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Thanks to all for your help.=C2=A0 Using the pictures I received, I was fi=
nally able to figure out the problem.=C2=A0 I had the pump body assembled b=
ackwards.=C2=A0 I turned it around and reassembled everything.=C2=A0 Sure e=
nough, the overdrive now works.=C2=A0 Thanks again.
Jack
On Friday, January 18, 2019, 11:52:54 AM EST, PaulHunt73 <paulhunt73@vi=
rginmedia.com> wrote: =20
=20
Hi Jack,=C2=A0An incorrectly assembled relief valve or one with missing pa=
rts could certainly cause non-operation of the OD, as it allows pressure to=
build to a given point in order to move the sliding parts.=C2=A0 If pressu=
re=C2=A0can't build the OD won't engage.=C2=A0 I can't see any shims in you=
r picture, but usually they only affect the sharpness of engagement.=C2=A0 =
However in your photo the valve body=C2=A0with filter, next to the hex=C2=
=A0plug,=C2=A0is the wrong way round compared to the two photos in my link.=
=C2=A0As far as gear oil goes it was standard for the V8 and hasn't caused =
me any problems in 120k.=C2=A0Paul.=C2=A0=C2=A0
----- Original Message ----- From: Jack Wheeler To: PaulHunt73 Cc: Mgli=
st Sent: Friday, January 18, 2019 4:08 PM Subject: [Mgs] Overdrive Diagram=
- Update 2.0=20
Thanks, Paul.=C2=A0 That is helpful.=C2=A0 The problem still exists howe=
ver, in that the diagram of the relief valve in the manual does not agree w=
ith the parts in my overdrive unit.=C2=A0 The picture you attached is like =
mine.=C2=A0 My question is, if the relief valve were installed improperly, =
would that cause the overdrive not to engage?=C2=A0 Yesterday, I reversed t=
he plunger to get it in the correct alignment and reinstalled the entire as=
sembly.=C2=A0 I drove it this morning, and it didn't seem to make any diffe=
rence - the overdrive still did not engage.=C2=A0 Any additional thoughts?=
=C2=A0 Thanks.=20
Jack
=20
On Friday, January 18, 2019, 5:21:06 AM EST, PaulHunt73 <paulhunt73@virg=
inmedia.com> wrote: =20
=20
I've just noticed I had a photo attached to this, didn't=C2=A0think the=
list handled attachments. =C2=A0 Anyway, that's not the oil pump but the r=
elief valve assembly beside the solenoid plate that can be accessed directl=
y.=C2=A0 The oil pump is 'under' the circular plug with two holes in the su=
mp. =C2=A0 I've been into the relief valve on both my cars, and there are v=
arious configurations as shown here http://www.mgb-stuff.org.uk/goc.htm#3 =
=C2=A0 I've not been into the pump but I'm attaching a scan of the exploded=
parts from the Laycock manual, Jack at least should get that. =C2=A0 PaulH=
. =C2=A0=20
----- Original Message ----- From: Jack Wheeler via Mgs To: Mglist Sent=
: Thursday, January 17, 2019 8:20 PM Subject: [Mgs] Overdrive Diagram - Upd=
ate=20
OK, attached is a picture of the components as they were installed in my =
oil pump.=C2=A0 I have removed it, and after carefully examining the assemb=
ly, I think I can see why it is not working.=C2=A0 I had the plunger (the i=
tem in the middle in the attached picture) installed backwards.=C2=A0 I had=
the long end of the plunger going down into the pump body, so of course, t=
he plunger riding on the cam would not even contact the plunger going into =
the body.=C2=A0 When I turned the plunger around, the 2 plungers now come i=
nto contact with each other, thus allowing the pump to work.=20
I'd still be interested in any comments you have (other than "what a s***h=
ead").=C2=A0 Also, I'd like to get an exploded diagram of the unit in my ca=
r.=C2=A0 Thanks for any help you can give me.=20
Jack
=20
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<html><head></head><body><div class="ydpbfec1ce6yahoo-style-wrap"
style="font-family:Helvetica Neue, Helvetica, Arial,
sans-serif;font-size:13px;"><div></div>
<div>Thanks to all for your help. Using the pictures I received,
I was finally able to figure out the problem. I had the pump body
assembled backwards. I turned it around and reassembled everything.
