Thread: Blown motor
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      11-21-2012, 01:56 AM   #7
m3an
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Quote:
Originally Posted by RenoE92M3 View Post
Without taking it apart its all just speculation but it sounds like piston slap. Its not heavy like rod knock sounds too slow and low pitch for valve train.

but its def in the bottom end? sucks, keep us updated (as frustrating as it may be) good luck