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February 5, 2021 at 12:46 pm
#229574
I have sometimes very briefly used a 3-stone hone with plenty of oil to see if any part of the cylinder is out of round on a well-used motor. The only one I found to have out of round surface was a 1976 20 Merc with mega-hours on it. After brief honing, you can see the places where the hone didn’t touch.
Dave