Sure enough, the overdrive now works. Thanks
again.</div><div><br></div><div>Jack<br></div><div><br></div>
</div><div id="ydpb9f0a781yahoo_quoted_8370196508"
class="ydpb9f0a781yahoo_quoted">
<div style="font-family:'Helvetica Neue', Helvetica, Arial,
sans-serif;font-size:13px;color:#26282a;">
<div>
On Friday, January 18, 2019, 11:52:54 AM EST, PaulHunt73
<paulhunt73@virginmedia.com> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id="ydpb9f0a781yiv9380117422"><div>
<div><font size="2">Hi Jack,</font></div>
<div><font size="2"></font> </div>
<div><font size="2">An incorrectly assembled relief valve or one with missing
parts could certainly cause non-operation of the OD, as it allows pressure to
build to a given point in order to move the sliding parts. If
pressure can't build the OD won't engage. I can't see any shims in
your picture, but usually they only affect the sharpness of engagement.
However in your photo the valve body with filter, next to the
hex plug, is the wrong way round compared to the two photos in my
link.</font></div>
<div><font size="2"></font> </div>
<div><font size="2">As far as gear oil goes it was standard for the V8 and
hasn't
caused me any problems in 120k.</font></div>
<div><font size="2"></font> </div>
<div><font size="2">Paul.</font></div>
<div><font size="2"></font> </div>
<div><font size="2"></font> </div>
<blockquote dir="ltr" style="BORDER-LEFT:#000000 2px
solid;PADDING-LEFT:5px;PADDING-RIGHT:0px;MARGIN-LEFT:5px;MARGIN-RIGHT:0px;">
<div class="ydpb9f0a781yiv9380117422yqt5067720670"
id="ydpb9f0a781yiv9380117422yqt21350"><div style="font-style: normal;
font-weight: normal; font-stretch: normal; font-size: 10pt; line-height:
normal; font-family: arial; font-size-adjust: none;">----- Original Message
----- </div>
<div style="font-style: normal; font-weight: normal; font-stretch: normal;
font-size: 10pt; line-height: normal; font-family: arial; font-size-adjust:
none; background-color: rgb(228, 228, 228); background-repeat: repeat;
background-attachment: scroll; background-image: none; background-size: auto
auto;"><b>From:</b>
<a shape="rect" title="jwheeler1947@yahoo.com"
href="mailto:jwheeler1947@yahoo.com"; rel="nofollow" target="_blank">Jack
Wheeler</a> </div>
<div style="font-style: normal; font-weight: normal; font-stretch: normal;
font-size: 10pt; line-height: normal; font-family: arial; font-size-adjust:
none;"><b>To:</b> <a shape="rect" title="paulhunt73@virginmedia.com"
href="mailto:paulhunt73@virginmedia.com"; rel="nofollow"
target="_blank">PaulHunt73</a> </div>
<div style="font-style: normal; font-weight: normal; font-stretch: normal;
font-size: 10pt; line-height: normal; font-family: arial; font-size-adjust:
none;"><b>Cc:</b> <a shape="rect" title="mgs@autox.team.net"
href="mailto:mgs@autox.team.net"; rel="nofollow" target="_blank">Mglist</a>
</div>
<div style="font-style: normal; font-weight: normal; font-stretch: normal;
font-size: 10pt; line-height: normal; font-family: arial; font-size-adjust:
none;"><b>Sent:</b> Friday, January 18, 2019 4:08
PM</div>
<div style="font-style: normal; font-weight: normal; font-stretch: normal;
font-size: 10pt; line-height: normal; font-family: arial; font-size-adjust:
none;"><b>Subject:</b> [Mgs] Overdrive Diagram - Update
2.0</div>
<div><br clear="none"></div>
<div class="ydpb9f0a781yiv9380117422ydp36d9a469yahoo-style-wrap"
style="FONT-FAMILY:Helvetica Neue, Helvetica, Arial,
sans-serif;FONT-SIZE:13px;">
<div></div>
<div>Thanks, Paul. That is helpful. The problem still exists
however, in that the diagram of the relief valve in the manual does not agree
with the parts in my overdrive unit. The picture you attached is like
mine. My question is, if the relief valve were installed improperly,
would that cause the overdrive not to engage? Yesterday, I reversed the
plunger to get it in the correct alignment and reinstalled the entire
assembly. I drove it this morning, and it didn't seem to make any
difference - the overdrive still did not engage. Any additional
thoughts? Thanks.</div>
