[Gmecm] Hard to fix oil leaks from around a 1988 2.8Loilpumpdrive gear

[David Allen]

Yes, sir! that was my experience too. (with the sticking in the engine and
mangling the cap).  It is easiest to get the OEM seal, especially thinks to
your having the part number.  But the Viton lathe-cut seal will not become
hard and fail to seal like the OEM rubber ones. I've had one in my car and
it has survived numerous distributor R&I's and is still sealing. After 6
years and 100,000 miles.
David

----- Original Message ----- 
From: "Phillip Kuhn" <pmkls1 at yahoo.com>
To: <gmecm at diy-efi.org>
Sent: Monday, December 26, 2005 10:29 AM
Subject: Re: [Gmecm] Hard to fix oil leaks from around a 1988
2.8Loilpumpdrive gear


> I'm sorry I didnt see the original post, but it
> appears that somebody is looking for the o-ring for
> the oil pump drive for a 60 degree chevy 6 cylinder. I
> dont know what dealer you have been to but if they
> dont know what you are talking about and dont have at
> least 20 of those things in stock then I wouldn't go
> there for anything. I was a GM dealer technician for
> several years at every GM brand there is and not a
> single one of them didnt stock at least a half dozen
> of those seals. The same part number fits pretty much
> every 2.8, 3.1, and 3.4 ever made from the 80's to
> present. The G.M. part # is 10477565 and they usually
> run about 50 cents a piece. Those things have always
> leaked ever since the beginning of time. I never did
> establish a preference on wether or not to use sealer
> when installing the drive and I installed them both
> ways with about the same success. If you install one
> without sealer use a little lube to keep from tearing
> the seal on installation. The only problem that
> happens occasionally is that those oil pump drives
> tend to get stuck in an engine with high miles that
> has a little varnish on the inside. When they stick
> like that it can be a bit tough to remove them and
> sometimes during removal it is easy to mess up that
> plug on top and they will leak oil if those plugs dont
> seal properly. If that happens you can go the cheap
> route and fill the top with silicone and that usually
> works fine. But the entire oil pump drive assembly
> isnt that expensive at about $40 if I remember
> correctly. Hope this info helps,
>
> Phil
>
>
>
>
>
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