ring if I'd known about it).<br><br>All this =
to say, unless the car has extremely high mileage and/or the O/D has been =
abused somehow I'd be surprised if the clutch is worn 'to the bone.' =
Obviously, slippage in the cone clutch would cause Simon's car's symptoms; =
if so, the problem will get progressively worse (and more consistent). I =
think one way to test an O/D clutch would be to really lug the car pulling =
an uphill grade in 4th-O/D, if the clutch is going to slip it would do it =
then (as would a worn engine clutch). There's also a (remote) possibility =
that, for some reason, O/D pressure fluctuates during driving.<br><br><br>*=
 Anyone else have this many or more known miles on a Healey?=
<br><br>bs<br><br><br><br></div>
<div class=3D"moz-cite-prefix">On =
4/26/2024 4:51 AM, Michael Salter wrote:</div>
<blockquote>
<div>
<div><span style=3D"font-family: 'times new roman',serif; font-size: 12.=
8px;">"What I can&rsquo;t do is understand the leap to the OD cone clutch?=
"</span></div>
<div><span style=3D"font-family: 'times new roman',serif; =
font-size: 12.8px;">&nbsp;</span></div>
<div><span style=3D"font-family: =
'times new roman',serif; font-size: 12.8px;">&nbsp;Fair question.=
</span></div>
<div><span style=3D"font-family: 'times new roman',serif; =
font-size: 12.8px;">Between the flywheel and the rear wheels there are only=
 2 places where "slippage" can occur these are the clutch and the =
overdrive's cone clutch.&nbsp;</span></div>
<div><span =
style=3D"font-family: 'times new roman',serif; font-size: 12.8px;">The =
gearbox, other than the cone clutch in the overdrive, is a go/no go =
arrangement, i.e. no "slippage".</span></div>
<div><span =
style=3D"font-family: 'times new roman',serif; font-size: 12.8px;">The rear=
 wheel splines, believe it or not, can also produce "slippage " if they are=
 in really bad condition but I presume that isn't the case here.=
</span></div>
<div><span style=3D"font-family: 'times new roman',serif; =
font-size: 12.8px;">&nbsp;</span></div>
<div><span style=3D"font-family: =
'times new roman',serif; font-size: 12.8px;">The test that you just =
completed resulted in no driveline slippage when the overdrive was disabled=
.&nbsp;</span></div>
<div><span style=3D"font-family: 'times new roman',=
serif; font-size: 12.8px;">You are reporting slippage when the overdrive =
operating system is enabled so it follows that further diagnosis of that is=
 required.</span></div>
<div><span style=3D"font-family: 'times new roman',=
serif; font-size: 12.8px;">&nbsp;</span></div>
<div><span =
style=3D"font-size: 12.8px;">Yes, your next step would be the same test =
drive, i.e. full engine torque on an uphill grade, to confirm that the =
slippage issue has returned now that the overdriveoperating valvehasbe =
re-installed.&nbsp;&nbsp;</span></div>
<div><span style=3D"font-size: 12.=
8px;">I would do this test drive BEFORE making any adjustments to the =
overdrive valve or solenoid in order to confirm that meerly installing the =
overdrive operating valve resulted in the slippage issue returning.=
&nbsp;</span></div>
<div><span style=3D"font-size: 12.8px;">Hope the =
weather improves, beautiful day here.</span></div>
<div><span =
style=3D"font-size: 12.8px;">M</span></div>
</div>
<br>
<div class=3D"gmail_quote">
<div class=3D"gmail_attr">On Fri., Apr. 26, =
2024, 7:24 a.m. Simon Lachlan, &lt;<a class=3D"moz-txt-link-freetext" =
href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt; wrote:</div>
<blockquote class=3D"gmail_quote" style=3D"margin: 0 0 0 .8ex; border-left:=
 1px #ccc solid; padding-left: 1ex;">
<div style=3D"word-wrap: =
break-word;">
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: =
'Times New Roman',serif;">Hi, Thanks for this.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">Not sure I understand fully. </span></p>
<p =
class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">Once I&rsquo;d finished the test drive with the OD operating valve =
out of the car, I returned the rod, ball, spring etc and put in the gauge =
rather than the nut. And got 500+ psi. </span></p>
<p =
class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">What I can&rsquo;t do is understand the leap to the OD cone clutch.=
 Not arguing&hellip;just saying no comprende. As I sat in the car, I was =
thinking that the function of the OD seems OK and that it&rsquo;s being =
interfered with by something in its circuitry&hellip;&hellip;relay, =
solenoid or throttle switch. That&rsquo;s probably wishful thinking as I =
really don&rsquo;t want to be swimming in those waters.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">I did, as a matter of =
course, clean out the tiny hole in the rod but didn&rsquo;t detect any =
blockage&hellip;.which doesn&rsquo;t mean much as something minute could =
have been inside and been washed away by the detergent/hot water then =
WD40&hellip;..</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">After someone&rsquo;s advice &ndash; some time back &ndash; =
I&rsquo;ve got another rod whose aperture has been drilled out to 1.5mm. =
This was &ldquo;to allow the OD to disengage faster&rdquo;. Don&rsquo;t =
recall if I tried it. Could that rod be any help here?</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">The ball seems to be =
sitting square on its seat and the tip of the rod, where the ball sits, is =
not worn or chipped.</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">Residual pressure&hellip;..=
 goes to 500+ when I switch OD ON and stays there until, engine and switch =
OFF, I energize the solenoid a few times whereupon it drops to zero.=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New =
Roman',serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">Another test drive(s) seems=
 called for. But the hood is off to enable access and the forecast is grim =
for the next week.</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">Very open to more suggestions. Thanks,</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">Simon</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:=
 'Times New Roman',serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">&nbsp;</span></p>
<div style=3D"border: none; border-top: solid =
#e1e1e1 1.0pt; padding: 3.0pt 0cm 0cm 0cm;">
<p class=3D"MsoNormal"><strong=
><span style=3D"font-size: 11.0pt; font-family: 'Calibri',=
sans-serif;">From:</span></strong><span style=3D"font-size: 11.0pt; =
font-family: 'Calibri',sans-serif;"> Michael Salter &lt;<a =
class=3D"moz-txt-link-freetext" href=3D"mailto:[email-masked]" =
target=3D"_blank" rel=3D"noopener">[email-masked]</a>&gt; =
<br><strong>Sent:</strong> Friday, April 26, 2024 12:14 =
AM<br><strong>To:</strong> Simon Lachlan &lt;<a class=3D"moz-txt-link-freet=
