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Allis Chalmers Discussion Forum
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Sleeve seals A/C B

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Ken Boyles

09-26-2003 12:18:23




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I am working on an A/C B.
Water was in the oil.
I have taken the sleeves out and repaired creaks on top using JB weld.
Some say this is unnecessary.
Sleeve seals were D shaped & not in good shape.
Replacements which I got from AGCO are round O-rings.
I tried to install them but It appeared that because they are too large(cross section) , they would get sheered off.
Dealer says that this part is the only one listed.
Does anyone know where I can get the D shaped seals?

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wu

10-01-2003 21:30:21




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 Re: Sleeve seals A/C B in reply to Ken Boyles, 09-26-2003 12:18:23  

1) Lube the o-rings
2) Install the o-ring on the sleeve
3) Use dry ice to get the o-ring real cold
4) Install the sleeve assembly in the block

Good Luck



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Read this - best joke tod

09-28-2003 06:42:42




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 Re: Sleeve seals A/C B in reply to Ken Boyles, 09-26-2003 12:18:23  
Great one Phil. My wife laughed too - she has my tube. Guess I'll have to beg permission to use it - for the sleeves I mean.



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Ron

09-26-2003 21:38:51




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 Re: Sleeve seals A/C B in reply to Ken Boyles, 09-26-2003 12:18:23  
I Always use Non-hardening Permatex on the sleeve seals... It acts as a lube while installing, AND helps with the sealing...!!! I also put plenty on the water side of the web, between the sleeves...



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Dick L

09-26-2003 14:15:50




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 Re: Sleeve seals A/C B in reply to Ken Boyles, 09-26-2003 12:18:23  
They are D shaped because of the years they have been in that pressed fit. All old ones will come out that way. They have what is called taken a set. I would bet that you have the correct "O"Rings. You will need to clean the bottom sealing ares in the block untill the sleeve will slip down all the way by hand and turn all the way around by hand. At the top of the land where the "O" Ring needs to start it will need a small taper. I use a wire wheel on an air grinder or electric drill to get most of the crud buildup off and then finish spotting in the sleeves with a 2" 80 grit flapper wheel. For those that do not understand spotting in, it means to only remove materal from the area that is tight. You can use a magic marker or bluing to check where to remove material.
When the sleeves are fitted properly and you have a small taper lead the "O" Rings should be able to be pressed in without shearing.

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wdTom

09-26-2003 19:15:30




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 Re: Re: Sleeve seals A/C B in reply to Dick L, 09-26-2003 14:15:50  
And the O rings will need some lube on them to help them to start in the block. There is some debate as what to use. The O rings have to stand up to engine oil as they seal it into the crankcase so that should be safe to use as would O ring assembly lube,or even grease.



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Dick L Yup

09-26-2003 19:39:33




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 Re: Re: Re: Sleeve seals A/C B in reply to wdTom, 09-26-2003 19:15:30  
You need to lube them good. I have a tube of (now dont laugh) KY Jelly that I use on "O" Rings.



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Phil Munson

09-27-2003 04:36:18




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 Re: Re: Re: Re: Sleeve seals A/C B in reply to Dick L Yup, 09-26-2003 19:39:33  
I do not care if it is the best stuff on earth, you should not have made this post. Do you realize, that if wives find out about this, it will only affirm their concerns that our relationships with our old tractors are not wholesome!? :)



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Sid

09-28-2003 07:06:53




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 Re: Re: Re: Re: Re: Sleeve seals A/C B in reply to Phil Munson, 09-27-2003 04:36:18  
Well if the man ain't got no other use for it he might as well use it up. His way is just as good as any.



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