Farm Equipment - Replacing crankshaft seal

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Replacing crankshaft seal

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=33796
Printed Date: 03 May 2025 at 5:30pm
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Topic: Replacing crankshaft seal

Posted By: Goose
Subject: Replacing crankshaft seal
Date Posted: 13 Jul 2011 at 11:08am

Like a lot of older tractors, my WD leaks oil. It's not bad, but still it's not nice on a garage floor. I keep cardboard beneath it to soak up the oil.

But my question is whether or not I can replace a crankshaft oil seal without pulling the engine. I just assumed it meant a total dismantling which, in my case, I'd probably rebuild the engine while I'm at it. But that costs money and time.

So, can I replace either the front or rear crankshaft seal easily?

Replies:

Posted By: Gary in Texas
Date Posted: 13 Jul 2011 at 1:18pm

To replace the front seal, you should pull the timming cover, then center it on the crankshaft when going back together.

To properly replace the rear upper seal you need to remove the flywheel, the lower is in the rear main bearing cap.

It would be easiest to pull the engine for it all.

Posted By: norm[ind]
Date Posted: 13 Jul 2011 at 8:05pm

have replaced many seals just remove frt. pullypull out seal an install a new one