how can i tell if i have a bad valve seal?
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i found a plug , number 6, thats got oily gunk on it and i saw sum oil resado on the spark plug wire. looks like oil is getting in there sum how. how would i tell if its a bad valve seal or valve guide? I pulled the dual springs off but i cant tell by looking at the valve stem area or am i missing something
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Another way is to perform a leakdown test. If you plug in the compression hose into the spark plug hole and then fill it up with about 100psi of air, if you remove your valve cover, you will hear the air seeping out from the valve seals.
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Originally Posted by pdd
i found a plug , number 6, thats got oily gunk on it and i saw sum oil resado on the spark plug wire. looks like oil is getting in there sum how. how would i tell if its a bad valve seal or valve guide? I pulled the dual springs off but i cant tell by looking at the valve stem area or am i missing something