Farm Equipment - Allis 7020

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Allis 7020

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=135777
Printed Date: 07 Nov 2025 at 1:39pm
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Topic: Allis 7020

Posted By: leader58
Subject: Allis 7020
Date Posted: 04 Mar 2017 at 11:32am

Can the front harmonic balancer seal be changed from the outside on the 7020?

Replies:

Posted By: SteveM C/IL
Date Posted: 04 Mar 2017 at 12:02pm

tricky but yes.Usually a small self tapping screw (or three) gives ability to pull with prybar.Crank in way makes it harder to clean bore and drive new seal but can all be done with some ingenuity and patience.

Posted By: MACK
Date Posted: 04 Mar 2017 at 9:54pm

A little heat around outer dia. Of seal will make it pull easier. The seal has locate on it and 300 degrees will loosen the locate. MACK

Posted By: ACjack
Date Posted: 05 Mar 2017 at 9:22am

If there's loctite on the outer edge of the seal then that isn't the factory seal in there. The factory seal had a "rubberized" red coating on its outer OD to seal against oil leaking past the seal OD and the front cover.

Posted By: MACK
Date Posted: 06 Mar 2017 at 7:45am

The rubberized coating is a form of loctite . MACK

Posted By: Sam T-Ga
Date Posted: 06 Mar 2017 at 6:22pm

I think you have to pull timing cover on 301 engine, seal is pressed in from backside of cover. There is a lip on cover that protects seal.

Posted By: Lynn Marshall
Date Posted: 06 Mar 2017 at 7:46pm

Sorry Sam,but there is no need to pull the cover. Seal is pressed in from the front.