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8n rebuild

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Ron

05-06-2002 10:14:35




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I've got a 52 8n that needs rebuilt i'm not sure how to remove the sleeves i'ma good auto mech but this is my first tractor




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Rikiz

05-07-2002 13:28:40




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 Re: 8n rebuild in reply to Ron, 05-06-2002 10:14:35  
I am also rebuilding the engine on a 1952 8n. This is a farming community and some of my friends are excellent tractor mechanics, luckily for me. The best one of the bunch checked everything over and blessed the sleeves. So, she gets to keep her pistons and sleeves (sleeves will just be honed). This should keep her going a few more years. Hope you have good luck with yours.



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Scott N Ky

05-06-2002 17:16:37




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 Re: 8n rebuild in reply to Ron, 05-06-2002 10:14:35  
I'm a good auto mechanic too. But I let a machine shop do this. Depends on your threshold of tolerance.
Thr machine shop also used 'something" to lock the new sleeves N.

I had another engine rebuilt by a "pro" and the sleeve dropped and the engine was wasted.
I "rebuilt" this current engine, but I had a machine shop do all the "dirty" work.



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Danny in CO

05-06-2002 13:49:35




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 Re: 8n rebuild in reply to Ron, 05-06-2002 10:14:35  
Ron,

Your block should have the .090" cast sleeves. DON'T try the screwdriver method to break them out! You'll bust the block!

My advice is more costly than the welding method. I would take the block to a reputable machine shop and have them remove the sleeves and then take it back for them to put the new sleeves in.



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GZ MAG TX

05-06-2002 10:28:26




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 Re: 8n rebuild in reply to Ron, 05-06-2002 10:14:35  
The welding technique, that Zane came up with, worked great for me and I don't claim to be a mechanic or welder! I just ran 3 or 4 beads the length of the sleeve with an arc welder at low temp setting. When the weld cools, the sleeves slide right out. If you are going to replace the pistons, an old piston driven by a block of wood is good for encouraging the sleeves on out of the block.

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