ext" href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt;<br><strong>Cc:</=
strong> Healeys &lt;<a class=3D"moz-txt-link-freetext" =
href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt;<br><strong>Subject:</strong=
> Re: Overdrive pressure or clutch slip Step 2!</span></p>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<p class=3D"MsoNormal">Okay, then =
it is confirmed that neither the clutch (on the flywheel) nor the overdrive=
 cone clutch (in it's normal drive condition) are producing the slippage.=
&nbsp;</p>
<div>
<p class=3D"MsoNormal">From this we can conclude that even=
 when the overdrive solenoid is <strong><u>not</u></strong> =
energized&nbsp;the slippage is occurring at the overdrive cone clutch and =
that for some reason hydraulic pressure is finding its way into the =
overdrive operating cylinders even when the overdrive operating valve is =
closed.</p>
</div>
<div>
<p class=3D"MsoNormal">This can be caused by =
leakage past operating the valve or residual pressure.</p>
</div>
<div>
<p class=3D"MsoNormal">The question of residual pressure can be resolved by=
 checking that the bleed hole in the bottom of the long overdrive valve =
push rod is not blocked.</p>
</div>
<div>
<p class=3D"MsoNormal">Whether or=
 not hydraulic pressure is leaking past the operating valve ball can be =
checked by ensuring that the ball is clearly on its seat when the operating=
 valve is <strong><u>not&nbsp;</u></strong>&nbsp;energized.</p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal">M</p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p=
<div>
<div>
<p class=3D"MsoNormal">On Thu., Apr. 25, 2024, 3:38 p.m. =
Simon Lachlan, &lt;<a class=3D"moz-txt-link-freetext" href=3D"mailto:simon.=
[email-masked]" target=3D"_blank" rel=3D"noopener">simon.=
[email-masked]</a>&gt; wrote:</p>
</div>
<blockquote style=3D"border: none; border-left: solid #cccccc 1.0pt; =
padding: 0cm 0cm 0cm 6.0pt; margin-left: 4.8pt; margin-right: 0cm;">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">Of course. Isn&rsquo;t that how I got the 520psi?</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">&nbsp;</span></p>
<div style=3D"border: none; border-top: solid =
#e1e1e1 1.0pt; padding: 3.0pt 0cm 0cm 0cm;">
<p class=3D"MsoNormal"><strong=
><span style=3D"font-size: 11.0pt; font-family: 'Calibri',=
sans-serif;">From:</span></strong><span style=3D"font-size: 11.0pt; =
font-family: 'Calibri',sans-serif;"> Michael Salter &lt;<a =
class=3D"moz-txt-link-freetext" href=3D"mailto:[email-masked]" =
target=3D"_blank" rel=3D"noopener">[email-masked]</a>&gt; =
<br><strong>Sent:</strong> Thursday, April 25, 2024 6:19 =
PM<br><strong>To:</strong> Simon Lachlan &lt;<a class=3D"moz-txt-link-freet=
ext" href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt;<br><strong>Cc:</=
strong> Healeys &lt;<a class=3D"moz-txt-link-freetext" =
href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt;<br><strong>Subject:</strong=
> Re: Overdrive pressure or clutch slip Step 2!</span></p>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<p class=3D"MsoNormal">Question&nbs=
p; ... when you got home and did the pressure test I presume that was AFTER=
 you had put the valve with the "top hat", ball, spring and valve rod cap =
and washer back into position?</p>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal">M</p>
<div>
<p class=3D"MsoNormal">&nbs=
p;</p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<div>
<p class=3D"MsoNormal">On Thu=
., Apr. 25, 2024, 12:29 p.m. Simon Lachlan, &lt;<a class=3D"moz-txt-link-fr=
eetext" href=3D"mailto:[email-masked]" target=3D"_blank"=
 rel=3D"noopener">[email-masked]</a>&gt; wrote:</p>
</div>
<blockquote style=3D"border: none; border-left: solid #cccccc 1.0pt;=
 padding: 0cm 0cm 0cm 6.0pt; margin: 5.0pt 0cm 5.0pt 4.8pt;">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">So, here is Michael&rsquo;s &ldquo;Step 1&rdquo; completed. (See =
his email, below).</span></p>
<ol>
<li class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">Removed the operating valve=
 and, just for luck, disconnected the two wires into =
3<sup>rd</sup>/4<sup>th</sup> switch. Took the car for a spin. Up/down =
longish/steepish hills, 10 miles on motorway. Various rpm&hellip;..no =
slippage at all.</span></li>
<li class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">Had a puncture&hellip;..=
nail in tyre. Rear RHS. Flat as a pancake at once. Nearly onto rim. Nail! I=
 imagine the inner tube is shredded and the tyre may be a write-off. =
(Usually are!). Anyhow, I bore you with this as I&rsquo;m convinced that =
I&rsquo;d never have got the wheel off without the little scissors jack =
which I carry to get the car up the first few inches until the Healey jack =
comes into play. Just a suggestion&hellip;&hellip;.</span></li>
<li class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">Got home and jacked car up to test pressure. Steady at 520psi which=
, I recall, is plenty. Stayed at 520 across rev range. Dropped very slowly =
once engine was off and dropped to zero as I engaged/disengaged OD a few =
times. Which is normal I think?</span></li>
<li class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">Solenoid makes a robust =
&ldquo;click&rdquo; when it should and engages the OD when activated.=
</span></li>
</ol>
<p class=3D"MsoNormal"><span style=3D"font-family: =
'Times New Roman',serif;">So what&rsquo;s a sensible &ldquo;Step 2&rdquo;??=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New =
Roman',serif;">I have been urged to check the setting of the Throttle =
Switch (TS). Assuming that the slippage returns (and why wouldn&rsquo;t it?=
), I&rsquo;ll short the TS out to see if that fixes it. If it does, =
I&rsquo;ll check the adjustment.</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">Suggestions would be more =
than welcome&hellip;&hellip;I do dread having to take that box out again. =
I&rsquo;ve got a very adequate ramp and a very strong volunteer(?) but, =
regardless of all that, it&rsquo;s still quite a task. And, like a few of =
us, I&rsquo;m not as young as I once was. I&rsquo;ve always enjoyed the =
lines from the manual which I reproduce, below. =EF=BF=BD=EF=BF=BD=EF=BF=BD=
Gently ease&rdquo;!?! </span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',=
serif;">Thanks, Simon</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif;">&nbsp;</span></p>
<div style=3D"border: none; border-top: solid #e1e1e1 1.0pt; padding: 3.0pt=
 0cm 0cm 0cm;">
<p class=3D"MsoNormal"><strong><span style=3D"font-size: 11=
.0pt; font-family: 'Calibri',sans-serif;">From:</span></strong><span =
style=3D"font-size: 11.0pt; font-family: 'Calibri',sans-serif;"> Michael =
Salter &lt;<a class=3D"moz-txt-link-freetext" href=3D"mailto:michaelsalter@=
