RC clutch pack fit b125
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=206988
Printed Date: 07 Jun 2025 at 4:03am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: RC clutch pack fit b125
Posted By: 55allis
Subject: RC clutch pack fit b125
Date Posted: 04 Jun 2025 at 11:12pm
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Got a b125 power unit on a 60A combine and was wondering what engine and clutch parts would interchange with a RC? Have a fellow member who has a nos RC clutch disk and pack and wondering if it would work on my b125? He also has an overhaul kit for a RC but pretty sure that will work. Thanks, Gavin ------------- 1955 AC WD45 diesel with D262 repower, 1949 AC WD45 |
Replies:
Posted By: DrAllis
Date Posted: 05 Jun 2025 at 6:28am
| An "RC" actually had a "C" engine, not a "B", so it is a little more HP. The flywheel is larger in diameter to meet the starter, so I assume the clutch and pressure plate are different too. |
Posted By: PaulB
Date Posted: 05 Jun 2025 at 7:03am
Funny that when an RC tractor was built, the model C did not exist. The engine used for the RC tractor (R code block) was a BE type block (which at that time was 116 CID) that was punched out to 125 CID, which at the beginning of the Model C production became the CE block that was now standard issue for all the B & C tractors. AS for the RC clutch disc, it has the 1-1/4" diameter WC center splines and is smaller than a WC disc , but larger in diameter than the B/C/P-U disc and is a unique part only used in the RC tractor. The RC flywheel is also a unique item that was only used in the RC tractor. ------------- If it was fun to pull in LOW gear, I could have a John Deere. Real pullers don't have speed limits. If you can't make it GO... make it SHINY |
DrAllis wrote:Posted By: DrAllis
Date Posted: 05 Jun 2025 at 7:16am
| I should have been more accurate. The 1939 RC had what was to essentially become the "C" engine introduced in 1940. The 125 cube version of A-C's small block engine. |
Posted By: 55allis
Date Posted: 05 Jun 2025 at 9:14am
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So the late RC would be the same? I think my b125 is a later one… ------------- 1955 AC WD45 diesel with D262 repower, 1949 AC WD45 |
Posted By: 55allis
Date Posted: 06 Jun 2025 at 8:54am
  Here is the RC one… The part number on the tag comes up as a for a C…. ------------- 1955 AC WD45 diesel with D262 repower, 1949 AC WD45 |
Posted By: PaulB
Date Posted: 06 Jun 2025 at 2:22pm
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Is that number 70216965? the parts book shows that number to be a Rockford pressure plate not the Auburn pressure you have pictured. What is the diameter of the driving surface? ------------- If it was fun to pull in LOW gear, I could have a John Deere. Real pullers don't have speed limits. If you can't make it GO... make it SHINY |