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Re: Farmall 100 Engine Rebuild Questions
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Posted by ZANE on November 10, 2004 at 05:29:04 from (64.12.117.13):
In Reply to: Farmall 100 Engine Rebuild Questions posted by Hobo,NC on November 09, 2004 at 18:14:37:
Hobo the sleeves are wet type sleeves with rubber O ring seals at the bottom of the sleeve where they meet the block and the head gasket seals them at top if my memory serves me right. I worked at an IH dealership from about 1967 through 1970 or so. Getting the sleeves out is like taking candy from a baby compared to the N engine with the dry sleeve. I seem to remember that the bottom of the sleeve protrudes into the crankcase by at least an inch or so and you can use a block of hard wood or brass drift to knock the sleeve up till it is free. Be sure to clean the block where the O rings go and at the top where the lip of the sleeve sits so you don't have any leaks when you go back. Grease the new sleeve seals good and the new sleeves will just slip in easy by hand. Most of the old IH engines like the one in your 100 came with low compression because most of the older tractors were designed to burn distillate or kerosene etc. and that requires low compression ratio. There were what they called the "super" kits available to use if you planned on using strictly gasoline fuel. This is the reason for the Domed pistons. Usually the sleeve was a little thinner too with increased cubic inch for more compression. I forget the claims for power increase but it did seem to have some effect on power increase. I wouldn't worry myself about the end play on the crankshaft. This ain't a rocket engine! :O)
I think I would go with the standard crank if it is within tolerances. Not over /002 wear and fairly round. I have never seen a broken crank in an IH tractor. The front pulley on some of these engines is a chore to get off. Press fit and that's it! Really need a good gear puller that you can clamp around the back of the pulley to pull it off. That engine was the same basically as the C, H, A and B IH tractors. Probably some others too. Zane
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