I am working on No. 2 of my three Super M's. It needed an engine overhaul, but it needed a little work on one cylinder (.003 bored) and the crank, too. I had a VERY reputable engine shop do my work.I was supposed to get my engine back this morning. It was almost completed last night. Supposed to. Last night my machinist was measuring the cylinders with the sleeves in them and found that they were egg shaped, by about .0004 inches. I guess this is a bad thing? I have no frigging clue. My uncle, who has overhauled millions of Farmalls, said he had never looked at the cylinders for that, the sleeves came out, the sleeves went in, and he started it up. He made the joke that "I don't think my eye would notice it off that much." (He has one glass eye.) Also, the spec clearance between the piston and sleeve was way higher compared to what he was reading, and my machinist said that it could scoar the sleeves if it got heated up and the pistons expanded. So he decided since there was nothing to do about the egging he would at least bore it out to specs. But the head studs won't come out, and his bore machine won't go down far enough because of it. I was going to buy a drill operated hone tonight, but haven't found one. Ask me questions... I have just never heard of so much **** going through an M engine as I have from this one from the very second I pulled the head. I know I'm not being charged hourly for the labor, but I'm wondering if the engine will be just fine without all the tweaking. As of right now the plan is that I'm going to bring my drill and my hone out and finish the bottom of the cylinder, and he can measure until they are at least close, and then we will call it. I am well over my head on this one, boys. Doing it doesn't worry me... whether or not I am doing it for the right reasons scares the tar out of me... Looking for some expert advice here. Thank you friends.
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