gmail.com" target=3D"_blank" rel=3D"noopener">michaelsalter@gmail.=
com</a>&gt; <br><strong>Sent:</strong> Monday, April 22, 2024 3:21 =
PM<br><strong>To:</strong> Simon Lachlan &lt;<a class=3D"moz-txt-link-freet=
ext" href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt;<br><strong>Cc:</=
strong> Healeys &lt;<a class=3D"moz-txt-link-freetext" =
href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt;<br><strong>Subject:</strong=
> Re: [Healeys] Overdrive pressure or clutch slip</span></p>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<div>
<p class=3D"MsoNormal"><stron=
g><u>Correct diagnosis is 1/2 the repair!!</u></strong></p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<p class=3D"MsoNormal">First you =
need to confirm whether the clutch (on the flywheel) or the overdrive is =
causing the slippage.&nbsp;</p>
<div>
<p class=3D"MsoNormal">To do this you=
 ABSOLUTELY MUST disable the overdrive as a badly misadjuster overdrive =
operating valve can produce similar symptoms.&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal">To do this I would remove the overdrive operating =
valve completely. (There are other ways but this is absolutely definitive).=
</p>
</div>
<div>
<p class=3D"MsoNormal">Now drive the car up a long hill =
where you are amle to use full throttle at around 3000 RPM (maximum torque)=
 for a few seconds. If it is the clutch (on the flywheel) that is causing =
the slippage these operating conditions. Test this a few times to be sure.=
</p>
</div>
<div>
<p class=3D"MsoNormal">If there is no slippage we have =
confirmed that the overdrive clutch is at fault.</p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal">Step =
1 completed. Please report results.&nbsp;MS.</p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp=
;</p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<blockquote style=3D"border: none; border-left: solid #cccccc 1.0pt; =
padding: 0cm 0cm 0cm 6.0pt; margin: 5.0pt 0cm 5.0pt 4.8pt;">
<div>
<div>
<p class=3D"MsoNormal">On Mon., Apr. 22, 2024, 8:08 a.m. Simon Lachlan via =
Healeys, &lt;<a class=3D"moz-txt-link-freetext" href=3D"mailto:healeys@auto=
x.team.net" target=3D"_blank" rel=3D"noopener">[email-masked].=
net</a>&gt; wrote:</p>
</div>
<blockquote style=3D"border: none; =
border-left: solid #cccccc 1.0pt; padding: 0cm 0cm 0cm 6.0pt; margin: 5.0pt=
 0cm 5.0pt 4.8pt;">
<div>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">You may recall the very extended overdrive and clutch saga last =
year.</span> <span style=3D"font-family: 'Times New Roman',serif;">Long =
story short(ish)&hellip;</span></p>
<p><span style=3D"font-family: 'Times =
New Roman',serif;">OD was slipping in and out depending on oil temperature.=
</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">Correctly diagnosed pressure. Checked with gauge.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Attempted =
rebuild&hellip;going only so far as</span> <span style=3D"font-family: =
'Times New Roman',serif;">accumulator and related seals.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Stymied as could =
not get pump out. Turned out to have been &ldquo;fixed&rdquo; at some stage=
 with some form of &ldquo;chemical metal&rdquo; which was coming =
loose/apart.</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">Took it up to OD Spares who fixed it..new housing etcetc</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Why not a new =
clutch I thought? Sensible while you&rsquo;re in the area looking at a 30+ =
yr old item.</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">New clutch&hellip;no good. Noisy, wouldn&rsquo;t</span> <span =
style=3D"font-family: 'Times New Roman',serif;">engage/disengage/play at =
all.</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">Gearbox out again.</span></p>
<p><span style=3D"font-family: 'Times=
 New Roman',serif;">Refit clutch. Presumed I&rsquo;d made some =
beginner&rsquo;s mistake.</span></p>
<p><span style=3D"font-family: 'Times =
New Roman',serif;">Refit gearbox&hellip;no good. Same</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Can&rsquo;t recall=
 whether I tried again. Lost count and enthusiasm by now.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Turned out that =
the new clutch kit was defective. (Thanks Mirek) (Genuine B&amp;B from =
AHSpares).</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">New one did work.</span></p>
<p><span style=3D"font-family: 'Times =
New Roman',serif;">Saga over until yesterday.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Same sort of =
symptoms&hellip;..</span></p>
<p><span style=3D"font-family: 'Times New =
Roman',serif;">All&rsquo;s well for first 10 or so miles. Then the dreaded =
slippage(?) starts. But it&rsquo;s not quite the same. Reminds me more of a=
 slipping clutch. (But NO smell)</span></p>
<p><span style=3D"font-family: =
'Times New Roman',serif;">Symptoms continue if it&rsquo;s in or out of OD.=
</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">Symptoms reduce at speed.</span></p>
<p><span style=3D"font-family:=
 'Times New Roman',serif;">Yes, plenty of oil. Over the full mark. Looks =
very clean. Pretty sure it&rsquo;s 40wt</span> <span style=3D"font-family: =
'Times New Roman',serif;">non-detergent topped up with 30wt non-detergent. =
(Or vice-versa).</span> <span style=3D"font-family: 'Times New Roman',=
serif;">Am confident in state of the filter, magnets etc.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">No, I have not =
pressure tested it yet and yes, I dread restarting the whole bloody process=
 all over again. I&rsquo;m not sure I can face taking the box out again =
once, let alone multiple times.</span></p>
<p><span style=3D"font-family: =
'Times New Roman',serif;">What I want and experience tells me I&rsquo;m =
unlikely to get is a miracle cure!</span></p>
<p><span =
style=3D"font-family: 'Times New Roman',serif;">One initial =
question&hellip;..do OD relays either work or not work? ie, can the relay =
hover between on and off</span> <span style=3D"font-family: 'Times New =
Roman',serif;">which might lead to the OD coming in and out? I think that =
could happen if the switch is off but the unit still hasn&rsquo;t got the =
message to disengage from the bulkhead switch.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">And a =
supplementary&hellip;.how</span> <span style=3D"font-family: 'Times New =
Roman',serif;">do I bench test</span> <span style=3D"font-family: 'Times =
New Roman',serif;">the relay?</span></p>
<p><span style=3D"font-family: =
'Times New Roman',serif;">Simon</span></p>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
<br>
<pre class=3D"moz-quote-pre">______________________________________________=
_
team.net/donate.html">http://www.team.net/donate.html</a>