<div><br clear="none"></div>
<div>Jack<br clear="none"></div>
<div><br clear="none"></div></div>
<div class="ydpb9f0a781yiv9380117422ydpf5576ecbyahoo_quoted"
id="ydpb9f0a781yiv9380117422ydpf5576ecbyahoo_quoted_8170212195">
<div style="FONT-FAMILY:'Helvetica Neue', Helvetica, Arial,
sans-serif;COLOR:#26282a;FONT-SIZE:13px;">
<div>On Friday, January 18, 2019, 5:21:06 AM EST, PaulHunt73
<paulhunt73@virginmedia.com> wrote: </div>
<div><br clear="none"></div>
<div><br clear="none"></div>
<div>
<div id="ydpb9f0a781yiv9380117422ydpf5576ecbyiv5976080571">
<div>
<div><font size="2">I've just noticed I had a photo attached to this,
didn't think the list handled attachments.</font></div>
<div><font size="2"></font> </div>
<div><font size="2">Anyway, that's not the oil pump but the relief valve
assembly beside the solenoid plate that can be accessed directly. The
oil pump is 'under' the circular plug with two holes in the sump.</font></div>
<div><font size="2"></font> </div>
<div><font size="2">I've been into the relief valve on both my cars, and
there
are various configurations as shown here <a shape="rect"
href="http://www.mgb-stuff.org.uk/goc.htm#3"; rel="nofollow"
target="_blank">http://www.mgb-stuff.org.uk/goc.htm#3</a></font></div>
<div><font size="2"></font> </div>
<div><font size="2">I've not been into the pump but </font><font size="2">I'm
attaching a scan of the exploded parts from the Laycock manual, Jack at least
should get that.</font></div>
<div><font size="2"></font> </div>
<div><font size="2">PaulH.</font></div>
<div><font size="2"></font> </div>
<blockquote style="BORDER-LEFT:#000000 2px
solid;PADDING-LEFT:5px;PADDING-RIGHT:0px;MARGIN-LEFT:5px;MARGIN-RIGHT:0px;">
<div
style="LINE-HEIGHT:normal;FONT-STYLE:normal;FONT-FAMILY:arial;FONT-SIZE:10pt;FONT-WEIGHT:normal;font-stretch:normal;font-size-adjust:none;">-----
Original Message ----- </div>
<div
style="BACKGROUND-IMAGE:none;LINE-HEIGHT:normal;BACKGROUND-COLOR:rgb(228,228,228);FONT-STYLE:normal;BACKGROUND-ATTACHMENT:scroll;BACKGROUND-REPEAT:repeat;FONT-FAMILY:arial;FONT-SIZE:10pt;FONT-WEIGHT:normal;font-stretch:normal;font-size-adjust:none;background-size:auto
auto;"><b>From:</b>
<a shape="rect" title="mgs@autox.team.net" href="mailto:mgs@autox.team.net";
rel="nofollow" target="_blank">Jack Wheeler via Mgs</a> </div>
<div
style="LINE-HEIGHT:normal;FONT-STYLE:normal;FONT-FAMILY:arial;FONT-SIZE:10pt;FONT-WEIGHT:normal;font-stretch:normal;font-size-adjust:none;"><b>To:</b>
<a shape="rect" title="mgs@autox.team.net" href="mailto:mgs@autox.team.net";
rel="nofollow" target="_blank">Mglist</a> </div>
<div
style="LINE-HEIGHT:normal;FONT-STYLE:normal;FONT-FAMILY:arial;FONT-SIZE:10pt;FONT-WEIGHT:normal;font-stretch:normal;font-size-adjust:none;"><b>Sent:</b>
Thursday, January 17, 2019 8:20 PM</div>
<div
style="LINE-HEIGHT:normal;FONT-STYLE:normal;FONT-FAMILY:arial;FONT-SIZE:10pt;FONT-WEIGHT:normal;font-stretch:normal;font-size-adjust:none;"><b>Subject:</b>
[Mgs] Overdrive Diagram - Update</div>
<div><br clear="none"></div>
<div></div>
<div>OK, attached is a picture of the components as they were installed in
my oil pump. I have removed it, and after carefully examining the
assembly, I think I can see why it is not working. I had the plunger
(the item in the middle in the attached picture) installed backwards.
I had the long end of the plunger going down into the pump body, so of
course, the plunger riding on the cam would not even contact the plunger
going into the body. When I turned the plunger around, the 2 plungers
now come into contact with each other, thus allowing the pump to work.</div>
<div><br clear="none"></div>
<div>I'd still be interested in any comments you have (other than "what a
s***head"). Also, I'd like to get an exploded diagram of the unit in
my car. Thanks for any help you can give me.</div>
<div><br clear="none"></div>
<div>Jack<br
clear="none"></div></blockquote></div></div></div></div></div></div></blockquote></div></div></div>
</div>
</div></body></html>
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