It looks like the ring pin came out. Is the top ring whole? Check the ring gap. It should be .006 to .008 inch. It didn't look like the ring spun and snagged the exhaust port.
It looks like the ring pin came out. Is the top ring whole? Check the ring gap. It should be .006 to .008 inch. It didn't look like the ring spun and snagged the exhaust port.
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