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Re: 1972 Saab 96 V4 Overheating Posted by eric in vermont [Email] (#2058) [Profile/Gallery] (more from eric in vermont) on Mon, 30 Oct 2023 11:05:43
In Reply to: Re: 1972 Saab 96 V4 Overheating, Jonathan, Mon, 30 Oct 2023 10:54:56 Members do not see ads below this line. - Help Keep This Site Online - Signup
I'm pretty sure the black part is an old valve seal. They're the little rubber umbrellas that fit over the valve, inside the spring and prevent oil from leaking down into the cylinder head. They get hard after a few thousand heat cycles and tend to crack and break. You can replace them with ones from your cylinder head gasket kit- they should come with the kit. You need a simple valve spring tool to remove the "keepers" from the end of the valve spring. Go through one by one and replace them. It's a good idea to pull the valve out once it's free and visually check the mating surfaces, especially the exhaust valves for burning or mushrooming. The valve seal isn't related to your overheating problem, but that's what that black washer thing is. You can also buy them separately if not in your kit.
eric in vermont
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