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gshadel
05-21-2004 11:22:03
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Re: TO-20 engine rebuild in reply to Clint, 05-20-2004 12:08:17
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My rebuild started out as an in-frame rebuild. I pulled and installed new sleeves while in the frame. I found pulling the sleeves with the crankshaft still in the way was a bit of a pain in the butt, but I got it done using several ideas off this post. Once the old sleeves are out, an in- frame rebuild is all down hill after that. I don't have an engine stand, so doing as much as possible in-frame was easier than rolling that thing around on the floor.
My plan was to pull each crankshaft bearing cap, one at a time, inspect it, plasti-gauge it for clearance, then retorque them. When I pulled the front bearing cap I noticed the bearing face was shot. It got me worrying about the rest of the bearing and journals, I ended-up pulled the engine anyway... after I had already installed new sleeves. By the time I had the engine tore-down to install sleeves, it only took me about 2 - 3 hours to drop the engine altogether. If you know your crankshaft is in good shape, do the inframe rebuild. If you are not sure about the crankshaft bearings, journals, or clearances, go ahead and pull the engine and crankshaft. It would be tragic to install new sleeves and pistons,just to have the crankshaft spin a bearing or worse. Pulling the engine was a lot easier than installing. Didn't have an engine hoist either, just a rolling jack, and some jack stands. I had to go rent a hoist for a couple hours to get the engine back on again, it was well worth it.
Rifle cleaning tools, bore brush, swabs, etc. are real handy for cleaning all the oil passages in the block and head. Good luck
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