Archive: <a class=3D"moz-txt-link-freete=
xt" href=3D"http://www.team.net/pipermail/healeys">http://www.team.=
net/pipermail/healeys</a> <a class=3D"moz-txt-link-freetext" =
href=3D"http://autox.team.net/archive/healeys">http://autox.team.=
net/archive/healeys</a>

<a class=3D"moz-txt-link-abbreviated" =
href=3D"mailto:[email-masked]">[email-masked]</a>
<a class=3D"moz-txt-link-freetext" href=3D"http://autox.team.=
net/mailman/listinfo/healeys">http://autox.team.net/mailman/listinfo/healey=
s</a>

href=3D"http://autox.team.net/mailman/options/healeys/bspidell@comcast.=
net">http://autox.team.net/mailman/options/healeys/[email-masked]</a>

</pre>
</blockquote>
<div><br><br></div>
----_NmP-f60fb03a8f6d3a3a-Part_1
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="I-cone clutch.jpg"

----_NmP-f60fb03a8f6d3a3a-Part_1
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="II-mount GB to OD.jpg"

----_NmP-f60fb03a8f6d3a3a-Part_1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________

Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive/healeys

[email-masked]
http://autox.team.net/mailman/listinfo/healeys

----_NmP-f60fb03a8f6d3a3a-Part_1--

---

From: Hank Leach via Healeys <[email-masked]>
Date: Fri, 26 Apr 2024 17:15:20 +0000 6CAI3nq7EvIaLrxZlDiplrXGqLRSZKsXg3YwTMvwE1YWqlpcEzwWyRJLwuP1zDUc7VDVn32itqmzEJeMDZIvcLNUWD7bH/8r7zHfU06BiI50jSJjoJl82yRv tSToHzRAkXwguNgKwBR7Y2ESqeqGaZxyJub7YGOkTfc=

--===============5079719899198486060==
Content-Transfer-Encoding: quoted-printable

