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Old 03-25-2010, 12:41 PM   #36
kevinb70
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Re: 98 3.1L top end rebuild (pics)

argh. did a compression test before i got everything together. Should have done this before i put the intake on.

almost no compression in cylinder 3. All others were good. Might have a pushrod misaligned, and the pushrod is not resting in the center of the lifter. The reason I suspect pushrod is because i forgot to torque down the rockers before installing the intake (grrr)

I know I don't have intake/exhaust mixed up because i bagged each separately and made sure correct length anyway, when reinstalling. Going to pop the rockers off those two valves on cylinder 3 and do a leakdown test.

Really doubting the rings are worn out on just this one cylinder, most likely carbon buildup has the rings sticking, which will eventually clear up with clean oil. Also being a cold engine, sitting for a long time, all the more likely - if not the misaligned pushrod.

Doing the wet compression test last.
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