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--001a11472facfc92b30540b61178
They only stop leaking when they are out of oil. So most likely related to
the failure.
Ira Erbs
1959 100-6
MKI engine and disc brakes
Portland,OR
On Nov 6, 2016 9:38 PM, "Jean Caron" <
vintage_roadster_restoration@hotmail.com> wrote:
> I have used sealant as well, just rebuilt an overdrive last week and used
> sealant, will it make a difference, not so sure about that, but I have long
> accepted the fact that Austin-Healey leak oil and I don't worry about it.
> Several years ago, a Club member proudly told me that his Healey no longer
> had any oil leaks and within a week the engine blew, was it related, not
> sure but what a coincidence.
>
>
> Jean
>
>
> ------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of David
> Porter <frogeye@porterscustom.com>
> *Sent:* November 7, 2016 12:45 AM
> *To:* Michael Salter; Austin Healeys List
> *Cc:* Healey List
> *Subject:* Re: [Healeys] Overdrive Question
>
>
> I concur, but have on occasion used sealant. It's a PITA to get on both
> sides properly during assembly.. There can be some dissimilar metal
> corrosion after all this time passage.
>
> DaveP
>
>
>
> On 11/6/2016 2:22 PM, Michael Salter wrote:
>
> Hi Andy,
> The thing is that there is no mention of the use of any type of sealant on
> the clutch ring in any of the literature that I have on the overdrive
> units...
> Hard to imagine but I have never seen evidence of any on the virgin units
> that I have disassembled... I think it was just a dry joint!!!
> Michael S
> BN1 #174
>
> On Sun, Nov 6, 2016 at 4:06 PM, Austin Healeys List <
> austinhealeyslist@gmail.com> wrote:
>
>> HI Michael
>>
>> It has nothing to do with the studs stretching and everything to do
>> with the aluminium housing flexing. It only needs to move a tiny bit
>> to unstick the sealant and after that there is no longer anything
>> stopping the oil weeping out. I'll run an FEA simulation on it some
>> time to show just how flexible the ali case is.
>>
>> btw, Yamabond, Kawabond, Hondabond, Suzukibond etc are all OEM names
>> for ThreeBond sealant.
>>
>> Andy.
>>
>>
>> On 11/7/16, Michael Salter <michaelsalter@gmail.com> wrote:
>> > Out of interest I just did the calculations for the change in length of
>> the
>> > studs in this case.
>> > Assuming:
>> > 4 x 5/16" dia studs with an effective diameter of 0.25" each (thread
>> root)
>> > and a length of 3" (in actual fact only the bottom pair are that long).
>> > 0.8 G of braking (which is probably way higher than our tires can
>> generate)
>> > Young's Modulus of 30,000,000 @ 100 degrees F
>> > 700 lbs of engine and gearbox (which is probably very high considering
>> that
>> > the the mounts are all rubber and the main engine mounts would absorb a
>> > fair bit as well)
>> > Works out to about 0.00028" of stretch.
>> > That's less than 10% of a human hair and only during panic braking if
>> the
>> > tie rod is the only thing resisting the load.
>> > I think that there must be other contributing factors...
>> > Michael S
>> > BN1 #174
>> >
>> > On Sun, Nov 6, 2016 at 11:19 AM, Bluehealey <bluehealey@gmail.com>
>> wrote:
>> >
>>
>
>
>
> --
> *If you can't fix it with a hammer, you've got an electrical problem.*
>
>
>
> _______________________________________________
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>
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>
>
> --
> Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM 87107
> 505-352-1378 Go HERE: my world www.porterbikes.com/
>
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation $12.75
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>
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> options/healeys/eyera3000@gmail.com
>
>
>
--001a11472facfc92b30540b61178
Content-Transfer-Encoding: quoted-printable
<p dir=3D"ltr">They only stop leaking when they are out of oil. So most lik=
ely related to the failure.</p>
<p dir=3D"ltr">Ira Erbs<br>
1959 100-6<br>
MKI engine and disc brakes<br>
Portland,OR</p>
<div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Nov 6, 2016 9:=
38 PM, "Jean Caron" <<a href=3D"mailto:vintage_roadster_restor=
ation@hotmail.com">vintage_roadster_restoration@hotmail.com</a>> wrote:<=
br type=3D"attribution"><blockquote class=3D"gmail_quote" style=3D"margin:0=
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir=3D"ltr">
<div id=3D"m_2798980074683027735divtagdefaultwrapper" style=3D"font-size:12=
pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif" dir=3D"ltr=
">
<p>I have used sealant as well, just rebuilt an overdrive last week and use=
d sealant, will it make a difference, not so sure about that, but I have lo=
ng accepted the fact that Austin-Healey leak oil and I don't worry abou=
t it. Several years ago, a Club member
