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Robller 
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Joined: 18 Sep 2024
Location: New Haven MO
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 Topic: Allis-Chalmers 5040 Stuck rear end
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.
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8241
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Posted: 18 Sep 2024 at 4:40pm |
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So it sounds like the wheel Is catching on something. You should be able to figure that out.
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AC720Man
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Joined: 10 Oct 2016
Location: Shenandoah, Va
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Posted: 18 Sep 2024 at 8:02pm |
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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
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im4racin
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Location: Garrison ND
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Posted: 18 Sep 2024 at 9:00pm |
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“When I take the wheels off”…do you have both sides off at the same time?
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Fred in Pa
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Joined: 13 Sep 2009
Location: Hanover Pa.
Points: 9210
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Posted: 19 Sep 2024 at 8:47am |
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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.
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Robller
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Joined: 18 Sep 2024
Location: New Haven MO
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Posted: 19 Sep 2024 at 9:20am |
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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.
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Robller
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Posted: 19 Sep 2024 at 9:24am |
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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.
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Robller
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Posted: 19 Sep 2024 at 9:25am |
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Yes
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Robller
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Posted: 19 Sep 2024 at 9:26am |
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I am not certain as to if the tractor was moved ie rolled when the engine was rebuilt.
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AC720Man
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Posted: 19 Sep 2024 at 10:47am |
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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
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Robller
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Posted: 19 Sep 2024 at 10:53am |
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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.
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Gary Burnett
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Location: Virginia
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Posted: 19 Sep 2024 at 11:48am |
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Run the lug bolts in when the wheels are off and see if the hubs turn then,betting they won't
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