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compression check questions

2204 Views 23 Replies 5 Participants Last post by  unfetteredmight
Hi Guys,

I know a compression check is pretty easy to do but I have a few questions about the procedure.

Can a compression check be carried out with the engine "out of" the frame?
Can it be done safely with the oil drained? would that be accurate?

I would guess, but thought I would ask anyways...


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Also there are two dowels per holder and that's where you'll meet your resistance if your having trouble getting those holders to come up. Use something plastic to gently pry so as to not slip and scratch a cam lobe. Make sure they come up evenly, I suspect that they could break easily if too much stress is applied.
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