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I have lost compression in one cylinder taking it apart I have a bad rod and piston, Onan 20hp engine, what should I do to replace the rod and piston coprrectly,some one said to me the only way is replacing it with a short block, any help would be thought of highly,could I get away with a crank rod and piston? Onan parts are very exspensive to say the least. Thanks again

I moved your thread to the Small Engine & Mower Repair Forum....good luck! :smile:

:smile: What is your definition of a bad rod and piston? Also if you give us the complete engine numbers we may be able to help you.