R/C Tech Forums - View Single Post - direction of piston pin varies???
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Old 11-29-2009, 08:03 PM
  #12  
gpm-parts.com
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Join Date: Mar 2009
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No, the pin was completely open. I remember it as I had a hard time try to remove it as I don't want to damage the hole in the piston or the rod bushing.... But it maybe a side exhaust engine for my bike or helicopter.....

Originally Posted by M7H
Picco.
But it is closed in the middle, if it really was open, you would loose pressure built up in the crankcase.
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