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Re: [GMCnet] oil cooler adapter gasket [message #260622 is a reply to message #260605] Mon, 01 September 2014 09:01 Go to previous messageGo to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma:
Senior Member
John,

I was going to measure the ID / OD / depth of the slot in the oil filter adapter and find the correct O-ring to use when I stumbled
on to the Dorman kit (can't remember how) so I decided to give it a go and as you've noted you have to stretch it a bit get it in
the slot but it does stand "proud" of the slot enough to seal as you and I have discovered.

You can't see it but I also installed an O-ring around the extension piece where it screws into the oil filter adapter. I did that
to help keep it from turning when I removed oil filters.

I think I have a spare oil cooler adapter laying around, I'll try to remember to measure it and come up with the correct size O-ring
to fit in the groove properly.

Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428

-----Original Message-----
From: John Heslinga

Re Quote:

> I Googled Dorman P/N 917-036 and all the sources, for example Amazon, claim that that "This does not fit your: 1976 Oldsmobile
Toronado". Or that they are a "Kit Set of 3 for Nissan Infiniti" at AutoZone etc.

That is correct. The O ring that Rob identified is not for an Oldsmobile. In fact it is a little bit on the small side. (Total
Diameter)

HOWEVER: It works very well on the Oldsmobile adaptor. You will need to stretch it a tiny bit to get it into the groove of the
Cooler Adapor. I used it too!!!

By torqueing the adaptor to the required torque the metal to metal fit of the two parts will keep them from spinnig on each other,
and the pressure is spread over the entire flange of the filter adaptor. The crush of the O ring will seal the fitting properly.

As was suggested I, too used an oil filter O-ring (new one) and when I torqued to the required torque, The pressure from the harder
o-ring cracked the Filter Adaptor flange because the pressure was too localized or too uneven on the outer part of flange. (There is
too much rubber there).

Best Regards

--
John

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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