Rear hub noise problem on 5050
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=202900
Printed Date: 18 Sep 2024 at 2:17am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Rear hub noise problem on 5050
Posted By: AC Pete
Subject: Rear hub noise problem on 5050
Date Posted: 27 Aug 2024 at 11:33am
| Hi guys. Having trouble identifying a noise that seems to be coming from the final drive on the left real tire. It happens at the exact same tire position on each revolution. With rear end jacked up and turning tire manually it turns freely until we get to that exact spot where it binds up and with moderate force I can turn the wheel about 6 inches to get past that spot to turning freely again. With both wheels off the ground and both transmissions in neutral the right side does the same, but the noise seems to come from only the left side. I can't say for certain that this noise is coming from the final drive though. Anyone have any thoughts as to what might be going on? Thanks for your time. |
Replies:
Posted By: Ray54
Date Posted: 28 Aug 2024 at 11:11am
Since nobody else wants to stick their head out from under their rock  . Sounds like bad things are happening in the final drive. Take it apart and see, or only drive it where it can sit if it fails. Then if things bind up and it stops rolling, you're not going to cause an accident out on the road.
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Posted By: I M Fedup
Date Posted: 28 Aug 2024 at 11:51am
| If it's consistent with wheel/axle rotation it almost has to be something with the bull gear. I'm thinking something like a shard of bearing cage jammed into the valley between two teeth? I would say take it apart before it gets worse. At this point it would mostly involve some time/ effort, a gasket, and some oil. |
Posted By: Gary Burnett
Date Posted: 29 Aug 2024 at 5:20am
|
I'd be looking to see if the brake was dragging at that spot |
Posted By: DrAllis
Date Posted: 29 Aug 2024 at 7:57am
| If one marks the rear tire to the "noise" spot and it is consistently at that spot, it is likely a bull gear tooth. The brake and bull pinion are at a different ratio and would never come up to the same "spot" on the tire time and time again. |