Farm Equipment - WD crankshaft pulley

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WD crankshaft pulley

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=204993
Printed Date: 28 Jul 2025 at 4:23am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: WD crankshaft pulley

Posted By: SteveRogers
Subject: WD crankshaft pulley
Date Posted: 18 Jan 2025 at 11:07am

I think it's my crankshaft pulley that is broken. Fan and power steering belts aren't turning when the tractor is running. Looks like a cast iron piece is broke out of part next to where the crankshaft comes out. How big of a job is it to get to this piece? Any tips or suggestions on how to get to and fix this part would be appreciated.

Replies:

Posted By: Nathan (SD)
Date Posted: 18 Jan 2025 at 7:23pm

You really need to disassemble it to see actually what you need to do. If it is a Char-Lynn pulley causing the trouble you might need to get creative on a solution or buy a new double pulley all together.

Posted By: Gary
Date Posted: 18 Jan 2025 at 9:11pm

To get to the Pulley:

   drain the Rad
   remove the Hood
   remove the Rad Cover Shell
   remove the Rad, don't forget the 2 @ 3/4" socket bolts that are accessed
      from under the Rad.

   Now I think the Crankshaft Pulley should be accessible.

   G

Posted By: DrAllis
Date Posted: 19 Jan 2025 at 7:21am

I would be very concerned about what condition the crankshaft snout is in after this kind of failure.

Posted By: SteveRogers
Date Posted: 23 Jan 2025 at 2:59pm

The crankshaft pulley does not appear to be broken in any way. But there is another part that goes over the top of the pulley and has 4 set screws that attach it to the pulley. What is this part for and how I know what should be the tolerances should be or how should it be adjusted to the crankshaft pulley?

Posted By: Nathan (SD)
Date Posted: 01 Feb 2025 at 9:34pm

That is the Char-Lynn pulley. It is an add on to spin the power steering pump.

A total disassemble is in order to see what parts are salvageable. If that pulley came loose, there is a pretty good chance it is wore too much to hold onto the crankshaft pulley.

Posted By: DaveKamp
Date Posted: 05 Feb 2025 at 8:01am

Steve- I sent you a PM- I'll be back in the QCA this weekend, I can come over for a look and help you find a solution.

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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.