R/C Tech Forums - View Single Post - Play in the Crankshaft? Time to Replace Engine Bearings?
Old 11-27-2008 | 07:22 PM
  #5  
mrgsr
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From my experience up and down movement was from the front bearing.

I also heard that sirio evo 3 / 4 bearings are only good for engine run in then they need to be replaced.
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