CA Coasting Transmission/Transaxle Noise
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=212155
Printed Date: 17 Sep 2026 at 7:49pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: CA Coasting Transmission/Transaxle Noise
Posted By: dfwallis
Subject: CA Coasting Transmission/Transaxle Noise
Date Posted: 04 Sep 2026 at 3:01pm
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I've noticed a slight increase in clanging noises from the transmission/transaxle when coasting. Seems like there is extra play (or more than I remember) in 3rd gear. Should I be worried? I'm referring to when the engine applies force versus when the coasting exceeds the gear speed. When pulling I don't notice any issues or after the clange ends when coasting I don't notice any issues (it is literally a clange). ------------- 1952 CA13092, CA Pickup Plow, CA Cultivator, CA Two Row Planter, Dunham-Lehr GC78 Disc, Grader Blade, 3pt Fm180 Finish Mower |
Replies:
Posted By: steve(ill)
Date Posted: 04 Sep 2026 at 3:37pm
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two of my Bs do that... I think its slop/ backlash in the final drive bull gear.. You hear it when roading and going down hill, when the engine is not loading the gears. ------------- Like them all, but love the "B"s. |
Posted By: dfwallis
Date Posted: 04 Sep 2026 at 3:44pm
I hope so. Would not be happy to have to take it apart again so soon :( ------------- 1952 CA13092, CA Pickup Plow, CA Cultivator, CA Two Row Planter, Dunham-Lehr GC78 Disc, Grader Blade, 3pt Fm180 Finish Mower |
steve(ill) wrote:Posted By: steve(ill)
Date Posted: 04 Sep 2026 at 3:47pm
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jack up the tractor so your 2 inches off the ground on one tire. leave the tractor in gear.... push IN and OUt on the tire and see that you dont have any bearing slop on the bull shaft ... rotate the tire forward and back and see how much BACKLASH you have in the gears.. ------------- Like them all, but love the "B"s. |
Posted By: dfwallis
Date Posted: 04 Sep 2026 at 4:01pm
Check ------------- 1952 CA13092, CA Pickup Plow, CA Cultivator, CA Two Row Planter, Dunham-Lehr GC78 Disc, Grader Blade, 3pt Fm180 Finish Mower |
Posted By: Les Kerf
Date Posted: 04 Sep 2026 at 7:40pm
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My Model C that I call 'Little Alice' was whining while coasting downhill, upon checking the finals for slop there is excess play in the right hand bull gear bearing, so it is out of service until I can get to it (maybe this winter). |