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<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></div><div>Jack<br></div><div><br></div>
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On Friday, January 18, 2019, 5:21:06 AM EST, PaulHunt73 <paulhunt73@virginmedia.com> wrote:
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<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>
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<div><font size="2">I've been into the relief valve on both my cars, and there are
various configurations as shown here <a 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>
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<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>
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<div><font size="2">PaulH.</font></div>
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<blockquote style="BORDER-LEFT:#000000 2px solid;PADDING-LEFT:5px;PADDING-RIGHT:0px;MARGIN-LEFT:5px;MARGIN-RIGHT:0px;">
<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 title="mgs@autox.team.net" href="mailto:mgs@autox.team.net" rel="nofollow" target="_blank">Jack Wheeler via
Mgs</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 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> Thursday, January 17, 2019 8:20
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</div>
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<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>
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<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>
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<div>Jack<br></div></blockquote></div></div></div>
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