popping piston ring noise

Justin in mt · Aug 4, 2012

since my w9 makes a popping noise under any load and backfires out of carb. someone told me that it could be a stuck piston ring so is that a possible reason. thanks

Anonymous-0 · Aug 4, 2012

Have you adjusted the valves??

JRSutton · Aug 4, 2012

adjust valves - adjust the carb - make sure you're getting a solid spark - make sure you're timing is close to proper.

THEN I would start thinking about things like stuck rings.

gene bender · Aug 4, 2012

Have you done a compression check thats always first then adjust tappets

rustred · Aug 4, 2012

that is a valve or camshaft problem.remove valve cover and check to see that all valves are opening while turning engine over. adjust valves to .017 hot, .019 cold.
stuck ring will not cause backfiring.

Brownie 450 · Aug 4, 2012

Bent pushrod??

Allan in NE · Aug 4, 2012

That "popping" noise is coming from the valve train.

Allan

David G · Aug 4, 2012

I agree with the others, check valve clearances, then if issue check compression. May have bad valve. A piston ring issue would show up as blow by or oil consumption.

rhtx55 · Aug 4, 2012

I had a 46 H that was acting the same way, took the valve cover off & two pushrods had jumped out of place, the valve lash was WAY OFF. The two valves were starting to get "sticky" Got real lucky, I was to pop them loose with a few light taps, applied some tranny fluid and they freed right up, neither push rod was bent. Set the valves & it ran like a new.

popping piston ring noise

Justin in mt

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Anonymous-0

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JRSutton

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gene bender

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rustred

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Brownie 450

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Allan in NE

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David G

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rhtx55

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