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Oil on plugs 5.3

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Old 06-12-2018, 05:37 PM
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Default Oil on plugs 5.3

I have a gen 3 5.3 and i recently had the heads resurface due to a head gasket and we also replaced the lifters. Now i can hear like a knocking im not sure what it is but sounds like the driver side i remove the plugs and #3 add oil all over the threads and electroid could this be a bent valve or maybe push rod rockers seem find
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Old 06-13-2018, 06:53 AM
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Thatís not a good sign.

Iíd start with a compression test to see what the psi is. Iím betting itís low.

Might as well do all 8 and see what the variance is.
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Old 06-13-2018, 08:35 AM
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Oil on the is either a stuck oil ring on the piston or a valve stem seal.. be willing to bet if it was not oil fouled before its a torn valve stem seal
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Old 06-13-2018, 10:05 AM
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What will be the ticking
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Old 06-14-2018, 12:28 AM
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Lifter or maybe a loose rocker.... could even be something with the valve spring... just recently had to deal with that on my yukon....
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Old 06-14-2018, 12:30 AM
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I also agree with madmann about a compression test and maybe a vacuum guage to see what is truly going on
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