<div>I was the one who mentioned drilling out the small hole to =
<strong>1MM</strong>.&nbsp; This was suggested by a fellow who overhauls =
Triumph TR2 ODs-same A unit as Healey. In addition to cleaning the hole in =
the lower part of the rod I run a welding tip cleaning tool down the =
interior of the operating shaft to clean any debris and then blow out the =
tube to be sure it is totally clean-a chunk of debris could lodge in the =
tube and not release hydraulic pressure even if the hole look clear.</div>
<div>Replacing or reseating the ball on the top of the pressure tube should=
 be done by setting the ball on the tube and taping it with a small brass =
hammer to mate the two surfaces. Hank<br>-------------------- <br><br>From:=
 "Simon Lachlan via Healeys" &lt;[email-masked]&gt; <br>Reply-To: =
"Simon Lachlan" &lt;[email-masked]&gt; <br>To: "'Michael=
 Salter'" &lt;[email-masked]&gt; <br>Cc: "'Healeys'" =
&lt;[email-masked]&gt; <br>Sent: April 26, 2024 at 5:06 AM PDT =
<br>Subject: Re: [Healeys] Overdrive pressure or clutch slip Step 2! </div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif; mso-fareast-language: =
EN-US;">Hi, Thanks for this.</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif; mso-fareast-language: =
EN-US;">Not sure I understand fully. </span></p>
<p =
class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif; =
mso-fareast-language: EN-US;">Once I&rsquo;d finished the test drive with =
the OD operating valve out of the car, I returned the rod, ball, spring etc=
 and put in the gauge rather than the nut. And got 500+ psi. </span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif;=
 mso-fareast-language: EN-US;">What I can&rsquo;t do is understand the leap=
 to the OD cone clutch. Not arguing&hellip;just saying no comprende. As I =
sat in the car, I was thinking that the function of the OD seems OK and =
that it&rsquo;s being interfered with by something in its =
circuitry&hellip;&hellip;relay, solenoid or throttle switch. That&rsquo;s =
probably wishful thinking as I really don&rsquo;t want to be swimming in =
those waters.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:=
 'Times New Roman',serif; mso-fareast-language: EN-US;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif;=
 mso-fareast-language: EN-US;">I did, as a matter of course, clean out the =
tiny hole in the rod but didn&rsquo;t detect any blockage&hellip;.which =
doesn&rsquo;t mean much as something minute could have been inside and been=
 washed away by the detergent/hot water then WD40&hellip;..</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif;=
 mso-fareast-language: EN-US;">&nbsp;</span></p>
<p =
class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif; =
mso-fareast-language: EN-US;">After someone&rsquo;s advice &ndash; some =
time back &ndash; I&rsquo;ve got another rod whose aperture has been =
drilled out to 1.5mm. This was &ldquo;to allow the OD to disengage =
faster&rdquo;. Don&rsquo;t recall if I tried it. Could that rod be any help=
 here?</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times=
 New Roman',serif; mso-fareast-language: EN-US;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif;=
 mso-fareast-language: EN-US;">The ball seems to be sitting square on its =
seat and the tip of the rod, where the ball sits, is not worn or chipped.=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New =
Roman',serif; mso-fareast-language: EN-US;">Residual pressure&hellip;.. =
goes to 500+ when I switch OD ON and stays there until, engine and switch =
OFF, I energize the solenoid a few times whereupon it drops to zero.=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New =
Roman',serif; mso-fareast-language: EN-US;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif;=
 mso-fareast-language: EN-US;">Another test drive(s) seems called for. But =
the hood is off to enable access and the forecast is grim for the next week=
.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New =
Roman',serif; mso-fareast-language: EN-US;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif;=
 mso-fareast-language: EN-US;">Very open to more suggestions. Thanks,=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New =
Roman',serif; mso-fareast-language: EN-US;">Simon</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif;=
 mso-fareast-language: EN-US;">&nbsp;</span></p>
<p =
class=3D"MsoNormal"><span style=3D"font-family: 'Times New Roman',serif; =
mso-fareast-language: EN-US;">&nbsp;</span></p>
<p class=3D"MsoNormal"><spa=
n style=3D"font-family: 'Times New Roman',serif; mso-fareast-language: =
EN-US;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif; mso-fareast-language: =
EN-US;">&nbsp;</span></p>
<p class=3D"MsoNormal"><span =
style=3D"font-family: 'Times New Roman',serif; mso-fareast-language: =
EN-US;">&nbsp;</span></p>
<div style=3D"border: none; border-top: solid =
#E1E1E1 1.0pt; padding: 3.0pt 0cm 0cm 0cm;">
<p class=3D"MsoNormal"><strong=
sans-serif;">From:</span></strong><span style=3D"font-size: 11.0pt; =
font-family: 'Calibri',sans-serif;"> Michael Salter &lt;michaelsalter@gmail=
.com&gt; <br><strong>Sent:</strong> Friday, April 26, 2024 12:14 =
AM<br><strong>To:</strong> Simon Lachlan &lt;[email-masked].=
com&gt;<br><strong>Cc:</strong> Healeys &lt;[email-masked].=
net&gt;<br><strong>Subject:</strong> Re: Overdrive pressure or clutch slip =
Step 2!</span></p>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<p class=3D"MsoNormal">Okay, then it is confirmed that neither the clutch =
(on the flywheel) nor the overdrive cone clutch (in it's normal drive =
condition) are producing the slippage.&nbsp;</p>
<div>
<p class=3D"MsoNormal">From this we can conclude that even when the =
overdrive solenoid is <strong><u>not</u></strong> energized&nbsp;the =
slippage is occurring at the overdrive cone clutch and that for some reason=
 hydraulic pressure is finding its way into the overdrive operating =
cylinders even when the overdrive operating valve is closed.</p>
</div>
<div>
<p class=3D"MsoNormal">This can be caused by leakage past operating =
the valve or residual pressure.</p>
</div>
<div>
<p class=3D"MsoNormal">The=
 question of residual pressure can be resolved by checking that the bleed =
hole in the bottom of the long overdrive valve push rod is not blocked.</p>
</div>
<div>
<p class=3D"MsoNormal">Whether or not hydraulic pressure is =
leaking past the operating valve ball can be checked by ensuring that the =
ball is clearly on its seat when the operating valve is =
<strong><u>not&nbsp;</u></strong>&nbsp;energized.</p>
</div>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal">M</p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<div>
<p class=3D"MsoNormal">On Thu., Apr. 25, 2024, 3:38 p.m. Simon Lachlan, =
&lt;<a href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt; wrote:</p>
</div>
<blockquote style=3D"border: none; border-left: solid #CCCCCC 1.0pt;=
 padding: 0cm 0cm 0cm 6.0pt; margin-left: 4.8pt; margin-right: 0cm;">
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;"><span style=3D"font-family: 'Times New Roman'=
,serif;">Of course. Isn&rsquo;t that how I got the 520psi?</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;"><span style=3D"font-family: 'Times New Roman'=
,serif;">&nbsp;</span></p>
<div style=3D"border: none; border-top: solid =
#E1E1E1 1.0pt; padding: 3.0pt 0cm 0cm 0cm;">
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: =
auto;"><strong><span style=3D"font-size: 11.0pt; font-family: 'Calibri',=
sans-serif;">From:</span></strong><span style=3D"font-size: 11.0pt; =
font-family: 'Calibri',sans-serif;"> Michael Salter &lt;<a =
href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt; <br><strong>Sent:</strong>=
 Thursday, April 25, 2024 6:19 PM<br><strong>To:</strong> Simon Lachlan =
&lt;<a href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt;<br><strong>Cc:</=
strong> Healeys &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank" rel=3D"noopener">[email-masked].=
net</a>&gt;<br><strong>Subject:</strong> Re: Overdrive pressure or clutch =
slip Step 2!</span></p>
</div>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;">&nbsp;</p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">Question&nbsp; ... when you got home and did =
the pressure test I presume that was AFTER you had put the valve with the =
"top hat", ball, spring and valve rod cap and washer back into position?=
</p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">M</p>
<div>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">&nbsp;</p>
</div>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">&nbsp;</p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">On Thu., Apr. 25, 2024, 12:29 p.m. Simon =
Lachlan, &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank" rel=3D"noopener">[email-masked].=
com</a>&gt; wrote:</p>
</div>
<blockquote style=3D"border: none; =
border-left: solid #CCCCCC 1.0pt; padding: 0cm 0cm 0cm 6.0pt; margin: 5.0pt=
 0cm 50pt 4.8pt;">
<div>
<div>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span =
style=3D"font-family: 'Times New Roman',serif;">So, here is Michael&rsquo;s=
 &ldquo;Step 1&rdquo; completed. (See his email, below).</span></p>
<ol>
<li class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1;"><span =
style=3D"font-family: 'Times New Roman',serif;">Removed the operating valve=
 and, just for luck, disconnected the two wires into =
3<sup>rd</sup>/4<sup>th</sup> switch. Took the car for a spin. Up/down =
longish/steepish hills, 10 miles on motorway. Various rpm&hellip;..no =
slippage at all.</span></li>
<li class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-list: =
l0 level1 lfo1;"><span style=3D"font-family: 'Times New Roman',serif;">Had =
a puncture&hellip;..nail in tyre. Rear RHS. Flat as a pancake at once. =
