What do we think? posted by longlivetheZ on April 21, 2013 at 04:38 PM
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Easy way to see if your intake or exhaust valve is not sealing correct is to hook up a air gauge into the spark plug hole n make sure the piston is on TDC. Shoot compress air into the cylinder head and listen to where you here the hissing. It should either come either out of the intake or the exhaust pipe. You need to know the compression for Turbo n nonturbo engine. It should be no more then 20% difference between each cylinder.