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Old 03-23-2018, 10:38 AM   #12
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Join Date: May 2010
Location: Gwynn's Island Va
Posts: 1,096
Default Re: Chasing the knock.

I've had a couple of motors that looked like this. By the amount of dirt and sludge and the timing gear I'd say the oil wasn't changed often. Look at the scoring on # 2 and 3 cylinders. The Pistons are probley slapping.
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