Nearly onto rim. Nail! I imagine the inner tube is shredded and the tyre =
may be a write-off. (Usually are!). Anyhow, I bore you with this as =
I&rsquo;m convinced that I&rsquo;d never have got the wheel off without the=
 little scissors jack which I carry to get the car up the first few inches =
until the Healey jack comes into play. Just a suggestion&hellip;&hellip;.=
</span></li>
<li class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1;"><span =
style=3D"font-family: 'Times New Roman',serif;">Got home and jacked car up =
to test pressure. Steady at 520psi which, I recall, is plenty. Stayed at =
520 across rev range. Dropped very slowly once engine was off and dropped =
to zero as I engaged/disengaged OD a few times. Which is normal I think?=
</span></li>
<li class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto; mso-list: l0 level1 lfo1;"><span =
style=3D"font-family: 'Times New Roman',serif;">Solenoid makes a robust =
&ldquo;click&rdquo; when it should and engages the OD when activated.=
</span></li>
</ol>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: =
auto; mso-margin-bottom-alt: auto;"><span style=3D"font-family: 'Times New =
Roman',serif;">So what&rsquo;s a sensible &ldquo;Step 2&rdquo;??</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;"><span style=3D"font-family: 'Times New Roman'=
,serif;">I have been urged to check the setting of the Throttle Switch (TS)=
. Assuming that the slippage returns (and why wouldn&rsquo;t it?), =
I&rsquo;ll short the TS out to see if that fixes it. If it does, I&rsquo;ll=
 check the adjustment.</span></p>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span =
style=3D"font-family: 'Times New Roman',serif;">Suggestions would be more =
than welcome&hellip;&hellip;I do dread having to take that box out again. =
I&rsquo;ve got a very adequate ramp and a very strong volunteer(?) but, =
regardless of all that, it&rsquo;s still quite a task. And, like a few of =
us, I&rsquo;m not as young as I once was. I&rsquo;ve always enjoyed the =
lines from the manual which I reproduce, below. &ldquo;Gently ease&rdquo;!?=
! </span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">&nbsp;</p>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span =
style=3D"font-family: 'Times New Roman',serif;">&nbsp;</span></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;"><span style=3D"font-family: 'Times New Roman'=
,serif;">Thanks, Simon</span></p>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span =
style=3D"font-family: 'Times New Roman',serif;">&nbsp;</span></p>
<div style=3D"border: none; border-top: solid #E1E1E1 1.0pt; padding: 3.0pt=
 0cm 0cm 0cm;">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;"><strong><span style=3D"font-size: 11.0pt; =
font-family: 'Calibri',sans-serif;">From:</span></strong><span =
style=3D"font-size: 11.0pt; font-family: 'Calibri',sans-serif;"> Michael =
Salter &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt; <br><strong>Sent:</strong>=
 Monday, April 22, 2024 3:21 PM<br><strong>To:</strong> Simon Lachlan =
&lt;<a href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt;<br><strong>Cc:</=
strong> Healeys &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank" rel=3D"noopener">[email-masked].=
net</a>&gt;<br><strong>Subject:</strong> Re: [Healeys] Overdrive pressure =
or clutch slip</span></p>
</div>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;">&nbsp;</p>
<div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;"><strong><u>Correct diagnosis is 1/2 the =
repair!!</u></strong></p>
</div>
<div>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;">&nbsp;</p>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">First you need to confirm whether the clutch =
(on the flywheel) or the overdrive is causing the slippage.&nbsp;</p>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">To do this you ABSOLUTELY MUST disable the =
overdrive as a badly misadjuster overdrive operating valve can produce =
similar symptoms.&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;">To do this=
 I would remove the overdrive operating valve completely. (There are other =
ways but this is absolutely definitive).</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">Now drive the car up a long hill where you =
are amle to use full throttle at around 3000 RPM (maximum torque) for a few=
 seconds. If it is the clutch (on the flywheel) that is causing the =
slippage these operating conditions. Test this a few times to be sure.</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">If there is no slippage we have confirmed =
that the overdrive clutch is at fault.</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">Step 1 completed. Please report results.=
&nbsp;MS.</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-a=
lt: auto; mso-margin-bottom-alt: auto;">&nbsp;</p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">&nbsp;</p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt: auto; =
mso-margin-bottom-alt: auto;">&nbsp;</p>
<div>
<blockquote style=3D"border:=
 none; border-left: solid #CCCCCC 1.0pt; padding: 0cm 0cm 0cm 6.0pt; =
margin: 5.0pt 0cm 50pt 4.8pt;">
<div>
<div>
<p class=3D"MsoNormal" =
style=3D"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;">On Mon., =
Apr. 22, 2024, 8:08 a.m. Simon Lachlan via Healeys, &lt;<a =
href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt; wrote:</p>
</div>
<blockquote style=3D"border: none; border-left: solid #CCCCCC 1.0pt; =
padding: 0cm 0cm 0cm 6.0pt; margin: 5.0pt 0cm 50pt 4.8pt;">
<div>
<p><span style=3D"font-family: 'Times New Roman',serif;">You may recall the=
 very extended overdrive and clutch saga last year.</span> <span =
style=3D"font-family: 'Times New Roman',serif;">Long story =
short(ish)&hellip;</span></p>
<p><span style=3D"font-family: 'Times New =
Roman',serif;">OD was slipping in and out depending on oil temperature.=
</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">Correctly diagnosed pressure. Checked with gauge.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Attempted =
rebuild&hellip;going only so far as</span> <span style=3D"font-family: =
'Times New Roman',serif;">accumulator and related seals.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Stymied as could =
not get pump out. Turned out to have been &ldquo;fixed&rdquo; at some stage=
 with some form of &ldquo;chemical metal&rdquo; which was coming =
loose/apart.</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">Took it up to OD Spares who fixed it..new housing etcetc</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Why not a new =
clutch I thought? Sensible while you&rsquo;re in the area looking at a 30+ =
yr old item.</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">New clutch&hellip;no good. Noisy, wouldn&rsquo;t</span> <span =
style=3D"font-family: 'Times New Roman',serif;">engage/disengage/play at =
all.</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">Gearbox out again.</span></p>
<p><span style=3D"font-family: 'Times=
 New Roman',serif;">Refit clutch. Presumed I&rsquo;d made some =
beginner&rsquo;s mistake.</span></p>
<p><span style=3D"font-family: 'Times =
New Roman',serif;">Refit gearbox&hellip;no good. Same</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Can&rsquo;t recall=
 whether I tried again. Lost count and enthusiasm by now.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Turned out that =
the new clutch kit was defective. (Thanks Mirek) (Genuine B&amp;B from =
AHSpares).</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">New one did work.</span></p>
<p><span style=3D"font-family: 'Times =
New Roman',serif;">Saga over until yesterday.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">Same sort of =
symptoms&hellip;..</span></p>
<p><span style=3D"font-family: 'Times New =
Roman',serif;">All&rsquo;s well for first 10 or so miles. Then the dreaded =
slippage(?) starts. But it&rsquo;s not quite the same. Reminds me more of a=
 slipping clutch. (But NO smell)</span></p>
<p><span style=3D"font-family: =
'Times New Roman',serif;">Symptoms continue if it&rsquo;s in or out of OD.=
</span></p>
<p><span style=3D"font-family: 'Times New Roman',=
serif;">Symptoms reduce at speed.</span></p>
<p><span style=3D"font-family:=
 'Times New Roman',serif;">Yes, plenty of oil. Over the full mark. Looks =
very clean. Pretty sure it&rsquo;s 40wt</span> <span style=3D"font-family: =
'Times New Roman',serif;">non-detergent topped up with 30wt non-detergent. =
(Or vice-versa).</span> <span style=3D"font-family: 'Times New Roman',=
serif;">Am confident in state of the filter, magnets etc.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">No, I have not =
pressure tested it yet and yes, I dread restarting the whole bloody process=
 all over again. I&rsquo;m not sure I can face taking the box out again =
once, let alone multiple times.</span></p>
<p><span style=3D"font-family: =
'Times New Roman',serif;">What I want and experience tells me I&rsquo;m =
unlikely to get is a miracle cure!</span></p>
<p><span =
style=3D"font-family: 'Times New Roman',serif;">One initial =
question&hellip;..do OD relays either work or not work? ie, can the relay =
hover between on and off</span> <span style=3D"font-family: 'Times New =
Roman',serif;">which might lead to the OD coming in and out? I think that =
could happen if the switch is off but the unit still hasn&rsquo;t got the =
message to disengage from the bulkhead switch.</span></p>
<p><span style=3D"font-family: 'Times New Roman',serif;">And a =
supplementary&hellip;.how</span> <span style=3D"font-family: 'Times New =
Roman',serif;">do I bench test</span> <span style=3D"font-family: 'Times =
New Roman',serif;">the relay?</span></p>
<p><span style=3D"font-family: =
'Times New Roman',serif;">Simon</span></p>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
</div>
<div>&nbsp;</div>

