I've rebuilt several engines with only New rings if the bore is less than about9 thousands oversize. I take the block in and have it honed. The machinist will hone the bore till it cleans up the bore to the same size from top to bottom. It is a waste of time to hone it yourself. Forget about those ball hones. They are a joke. The pistons might slap a little when you start it but it stops after the engine warms up and it doesn't seem to hurt a thing. Mine have been good for around a hundred thousand miles. Do you have a ridge reamer? You will need one to get the pistons out without breaking them. You also need some plastiguage to check if the crank needs to be turned. On small one cylinder engines, I've even ground the crank by hand, but that's a skill I won't get into now.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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