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Old 12-17-2012, 03:07 PM
kymowboy kymowboy is offline
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Join Date: Jun 2012
Location: Kentucky
Posts: 52
The engine was laboring but kept chugging along. Pulled the head and found a ridge in the combustion chamber, my guess is a crack in the die at the foundry. One, or some, of the peaks was making a hot spot that ignited the gas. Massaged the head with a D/A to make everything smooth and reassembled. The problem went away.
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