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mike mcmurray
02-27-2007 04:06:48
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Hi all, just figured I'd give an update as to my TO 20 rebuild. I picked the block up last thursday. The guy drilled three holes thru the side of the block to the other and installed long bolts and nuts at the bottom cast webbing. This pulled the cracks in the webbing back. He also installed the new sleeves and o rings (I bought a rebuild kit from tisco). Saturday I installed the crank, mains, thrust washers, shims, etc to get my end play. The crank was ground .040. Got the required end play spec. of .007.....sweet (manual says between .003-.007). TOok it apart and installed everything again, with the cam, lifters, governor, and gaskets.....torqued everything again, and still had the .007 on the crank (also had .007 on the camshaft. ). This was sunday. Yesterday morning, Monday, I awoke early (I have vacation this week) and was out in the shop at 4 a.m. installing rings, pistons, rods, etc. All specs. for the main and rod oil clearances were .0020 (supposed to be between .0015 and .0025 according to manual). Gave the crank pully nut a turn after each assembled piston to see that it wouldn't bind. Lastnight I took the engine off the stand and mounted to the tractor. I put on a new friction plate, pilot and throw out bearing. The flywheel face was refaced. ( I did not measure the clutch release lever to flywheel, the manual said its suspposed to measure 1 13/16. Any feedback on this? Can this adjustment be made up with peddle adjustment? I would hate to have to split again, but will if you all think its critical!!!!! Aside from that, I still need to put the head on (but can't yet as I had to order a couple engine studs), the oil filter unit and pan, the front axel, radiator, and all the other assessories. So far so good. Wanted to keep you all posted. I am having a ball with this project!!!!! Please let me know about the clutch release levers (and how critical it is- I do not know how the clutch was before, I believe it grabbed, but as far as how it funtioned, I do not know- tractor was not running when I got it). I also had a question, since this will be a new engine, about breakin procedures....I hear a lot about priming the engine.....how would this be done????? ? Have a good day. Mike mcmUrray
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