--===============5079719899198486060==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============5079719899198486060==--

---

From: "[email-masked]" <[email-masked]>
Date: Fri, 26 Apr 2024 22:38:49 +0000

--===============9048675296128109280==
Content-Language: en-US
	boundary="_000_CH3PR20MB62652943157AC98499F392B4F0162CH3PR20MB6265namp_"

--_000_CH3PR20MB62652943157AC98499F392B4F0162CH3PR20MB6265namp_
Content-Transfer-Encoding: base64

--_000_CH3PR20MB62652943157AC98499F392B4F0162CH3PR20MB6265namp_
Content-Transfer-Encoding: base64

--_000_CH3PR20MB62652943157AC98499F392B4F0162CH3PR20MB6265namp_--

--===============9048675296128109280==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============9048675296128109280==--

---

From: Michael Salter <[email-masked]>
Date: Fri, 26 Apr 2024 22:20:19 -0400

--===============3986567479741419688==

--00000000000021b0b106170aaa36
Content-Transfer-Encoding: quoted-printable

Very interesting Jonas.
 I  have had 2 cars  non working "rebuilt" overdrives brought to me for
rectification and in both cases one or more long springs were installed in
the inner position. Neither would go into overdrive despite the usual "
flick" of the pressure gauge indicating that the valve had opened.
I can only imagine that the amount of wear of the linings makes the
difference.
M

On Fri., Apr. 26, 2024, 8:53 p.m. [email-masked], <[email-masked]>
wrote:

> Michael,
>
> I actually got the springs reversed on my last rebuild.
>
> OD engaged when I bench tested it, so I thought it was good.
>
> In the car, OD would engage and hold until a load was applied.
>
> It happily engaged with the car on jack stands and while driving downhill
> or on level ground, but the instant you tried to accelerate or encountere=
d
> a grade, out it would come.
>
> When I took it apart, you could plainly see the wear pattern and that the
> clutch surfaces were only engaging about 1/32".
>
> Jonas
>
>
>
> With all due respects Hank you have this backwards.
>
> .*However if the springs are misinstalled in the wrong position or not
> properly mounted on their tabs upon assembly or previously "coil bound"
> from that procedure or wear, they will not function to keep direct drive
> solid without slipping*.
>
> If the springs are installed incorrectly as in even one of them sitting o=
n
> top on the little posts, or even one long spring where a short is meant t=
o
> be, the unit will be solidly locked in "normal" i.e. non overdrive as the=
re
> never going to be enough hydraulic pressure to move a spring beyond "coil
> bound".
> Don't ask me how I know =F0=9F=98=B3
>
> M
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation  $12.75
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>

--00000000000021b0b106170aaa36
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">Very interesting Jonas.<div dir=3D"auto">=C2=A0I=C2=A0 ha=
ve had 2 cars=C2=A0 non working &quot;rebuilt&quot; overdrives brought to m=
e for rectification and in both cases one or more long springs were install=
ed in the inner position. Neither would go into overdrive despite the usual=
 &quot; flick&quot; of the pressure gauge indicating that the valve had ope=
ned.=C2=A0</div><div dir=3D"auto">I can only imagine that the amount of wea=
r of the linings makes the difference.=C2=A0</div><div dir=3D"auto">M</div>=
</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">=
On Fri., Apr. 26, 2024, 8:53 p.m. <a href=3D"mailto:[email-masked]">jpay=
[email-masked]</a>, &lt;<a href=3D"mailto:[email-masked]">[email-masked]=
et</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margi=
n:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div dir=3D"ltr">
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
Michael,</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
I actually got the springs reversed on my last rebuild.=C2=A0 =C2=A0</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
OD engaged when I bench tested it, so I thought it was good.</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
In the car, OD would engage and hold until a load was applied.</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
It happily engaged with the car on jack stands and while driving downhill o=
r on level ground, but the instant you tried to accelerate or encountered a=
 grade, out it would come.=C2=A0</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
When I took it apart, you could plainly see the wear pattern and that the c=
lutch surfaces were only engaging about 1/32&quot;.</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
=C2=A0</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
Jonas</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
With all due respects Hank you have this backwards.=C2=A0</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12.8px;color:rgb(0,0,0)">
.<i>However if the springs are misinstalled in the wrong position or not pr=
operly mounted on their tabs upon assembly or previously &quot;coil bound&q=
uot; from that procedure or wear, they will not function to keep direct dri=
ve solid without slipping</i>.</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
If the springs are installed incorrectly as in even one of them sitting on =
top on the little posts, or even one long spring where a short is meant to =
be, the unit will be solidly locked in &quot;normal&quot; i.e. non overdriv=
e as there never going to be enough hydraulic
 pressure to move a spring beyond &quot;coil bound&quot;.</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
Don&#39;t ask me how I know =F0=9F=98=B3</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
<br>
</div>
<div style=3D"direction:ltr;text-align:left;text-indent:0px;margin:0px;font=
-family:&quot;Segoe UI Web (West European)&quot;,&quot;Segoe UI&quot;,-appl=
e-system,BlinkMacSystemFont,Roboto,&quot;Helvetica Neue&quot;,sans-serif;fo=
nt-size:12pt;color:rgb(0,0,0)">
M</div>
</div>

_______________________________________________<br>
rer noreferrer" target=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noreferre=
r noreferrer" target=3D"_blank">http://www.team.net/pipermail/healeys</a> <=
a href=3D"http://autox.team.net/archive/healeys" rel=3D"noreferrer noreferr=
er" target=3D"_blank">http://autox.team.net/archive/healeys</a><br>
<br>
<a href=3D"mailto:[email-masked]" target=3D"_blank" rel=3D"noreferr=
er">[email-masked]</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys" rel=3D"noreferre=
r noreferrer" target=3D"_blank">http://autox.team.net/mailman/listinfo/heal=
eys</a><br>
<br>
s/[email-masked]" rel=3D"noreferrer noreferrer" target=3D"_blank">=
http://autox.team.net/mailman/options/healeys/[email-masked]</a><b=
r>
<br>
</blockquote></div>

--00000000000021b0b106170aaa36--

--===============3986567479741419688==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============3986567479741419688==--

---

From: Hank Leach via Healeys <[email-masked]>
Date: Sat, 27 Apr 2024 16:57:24 +0000 Rj1kV/QK6ZaRnQHwz1KpZsCZnjzW5jWjQ+UU0Sf+zTPo+XUMd7WdbBhFtJxxrypE/2bZeXG/Zm1tYGTyCjgq0ABNwfZtHPWeH1/eRYCrMqkb9wd2MIhLFuV9

