Farm Equipment - replacing crankshaft pulley

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replacing 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=207386
Printed Date: 15 Jul 2025 at 2:30am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: replacing crankshaft pulley

Posted By: 54f250
Subject: replacing crankshaft pulley
Date Posted: 07 Jul 2025 at 1:25pm

I removed the crankshaft pulley (series II D12) in order to replace a leaking front main oil seal. I broke it taking it off. I have a new pulley but is at least as much trouble going on as it was coming off. My crank od measures 1.12 as does the pulley id. I know I have to heat it, but is there anything else I should be doing?

Also, Does the pulley side with the set screw go inside or outside the pulley? When I took the pulley off, the set screw was inside but if I put the new pulley on with the set screw in, the fan belt will not be aligned.

Any advice will be greatly appreciated.

jim

Replies:

Posted By: Alvin M
Date Posted: 07 Jul 2025 at 2:10pm

70236741 is before s # 3001 70235043 is after s # 3001 that is series II