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Farmall & IHC Tractors Discussion Forum
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How tight should new sleeves be in the block?

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Brad

01-04-2004 21:09:30




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I just finished putting new sleeves and pistons in my 1946 A. I used the hand crank to turn the engine over several times to distribute the oil a little better than I could by hand. I noticed that two of the sleeves were moving up and down a little with their pistons. Is this normal or should I get back in there and check the o rings?




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Pappy

01-06-2004 23:17:37




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 Re: How tight should new sleeves be in the block? in reply to Brad, 01-04-2004 21:09:30  
I got an overhaul kit from Case-IH for a 200. The instructions said to clean the block so that the sleeves could be rotated by hand when properly installed. I had to do some cleaning, but they worked just like the book says. If the sleeves raised up a little and went back down, the "O" rings should be ok.



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Hydro Rob

01-05-2004 17:16:42




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 Re: How tight should new sleeves be in the block? in reply to Brad, 01-04-2004 21:09:30  
Hate to be the bearer of bad news, but you need to check the o-rings. Even if they didn't get damaged - they may have "rolled" slightly, which ain't good. Sounds like a pain, but it will be a lot easier to do now than when the crankcase is full of water and your new bearings are shot. Remove and inspect each one very carefully - a tiny nick could spell disaster. If there's any doubt at all - replace 'em. O-rings are cheap. I've done a few in-frames on DT-466 equipped trucks, and I learned this lesson the hard way. Nothing worse than buying a rebuild kit twice, plus your pride takes a pretty good kick to the groin!! Live and learn. Also, Bob is right. Use short bolts and flat washers to keep 'em in place while turning the engine over. Try to get at least two on each sleeve - three is better.

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Bob

01-04-2004 22:04:32




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 Re: How tight should new sleeves be in the block? in reply to Brad, 01-04-2004 21:09:30  
You should NEVER turn over a wet sleeved engine without securing the sleeves. Use some washers along with short bolts that fit the head bolt holes to gently clamp each sleeve down so it will not try to move up and down with the pistons before you turn it over.

I have no idea if your sleeves have moved enough to hurt the packings or "O" rings, but having them move should be avoided.



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Mickey Cook

01-05-2004 04:20:03




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 Re: Re: How tight should new sleeves be in the blo in reply to Bob, 01-04-2004 22:04:32  
Ups. What are the packings you are talking about? I just finished rebuilding and engine. The rebuild kit came with a bunch of string. No instructions so I didn't know what to do with it. Hope this is not the packings you are referring to.

Mickey



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Bob

01-05-2004 05:38:17




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 Re: Re: Re: How tight should new sleeves be in the in reply to Mickey Cook, 01-05-2004 04:20:03  
The lower end of wet sleeves are sealed to the block with rubber "O" rings, or square-cut rubber rings. Some engine manufacturers refer to the rubber rings for the sleeves as "O" rings, and some refer to them as packings.

I don't know what the "string" is in your kit, unless it is graphited packing for the water pump.



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