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Farmall & IHC Tractors Discussion Forum
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Loose sleeves in 706

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JW

01-12-2005 18:32:04




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I"m tearing down a 706 gas for an overhaul, when I went to push out a piston the sleeve came with it. The rest all came out using only a old hammer handle to tap them out. Should they be this loose, I"ve never been in a dry sleeve engine other than a few M"s and they were much tighter.




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captaink

01-13-2005 09:15:40




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 Re: Loose sleeves in 706 in reply to JW, 01-12-2005 18:32:04  
I thought of one more thing, make sure that the groove in the block that the sleeve “sits in” is not worn and that there is no other evidence that the sleeve may have been “working” up and down with the piston as it ran.



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Aces

01-13-2005 06:39:19




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 Re: Loose sleeves in 706 in reply to JW, 01-12-2005 18:32:04  
You say 706 gas That could be the 263 or the 291 and no the sleve should not be loose in the gas engine. Here again I don't know how many times it has been rebuilt, but the sleve should have had to be pulled out. I would say some one has honded it to much to clean it up. If ever thing else is ok I would spray the new loose sleve with a little aluminum paint and install it. The early diesels of this engine had slip fit sleves.

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Andy Martin

01-13-2005 05:51:29




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 Re: Loose sleeves in 706 in reply to JW, 01-12-2005 18:32:04  
I've had sleeves on an M come up when rolling it over to get pistons down to measure sleeves in place.

Never thought it was a problem.



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K.B.-826

01-12-2005 20:21:20




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 Re: Loose sleeves in 706 in reply to JW, 01-12-2005 18:32:04  
Some of these earlier six-cylinder gas/glowplug diesels had sleeves that could fit kind of loose. If you check the manual, it will tell you that sleeve fit can range anywhere from being loose enough to push in by hand, to a slight interference fit. I overhauled a C-263 in a 706 two years ago, I needed a puller to remove the old sleeves, but two of the new ones slid in about 3/4 of the way, then I finished them with a rubber mallet. The other four needed the mallet most of the way. Some guys reccomend using locktite on these sleeves, so far I've been fine without.

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captaink

01-12-2005 20:15:36




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 Re: Loose sleeves in 706 in reply to JW, 01-12-2005 18:32:04  
JW, In a perfect world, the sleeves should be tight enough that it takes some force to move them in the block. However, as long as they make sufficient contact to dissipate the heat from the combustion is really all that is necessary. This is because the sleeve is held in place between the ridge in the block and the cylinder head. If the new ones don’t fit tight, I would suggest either measuring the block with an inside micrometer or have it done at a machine shop.

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