Farm Equipment - Allis-Chalmers 5040 Stuck rear end

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Allis-Chalmers 5040 Stuck rear end

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=203263
Printed Date: 23 Nov 2024 at 1:18am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Allis-Chalmers 5040 Stuck rear end

Posted By: Robller
Subject: Allis-Chalmers 5040 Stuck rear end
Date Posted: 18 Sep 2024 at 2:13pm

I have a 5040 which we are rebuilding. The engine is now complete, and all put back together. When we fired it up and drive it around the rear wheels locked up with 1/4 turn in either direction. When I took the wheels off the hubs rotate without locking up. It is more like a hard stop that occurs with the wheels on. So freely turning without the rear wheels on and stops at 1/4 turn with the wheels on.

I have had it both in and out of gear and the only change is if the wheels are on or they are not on. I can't imagine that the lug bolts cause a problem or the weight of the wheels. There seems to be something in the axle area between the hub and the differential.

I hope someone has an idea about this before I have to do a lot of work that probably isn't required.

Replies:

Posted By: SteveM C/IL
Date Posted: 18 Sep 2024 at 4:40pm

So it sounds like the wheel Is catching on something. You should be able to figure that out.

Posted By: AC720Man
Date Posted: 18 Sep 2024 at 8:02pm

Are the lug nuts the proper ones for this tractor? May be too long?

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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD

Posted By: im4racin
Date Posted: 18 Sep 2024 at 9:00pm

“When I take the wheels off”…do you have both sides off at the same time?

Posted By: Fred in Pa
Date Posted: 19 Sep 2024 at 8:47am

Did you have the wheels off when rebuilding the engine . How was it when parked to work on it . What all did you do to tractor .

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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.

Posted By: Robller
Date Posted: 19 Sep 2024 at 9:20am

There is something in the axle housing where the hard hit sound comes from. Someone else asked about the lug bolts and the ones we have are what have been in place.

Posted By: Robller
Date Posted: 19 Sep 2024 at 9:24am

The wheels were on when the engine was rebuilt. The clutch was replaced but nothing in the rear end. Changed oil. This is a new to us tractor that had 800 hours. It had been sitting outside and water ended up in the engine. We bought it knowing there would be some issues. We have a same model for spare parts. We have a vineyard and there is a specific piece of tilling and hedging equipment that matches to the mounts which is why we bought a duplicate.

Posted By: Robller
Date Posted: 19 Sep 2024 at 9:25am

Yes

Posted By: Robller
Date Posted: 19 Sep 2024 at 9:26am

I am not certain as to if the tractor was moved ie rolled when the engine was rebuilt.

Posted By: AC720Man
Date Posted: 19 Sep 2024 at 10:47am

Have you tried jacking the rear of the tractor off the ground and rotating the tires by hand without the engine running and the transmission in neutral? Sounds like it may be the differential?

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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD

Posted By: Robller
Date Posted: 19 Sep 2024 at 10:53am

Yes. We have had it up on blocks with and without tires. It rotates 1/4 turn in either direction with the tires on and there is not an issue with the tires off. It is out of gear and the engine is not running.

Posted By: Gary Burnett
Date Posted: 19 Sep 2024 at 11:48am

Run the lug bolts in when the wheels are off and see if the hubs turn then,betting they won't