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Thread: Knock on cold start up

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Posts: 11-14 of 14
2012-01-10 18:24:38
no idea bud, maybe someone else can chime in?
2012-01-10 18:35:25
No bigggie, thanks for replying tho im debating parking it, pulling the motor and building it for turbo. I was going to boost it as is but with a week piston or bearing It wont last long at all.
2012-01-12 16:34:22
I am almost convinced it is piston slap in #3 cylinder.

Will a bad lifter leak down after sitting and make noise untill it is warmed up?

Also the noise is not as bad if I put warm oil in a cold engine, which means thinner oil makes the noise not as loud.

2012-01-13 17:21:40
Did compression test. Cold motor, Cylinder #1-217psi. Cylinder #3-186psi piston slap in cylinder #3 it is. Bad rings most likely, or worn cylinder. Either way it sucks ass.

Hope my findings may help someone with similar issues.

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