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Allis Chalmers Discussion Forum
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Allis Chalmers C pulley seal

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Bookman

09-17-2017 20:46:04




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In restoring my 1942 Allis Chalmers C I replaced the seal for the belt pulley. It had been leaking. I see that it is still leaking with a new seal. Any tricks I should know in replacing the seal and not having it leak? Looks like oil is coming from from around the pulley shaft. Are the seals something that would be available elsewhere other than through AGCO if I had the Allis Chalmers part number?

Thanks in advance.

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Bookman

09-19-2017 16:03:36




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 Re: Allis Chalmers C pulley seal in reply to Bookman, 09-17-2017 20:46:04  
Thanks very much.



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Rod (NH)

09-18-2017 14:18:02




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 Re: Allis Chalmers C pulley seal in reply to Bookman, 09-17-2017 20:46:04  
Here's my write-up on using a speedi-sleeve on a B belt pulley shaft:



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bookman

09-19-2017 07:56:16




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 Re: Allis Chalmers C pulley seal in reply to Rod (NH), 09-18-2017 14:18:02  
I read your write up on a speedy-sleeve. I used my digital caliber. Unfortunately, it is so precise that in my clumsy hands I kept coming up with different readings every time I used it. Now a full 1 3/8" would be 1.375. My readings ranged from 1.359 to 1.371. Most of the readings were around 1.362 to 1.364. I assuming I should go with a 1 3/8" Speedi-Sleeve. What do you think?

A rubber seal I can get a local car parts place. They have it in stock. I do not know about the Speedi-Sleeve, but with the information you provided, perhaps they can order it. Thanks much.

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Rod (NH)

09-19-2017 15:34:18




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 Re: Allis Chalmers C pulley seal in reply to bookman, 09-19-2017 07:56:16  
That's about the same situation I had. Yes, go with the 1-3/8 speedi-sleeve and apply Loctite RC-620 to the ID just before installing on the shaft. Make sure all mating surfaces are degreased beforehand. The Loctite should be available at your auto parts store. They should also be able to get the speedi-sleeve for you. If not, any power transmission/bearing aupplier should have it or can get it. Be careful and make sure you don't go too deep with the sleeve. You want the sleeve to completely cover the end of the spiral groove in the final position. If you go too deep, you won't be able to pull the sleeve back.

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bookman

09-18-2017 14:17:27




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 Re: Allis Chalmers C pulley seal in reply to Bookman, 09-17-2017 20:46:04  
Thanks for all help. I need to get the old seal out and do some measuring and inspecting.



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Jerry Coulter

09-18-2017 13:21:21




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 Re: Allis Chalmers C pulley seal in reply to Bookman, 09-17-2017 20:46:04  
AC part number is 207993 leather seal for the shaft that has the return groove.
AC part number is 225450 rubber seal for the smooth shaft.

Chicago Rawhide seal number is 13865. The compatible speedy sleeve is 99138.



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Ted in NE-OH

09-18-2017 11:25:20




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 Re: Allis Chalmers C pulley seal in reply to Bookman, 09-17-2017 20:46:04  
Some of the shafts on the C, B have spiral grooves in the seal area which were useful in lubricating leather seals but tear up the modern seals . This is solved with a speedy sleeve.



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bookman

09-19-2017 07:28:04




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 Re: Allis Chalmers C pulley seal in reply to Ted in NE-OH, 09-18-2017 11:25:20  
Yes, this one does have the oil grooves.



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Dick L

09-18-2017 07:45:16




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 Re: Allis Chalmers C pulley seal in reply to Bookman, 09-17-2017 20:46:04  
You might need a speedy sleeve on the shaft. Seals sometimes wear a groove in the shaft and a new seal will not stop the leak without repairing the shaft in some fashion.



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bookman

09-18-2017 08:07:09




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 Re: Allis Chalmers C pulley seal in reply to Dick L, 09-18-2017 07:45:16  
thanks



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