Mystery Exhaust valve part
05-02-2009, 10:01 PM
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Car: 95 SHO. 87 IROC red 69 Vette blue
Engine: 3.0 Yamahammer.5.7 TPI L98, 350
Transmission: mtx4 ,700r4, 4speed,
Axle/Gears: 3.27, 3.73
Mystery Exhaust valve part
What are those plastic cup things that go over the valve stem and under the spring called?, I only see them on the exhaust valves and I lost one in the process of redoing my heads, so I was wondering what they are called so I could get a replacement and what do they do and are they necessary?
05-03-2009, 08:04 AM
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Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: Mystery Exhaust valve part
called valve stem seals , umbrella seals is the most common name . they are cheap , available at any parts store . they keep oil from migrating down valve stem to combustion chamber . they prevent puff of smoke on start-up . i like to put them on all valves , they are cheap , over kill some may say . doesn't hurt anything . good luck .
05-03-2009, 11:20 AM
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Car: 95 SHO. 87 IROC red 69 Vette blue
Engine: 3.0 Yamahammer.5.7 TPI L98, 350
Transmission: mtx4 ,700r4, 4speed,
Axle/Gears: 3.27, 3.73
Re: Mystery Exhaust valve part
Cool, Thanks for the help
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