----_NmP-9d48f1f5cc6f505a-Part_1
Content-Transfer-Encoding: quoted-printable

<div>My original comments indicate that what I stated was correct. There =
are two pressure systems in the overdrive: <strong>Spring pressure</strong>=
 which keeps the car in direct drive by pushing the cone clutch rearward to=
 the brake ring and <strong>hydraulic pressure</strong> that creates =
overdrive by building about 450lbs. of force to move the two operating =
pistons compressing the 8 springs and locking the cone clutch in the =
forward location of the brake ring. This is a move of approximately 1/16" =
in either direction.</div>
<div>&nbsp;</div>
<div>If either of these =
"paths" are interrupted and not allow the clutch to mate fully to the brake=
 ring, the function will not work solidly. It could be as simple as a =
broken or bound spring or a cracked or broken thrust washer or an =
overheated solenoid, but regardless&nbsp; the cone clutch must go fully =
home to work successfully. Jonas' example is similar to what Simon is =
experiencing.</div>
<div>&nbsp;</div>
<div>One could disconnect the =
solenoid, put a 3/16" drill in the OD lever and drive down the road (not =
backing up!) and see if the unit stays in overdrive steadily. If it slips, =
then the issue is hydraulic.This still requires disassembly, but a clue is =
given to the problem. If the electrics are disconnected and the lever held =
up all should be fine in direct drive or else the problem is with spring =
pressure (or perished linings) or hydraulics not bleeding down. Obviously,=
&nbsp; the test on the bench or with the wheels off the ground is not =
sufficient, as no load is created</div>
<div>&nbsp;</div>
<div>You may recall that sometime back Simon had an issue with someone =
"gluing" in the oil pump body. The proper assembly of these units cannot be=
 overstressed. As an exercise prior to tearing out the unit, I would drain =
and refill the gearboxes with 30W non-detergent fresh oil and examine what =
was found in the drain plug. Simon noted "after a few miles"-heat?) Regards=
, Hank
<div>&nbsp;</div>
</div>
<div><br>-------------------- <br><br>From:=
 &lt;[email-masked]&gt; <br>To: &lt;[email-masked]&gt; <br>Sent:=
 April 26, 2024 at 6:04 PM PDT <br>Subject: Re: [Healeys] Overdrive =
pressure or clutch slip Step 2! </div>
<div class=3D"elementToProof" =
style=3D"direction: ltr; text-align: left; text-indent: 0px; margin: 0px; =
font-family: 'Segoe UI Web (West European)', 'Segoe UI', -apple-system, =
BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 12pt; =
color: rgb(0, 0, 0);">Michael,</div>
<div class=3D"elementToProof" =
style=3D"direction: ltr; text-align: left; text-indent: 0px; margin: 0px; =
font-family: 'Segoe UI Web (West European)', 'Segoe UI', -apple-system, =
BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 12pt; =
color: rgb(0, 0, 0);">&nbsp;</div>
<div class=3D"elementToProof" =
style=3D"direction: ltr; text-align: left; text-indent: 0px; margin: 0px; =
font-family: 'Segoe UI Web (West European)', 'Segoe UI', -apple-system, =
BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 12pt; =
color: rgb(0, 0, 0);">I actually got the springs reversed on my last =
rebuild.&nbsp; &nbsp;</div>
<div class=3D"elementToProof" =
style=3D"direction: ltr; text-align: left; text-indent: 0px; margin: 0px; =
font-family: 'Segoe UI Web (West European)', 'Segoe UI', -apple-system, =
BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 12pt; =
color: rgb(0, 0, 0);">&nbsp;</div>
<div class=3D"elementToProof" =
style=3D"direction: ltr; text-align: left; text-indent: 0px; margin: 0px; =
font-family: 'Segoe UI Web (West European)', 'Segoe UI', -apple-system, =
BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: 12pt; =
color: rgb(0, 0, 0);">OD engaged when I bench tested it, so I thought it =
was good.</div>
<div class=3D"elementToProof" style=3D"direction: ltr; =
text-align: left; text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web=
 (West European)', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, =
'Helvetica Neue', sans-serif; font-size: 12pt; color: rgb(0, 0, =
0);">&nbsp;</div>
<div class=3D"elementToProof" style=3D"direction: ltr; =
text-align: left; text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web=
 (West European)', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, =
'Helvetica Neue', sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">In the=
 car, OD would engage and hold until a load was applied.</div>
<div class=3D"elementToProof" style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">&nbsp;</div>
<div class=3D"elementToProof" style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">It happily engaged with =
the car on jack stands and while driving downhill or on level ground, but =
the instant you tried to accelerate or encountered a grade, out it would =
come.&nbsp;</div>
<div class=3D"elementToProof" style=3D"direction: ltr; =
text-align: left; text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web=
 (West European)', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, =
'Helvetica Neue', sans-serif; font-size: 12pt; color: rgb(0, 0, =
0);">&nbsp;</div>
<div class=3D"elementToProof" style=3D"direction: ltr; =
text-align: left; text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web=
 (West European)', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, =
'Helvetica Neue', sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">When I=
 took it apart, you could plainly see the wear pattern and that the clutch =
surfaces were only engaging about 1/32".</div>
<div =
class=3D"elementToProof" style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">&nbsp;</div>
<div class=3D"elementToProof" style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Jonas</div>
<div class=3D"elementToProof" style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">&nbsp;</div>
<div class=3D"elementToProof" style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">&nbsp;</div>
<div class=3D"elementToProof" style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">&nbsp;</div>
<div class=3D"elementToProof" style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">With all due respects =
Hank you have this backwards.&nbsp;</div>
<div style=3D"direction: ltr; =
text-align: left; text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web=
 (West European)', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, =
'Helvetica Neue', sans-serif; font-size: 12pt; color: rgb(0, 0, =
0);">&nbsp;</div>
<div style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12.8px; color: rgb(0, 0, 0);">.<em>However if the =
springs are misinstalled in the wrong position or not properly mounted on =
their tabs upon assembly or previously "coil bound" from that procedure or =
wear, they will not function to keep direct drive solid without =
slipping</em>.</div>
<div style=3D"direction: ltr; text-align: left; =
text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web (West European)',=
 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', =
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">&nbsp;</div>
<div style=3D"direction: ltr; text-align: left; text-indent: 0px; margin: =
0px; font-family: 'Segoe UI Web (West European)', 'Segoe UI', -apple-system=
, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: =
12pt; color: rgb(0, 0, 0);">If the springs are installed incorrectly as in =
even one of them sitting on top on the little posts, or even one long =
spring where a short is meant to be, the unit will be solidly locked in =
"normal" i.e. non overdrive as there never going to be enough hydraulic =
pressure to move a spring beyond "coil bound".</div>
<div style=3D"direction: ltr; text-align: left; text-indent: 0px; margin: =
0px; font-family: 'Segoe UI Web (West European)', 'Segoe UI', -apple-system=
, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: =
12pt; color: rgb(0, 0, 0);">Don't ask me how I know =F0=9F=98=B3</div>
<div style=3D"direction: ltr; text-align: left; text-indent: 0px; margin: =
0px; font-family: 'Segoe UI Web (West European)', 'Segoe UI', -apple-system=
, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif; font-size: =
12pt; color: rgb(0, 0, 0);">&nbsp;</div>
<div style=3D"direction: ltr; =
text-align: left; text-indent: 0px; margin: 0px; font-family: 'Segoe UI Web=
 (West European)', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, =
'Helvetica Neue', sans-serif; font-size: 12pt; color: rgb(0, 0, =
0);">M</div>
<div>&nbsp;</div>
----_NmP-9d48f1f5cc6f505a-Part_1
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="H-clutch lining.jpg"

----_NmP-9d48f1f5cc6f505a-Part_1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

----_NmP-9d48f1f5cc6f505a-Part_1--