Clutch Carnage
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=207840
Printed Date: 18 Aug 2025 at 12:02pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Clutch Carnage
Posted By: Les Kerf
Subject: Clutch Carnage
Date Posted: 17 Aug 2025 at 4:52pm
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Self inflicted, of course  I just hate when I do dumb things  We recently got the derelict Model C assembled enough to try to see if it would make some noise. The B-125 combine engine was stuck so we pulled the head and pan, got it freed up and did a basic valve job, we did not pull the pistons nor did we remove any bearing caps. Hand cranking resulted in no joy, and hand cranking to check compression showed VERY low compression, less than 45 psi on cylinders #1 & #4, less than 10 psi on #2 & #3. We then connected the derelict Model C to my other Model C via the flat belt pulleys, gave it a whirl and it fired right up! I immediately shoved the clutch forward to disconnect the tractors, trouble is, there was excessive looseness in the clutch pedal and the pedal slipped right past the physical stop on the torque tube, thus allowing the clutch rod to slam forward into the clutch fingers, instantly breaking them off of the pressure plate. Besides the obvious looseness in the clutch pedal, which I have since fixed by drilling out the holes and installing an oversize clutch pedal shaft, the clutch operating rod was too long, a previous owner having lengthened it by welding a bolt in it. I had to cut off about 5/8" to get it back to the correct length.   |
Replies:
Posted By: SteveM C/IL
Date Posted: 17 Aug 2025 at 5:59pm
| Don't you just love life lessons.... |
Posted By: Les Kerf
Date Posted: 17 Aug 2025 at 7:07pm
Yup!  I am probably the only person on the planet to have ever put this particular combination of errors together to create this problem in the past 80 years
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SteveM C/IL wrote:Posted By: Ed (Ont)
Date Posted: 17 Aug 2025 at 7:55pm
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That is the best story that we have heard here recently! Will make for some good laughs for your next shop get together!
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Posted By: steve(ill)
Date Posted: 17 Aug 2025 at 8:29pm
Normally the comments are "YEP... Been there Done that"........ but this time i think YOU got a Cherry !!  ------------- Like them all, but love the "B"s. |
Posted By: Les Kerf
Date Posted: 17 Aug 2025 at 9:24pm
Yup  On Page B-C - 30 of the shop manual it reads "Usually one or two threads extend through the yoke screw when properly adjusted. Make sure the clutch pedal strikes stop on side of torque tube." My 14 year old Grandson is my partner in grime on these projects; I told him that sometimes it is good to know how NOT to do things
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