Quote:
Originally Posted by sl2ner
could it be a collapsed lifter not letting the valve open and let enough air in??
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That's very possible. Do you hear any clacking during startup or anytime while running? There's also a slight chance the cam lobe is bad on that cylinder not opening the valve far enough. It could also be a bad cylinder, but I would imagine that would trash the rings as well, making it impossible to seal well no matter what the position. Seems like valve seats also would just leak no matter what if they do leak.