Looking for a Gas Cap O-ring
Thread Starter
Instructor
Joined: Jul 2003
Posts: 158
Likes: 6
From: Edmond ok
Looking for a Gas Cap O-ring
Hi all
Looked through search and couldn't find a source for the o-ring. Mine is really cracked and I hate to buy a new cap just for the o-ring.
Thanks a head for any help.
Beary
Looked through search and couldn't find a source for the o-ring. Mine is really cracked and I hate to buy a new cap just for the o-ring.
Thanks a head for any help.
Beary
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
There have been several post on this very issue. I just applied black RTV to mine, covered the fller neck opening with celephane, installed the cap and let it cure. After it cured,, remove the cap, removed the celephane and BAM,,,, NO MORE LEAKS. I am still looking for the O ring specs also so that I can replace the O ring.
I,,, like you,, cant see wasting a perfectly good cap for a damn 50 cent O ring.
BC
I,,, like you,, cant see wasting a perfectly good cap for a damn 50 cent O ring.
BC
Thread Starter
Instructor
Joined: Jul 2003
Posts: 158
Likes: 6
From: Edmond ok
There have been several post on this very issue. I just applied black RTV to mine, covered the fller neck opening with celephane, installed the cap and let it cure. After it cured,, remove the cap, removed the celephane and BAM,,,, NO MORE LEAKS. I am still looking for the O ring specs also so that I can replace the O ring.
I,,, like you,, cant see wasting a perfectly good cap for a damn 50 cent O ring.
BC
I,,, like you,, cant see wasting a perfectly good cap for a damn 50 cent O ring.
BC
Thanks.
Beary
Last edited by beary58; Nov 7, 2012 at 04:25 PM.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
I'm guessing the dealership doesn't have any? If I can remove mine, I should be able to tell what size and material it is. Buna N and Nitrile are generally resistant to gasolene. Viton is a step above in terms of resistance and cost. Of course, if it's not shaped like an o-ring, then it is probably custom-designed.
Safety Car
Joined: Apr 2007
Posts: 3,582
Likes: 137
From: SoCal CA
Seems like a replacement is only $11 if you dont find an o-ring.
http://www.autozone.com/autozone/par...49_13324_5596_
http://www.autozone.com/autozone/par...49_13324_5596_
Instructor
Joined: Jan 2010
Posts: 240
Likes: 11
From: Plano Texas
Oldtimer
I replaced mine with the recommended GM cap. The replacement had a seal that is not shapped like an o-ring (rectangular cross section and molded on). I tried to remiove the o-ring shapped seal from the old cap and could not get it off without tearing/destroying it. It appeared to be molded on. From my experience I suspect it is not a standard o-ring.
Thread Starter
Instructor
Joined: Jul 2003
Posts: 158
Likes: 6
From: Edmond ok
I think I'm going to treat my all my gas caps with 303 Protectant from now on.
Beary
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