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Crankshaft seal
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TMiller/NC View Drop Down
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Joined: 11 Sep 2009
Location: Lenoir, NC
Points: 1776 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TMiller/NC Quote  Post ReplyReply Direct Link To This Post Topic: Crankshaft seal
    Posted: 26 Mar 2019 at 12:11pm
Need the crankshaft front and rear seal numbers or ID and OD for Allis Chalmers B with CE engine.  Many thanks,  Tim
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CrestonM View Drop Down
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Joined: 08 Sep 2014
Location: Oklahoma
Points: 8455 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CrestonM Quote  Post ReplyReply Direct Link To This Post Posted: 26 Mar 2019 at 12:26pm
In regards to the front: The early CE engines used a smaller OD seal than the later ones. I couldn’t find the smaller diameter seal for my engine, so I just used a Dremel and enlarged the hole in the timing cover, then used the larger seal that I got from DJ’s tractor parts.

Edited by CrestonM - 26 Mar 2019 at 12:26pm
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mdm1 View Drop Down
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Joined: 12 Sep 2009
Location: Onalaska, WI
Points: 2680 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mdm1 Quote  Post ReplyReply Direct Link To This Post Posted: 26 Mar 2019 at 12:29pm
I took the timing cover to napa and they ordered one to fit. Make sure you line up the cover and tighten it down before you put the seal in. I will be redoing mine!
Everything is impossible until someone does it! WD45-trip loader 1947 c w/woods belly mower, 1939 B, #3 sickle mower 1944 B, 2 1948 G's. Misc other equipment that my wife calls JUNK!
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Joined: 11 Sep 2009
Location: Lenoir, NC
Points: 1776 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TMiller/NC Quote  Post ReplyReply Direct Link To This Post Posted: 26 Mar 2019 at 12:29pm
Thanks Creston, I haven't torn the engine down yet was going to gather some parts 1st.
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CrestonM View Drop Down
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Joined: 08 Sep 2014
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Points: 8455 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CrestonM Quote  Post ReplyReply Direct Link To This Post Posted: 26 Mar 2019 at 12:54pm
I did it a little different than what mdm1 said. I put the seal in the timing cover, then installed it, centered it, and tightened it down. I tried to eyeball it as best I could, and 4 years later, it's not leaking yet. 
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TMiller/NC View Drop Down
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Joined: 11 Sep 2009
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Points: 1776 		Post Options Post Options   Thanks (0) Thanks(0)   Quote TMiller/NC Quote  Post ReplyReply Direct Link To This Post Posted: 26 Mar 2019 at 1:07pm
Are speedy sleeves required these seals?
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CrestonM View Drop Down
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Joined: 08 Sep 2014
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Points: 8455 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CrestonM Quote  Post ReplyReply Direct Link To This Post Posted: 26 Mar 2019 at 1:15pm
Something is required, yes. Otherwise the spiral groove cut into the crankshaft will cause a leak. 
I'm sure some folks will say what I did is "wrong", but instead of bothering with a Speedi Sleeve, I used some JB Weld to fill in the spiral, let it cure, then sanded/filed it down to be flush with the crankshaft snout. This method works, because the seal isn't riding on the JB Weld, but rather the crankshaft snout, which keeps the seal from wearing away at the JB Weld. 4 years have passed, no leaks yet. 
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