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H4 ALLIS PROBLEM

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=94465
Printed Date: 06 Jul 2025 at 3:32pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: H4 ALLIS PROBLEM

Posted By: pinball
Subject: H4 ALLIS PROBLEM
Date Posted: 29 Aug 2014 at 5:51pm

Took the track off the right side of my allis 4 crawler. Didn't see this when I bought it. it runs okay but wont hold any oil. Don't know if I can have iot built back up or just fiond another case. anyone have one. Norm uploads/11791/004.JPG" rel="nofollow - 004.JPG

Replies:

Posted By: Coke-in-MN
Date Posted: 29 Aug 2014 at 7:45pm

Ah yes the outboard bearing and seal area - common problem - or should say nothing new on machines with no outboard support to axle .

Remove the housing - take to machine shop that does truck transmissions and such , they will bore out case - install a steel machined piece to hold bearing and seal - then weld it to cast .

Problem fixed - both sides of my HD 4 were done this way - one before i bought machine and I had one done . I also had this done on my FD5 dozer.

Will say get it fixed right as the bull gear and top gear shaft - drive and driven - will choke you on price if you have to find them .

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: pinball
Date Posted: 29 Aug 2014 at 8:01pm

I am in the process of taking it off now. having a heck of a time getting the snap ring back to the center. everything is loose except the 4 bolts inside but cant get to them until I get the clutch out. I would like to find another case but I thought about taking it to a machine shop. not sure what either would cost but tears will flow anyway. thanks norm

Posted By: Coke-in-MN
Date Posted: 30 Aug 2014 at 6:48am

Memory has it I paid around $500 for the machine work on HD4 case , found one used one but that case had same problem with loose bearing race area but held seal .Passed on that .