trans noise when in nutral
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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=130639
Printed Date: 05 May 2025 at 5:55am
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Topic: trans noise when in nutral
Posted By: john2189
Subject: trans noise when in nutral
Date Posted: 30 Oct 2016 at 1:43pm
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I think i have a bearing going bad in a B transmission. can I change it thru the shifter plate on the side? or do I have to pull the finals and remove trans from the torque tube? I dont hear the noise when its in gear and the tractor moving.
John
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'41 Allis B
'45 Allis B
'49 Farmall Cub
'72 IH Cub
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Replies:
Posted By: Alberta Phil
Date Posted: 30 Oct 2016 at 2:49pm
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Sounds like it might be the throw out bearing. Easiest is just split the tractor at engine/bellhousing.
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Posted By: john2189
Date Posted: 30 Oct 2016 at 2:52pm
I didnt think of that, but wouldnt it be noisy if i held in the clutch? it goes away when i hold the clutch in
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'41 Allis B
'45 Allis B
'49 Farmall Cub
'72 IH Cub
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Posted By: rpropst
Date Posted: 30 Oct 2016 at 4:44pm
If it is a transmission bearing. The top shaft can be removed by removing PTO housing and disconnect torque tube from transmission.
Remove bearing retainer and shift forks. Drive shaft
out the front.
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1950 snap coupler B 1948 WD 1951Ca 1952B 1952adjustable axel B
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Posted By: wbecker
Date Posted: 30 Oct 2016 at 4:46pm
The through out bearing should be doing nothing with your foot off the clutch pedal.
Sounds like loose transmission main shaft bearings are loose, not at all uncommon.
You will need to remove the trans to replace or tighten the bearings.
However it could run that way for a long time without hurting anything, in my opinion.
Bill B
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Allis B, IB, Low B, G, D10, JD M, 8KCAB, C152
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Posted By: DiyDave
Date Posted: 30 Oct 2016 at 6:03pm
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Might also be a pilot bearing, making the noise, but I can't remember what the b has. Try this: Shift to N, then step on clutch, if noise goes away when you release clutch, TO bearing is bad, if noise goes away, when you step ON clutch, its the pilot, or tranny brgs...
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Posted By: john2189
Date Posted: 31 Oct 2016 at 9:43pm
thanks all but it sounds to be in the trans area,not the bell housing. I guess ill take it apart this winter
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'41 Allis B
'45 Allis B
'49 Farmall Cub
'72 IH Cub
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