A/C o-rings
Thread Starter
Instructor
Joined: Jan 2017
Posts: 226
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From: Milton Ontario
A/C o-rings
I have a couple of A/C hoses from a 71 LS-5 that are going to be cleaned up and re-used. I can take them to an o-ring supplier and have him match up the seals that are on each end but are there any documents that tell you the o-ring numbers (not GM numbers)? Also, one hose has some black paint overspray on it. What chemicals are safe to remove paint from rubber?
Le Mans Master
Joined: Dec 2006
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Thread Starter
Instructor
Joined: Jan 2017
Posts: 226
Likes: 22
From: Milton Ontario
Green is usually Viton where chemical resistance is needed, are there kits available with green or are you talking about getting them sized at a supplier? The ones that are in it are black I think (buna nitrile).
Edit: Just read that Viton is brown and not compatible, but green is Hydrogenated NBR and is a step up from the standard NBR. Good to know.
Edit: Just read that Viton is brown and not compatible, but green is Hydrogenated NBR and is a step up from the standard NBR. Good to know.
Last edited by See Three; Mar 28, 2017 at 12:38 PM.
Safety Car
Joined: Oct 2007
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From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
they use the green with the newer freon gases, the gases are a smaller atom size and can leak thru the black orings, standard green on newer A/C systems.
which is good for all types of Freon.
which is good for all types of Freon.
