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John Sears
Jun 15, 2012, 05:48 PM
What causes a slapping noise coming from the piston area?

smoothy
Jun 15, 2012, 05:55 PM
What causes a slapping noise coming from the piston area?
Bad things.. Worn cylinder, worn piston, worn rod bushing or bearing... or a combination of those.

But if you aren't good at diagnosing where sounds come from.. it could be a partially collapsed lifter or bad cam lobe too. Those are actually less serious.

TxGreaseMonkey
Jun 16, 2012, 05:59 AM
Piston slap = connecting rod issue