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LS1 Knocking Sound

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Uploaded by on Feb 19, 2011

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Uploader Comments (al2327)

  • Ended up being a bad main bearing. Half of the bearing on main #4 was destroyed/gone.

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  • Definitively a lifter... not every time will be a piston slap or bearing... trust me i just rebuild mine...

    have you fixed yet..?

  • Sounds like a spun bearing. Stop the engine, maybe you'll mess the crank and more stuff. Take out your oil filter and cut it open. There must be the culprit !

  • Sounds like when mine lost a rod bearing.

  • maybe a loose rocker, or a lifter.

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