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Old 06-10-2016 | 07:14 PM
  #8  
captinjohn
 
Joined: Jan 2002
Posts: 12,957
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From: Hesperia Michigan, MI
Red face

Some engines have a tiny pin in ring grove so the Piston ring does not rotate & catch ports. John

Last edited by captinjohn; 06-10-2016 at 07:16 PM.