proudly told me that his Healey no longer had any oil leaks and within a w=
eek the engine blew, was it related, not sure but what a coincidence.</p>
<p><br>
</p>
<p>Jean<br>
</p>
<br>
<br>
<div style=3D"color:rgb(0,0,0)">
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_2798980074683027735divRplyFwdMsg" dir=3D"ltr"><font style=3D"f=
ont-size:11pt" color=3D"#000000" face=3D"Calibri, sans-serif"><b>From:</b> =
Healeys <<a href=3D"mailto:healeys-bounces@autox.team.net"; target=3D"_bl=
ank">healeys-bounces@autox.team.<wbr>net</a>> on behalf of David Porter =
<<a href=3D"mailto:frogeye@porterscustom.com"; target=3D"_blank">frogeye@=
porterscustom.com</a>><br>
<b>Sent:</b> November 7, 2016 12:45 AM<br>
<b>To:</b> Michael Salter; Austin Healeys List<br>
<b>Cc:</b> Healey List<br>
<b>Subject:</b> Re: [Healeys] Overdrive Question</font>
<div>=C2=A0</div>
</div>
<div>
<p>I concur, but have on occasion used sealant. It's a PITA to get on b=
oth sides properly during assembly.. There can be some dissimilar metal cor=
rosion after all this time passage.</p>
<p>DaveP</p>
<p><br>
</p>
<br>
<div class=3D"m_2798980074683027735moz-cite-prefix">On 11/6/2016 2:22 PM, M=
ichael Salter wrote:<br>
</div>
<blockquote type=3D"cite">
<div dir=3D"ltr">
<div class=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;=
font-size:small">
Hi Andy,<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;=
font-size:small">
The thing is that there is no mention of the use of any type of sealant on =
the clutch ring in any of the literature that I have on the overdrive units=
...
<br>
Hard to imagine but I have never seen evidence of any on the virgin units t=
hat I have disassembled... I think it was just a dry joint!!!<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;=
font-size:small">
Michael S<br>
</div>
<div class=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;=
font-size:small">
BN1 #174<br>
</div>
</div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Sun, Nov 6, 2016 at 4:06 PM, Austin Healeys L=
ist <span dir=3D"ltr">
<<a href=3D"mailto:austinhealeyslist@gmail.com"; target=3D"_blank">austin=
healeyslist@gmail.com</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
HI Michael<br>
<br>
It has nothing to do with the studs stretching and everything to do<br>
with the aluminium housing flexing. It only needs to move a tiny bit<br>
to unstick the sealant and after that there is no longer anything<br>
stopping the oil weeping out. I'll run an FEA simulation on it some<br>
time to show just how flexible the ali case is.<br>
<br>
btw, Yamabond, Kawabond, Hondabond, Suzukibond etc are all OEM names<br>
for ThreeBond sealant.<br>
<br>
Andy.<br>
<div class=3D"m_2798980074683027735HOEnZb">
<div class=3D"m_2798980074683027735h5"><br>
<br>
On 11/7/16, Michael Salter <<a href=3D"mailto:michaelsalter@gmail.com"; t=
arget=3D"_blank">michaelsalter@gmail.com</a>> wrote:<br>
> Out of interest I just did the calculations for the change in length o=
f the<br>
> studs in this case.<br>
> Assuming:<br>
> 4 x 5/16" dia studs with an effective diameter of 0.25" each=
(thread root)<br>
> and a length of 3" (in actual fact only the bottom pair are that =
long).<br>
> 0.8 G of braking (which is probably way higher than our tires can gene=
rate)<br>
> Young's Modulus of 30,000,000 @ 100 degrees F<br>
> 700 lbs of engine and gearbox (which is probably very high considering=
that<br>
> the the mounts are all rubber and the main engine mounts would absorb =
a<br>
> fair bit as well)<br>
> Works out to about 0.00028" of stretch.<br>
> That's less than 10% of a human hair and only during panic braking=
if the<br>
> tie rod is the only thing resisting the load.<br>
> I think that there must be other contributing factors...<br>
> Michael S<br>
> BN1 #174<br>
><br>
> On Sun, Nov 6, 2016 at 11:19 AM, Bluehealey <<a href=3D"mailto:blue=
healey@gmail.com" target=3D"_blank">bluehealey@gmail.com</a>> wrote:<br>
><br>
</div>
</div>
</blockquote>
</div>
<br>
<br clear=3D"all">
<br>
-- <br>
<div class=3D"m_2798980074683027735gmail_signature">
<div dir=3D"ltr">
<div>
<div dir=3D"ltr"><i><font size=3D"2"><span style=3D"color:black">If you can=
't fix it with a hammer, you've got an electrical problem.</span></=
font></i><br>
<br>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset class=3D"m_2798980074683027735mimeAttachmentHeader"></fieldset> <=
br>
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</pre>
</blockquote>
<br>
<div class=3D"m_2798980074683027735moz-signature">-- <br>
Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM 87107 <=
a href=3D"tel:505-352-1378" value=3D"+15053521378" target=3D"_blank">505-35=
2-1378</a> Go HERE: my world
<a class=3D"m_2798980074683027735moz-txt-link-abbreviated" href=3D"http://w=
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