Farm Equipment - 6140 power steering leak

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6140 power steering leak

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=180274
Printed Date: 05 Nov 2025 at 10:14am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 6140 power steering leak

Posted By: Tomy2tone
Subject: 6140 power steering leak
Date Posted: 02 May 2021 at 8:41pm

im having a power steer fluid leak at the steer gear box cover, i saw in parts list there was an o-ring behind the cover, part id didn't tell the size so i miced the groove and bought a new o-ring, didnt appear to be anything wrong with the old o-ring but installed new and it leaks worse from around the cover now. im at a loss for what to do next. any thoughts or help would be much appreciated. it leaks bad when i dead head the steering in one direction or the other

Replies:

Posted By: Kurzy
Date Posted: 03 May 2021 at 6:45am

Howdy Tomy2tone,

I had 2 6140 4x4,s . No problem with ether one with power steering till I sold them. Ether I was doing something right or they were doing something wrong. That had to be the only weak point in that tractor. Best little 4x4 tractor with lots of power for size and great on fuel! The way I understand they had two different units from factory at the end of the steering wheel gear box. Maybe one was better that the other I dont know. But one of the fellows put a different steer box on his or some how made a fix. Thats all I know.

Kurzy

Posted By: Tomy2tone
Date Posted: 03 May 2021 at 7:15pm

Thanks for the feed back, i love this tractor, I bought it one year ago, used it all summer last summer it never leaked from the gear box cover, then this winter it started and is worse now after i changed oring, i got to thinking the groove for the oring was bigger in width than the 2mm wide ring i put in, i ordered a 2.5 mm and a 3mm today and im gona cross my fingers one of them stopps the leak