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  • Jun 15, 2012, 05:48 PM
    John Sears
    Piston noises
    What causes a slapping noise coming from the piston area?
  • Jun 15, 2012, 05:55 PM
    smoothy
    Quote:
    Originally Posted by John Sears View Post
    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.
  • Jun 16, 2012, 05:59 AM
    TxGreaseMonkey
    Piston slap = connecting rod issue

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