1968 D10 Clutch Woes
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=190456
Printed Date: 18 Sep 2025 at 9:07pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 1968 D10 Clutch Woes
Posted By: KD8NGV
Subject: 1968 D10 Clutch Woes
Date Posted: 03 Sep 2022 at 5:42pm
Replies:
Posted By: Rick
Date Posted: 03 Sep 2022 at 6:14pm
| You need 1/4" between the throw out bearing and the clutch fingers...did you have any problem with aligning things back up when putting the clutch back in? It doesn't take much to bend or tweak the disc to where it's not flat as should be...try the re-adjusting thing first... |
Posted By: KD8NGV
Date Posted: 03 Sep 2022 at 6:30pm
|
After I put the tractor back together, I performed the clutch adjustment per the book. Ended with 1" of clearance from the clutch return pad and the platform. Gave me about 2" of pedal movement. I then took my camera and verified that the fingers of the pressure plate were not touching the bearing. All good. I did have a time trying to get the splines on both shafts to line up with the ones on the clutch and flywheel. I would try to push it in, release move the flywheel a bit and try again. Maybe I pushed too hard? I thought maybe I needed to adjust the fingers on the pressure plate, which I did to the point where there are no more threads left on the bolt. When I am at low idle the clutch stops moving when we push the pedal. At high idle it acts like it is slipping when you push in the pedal. I would think screwing in the adjustment bolts on the pressure plate to the max would allow for the max space between the pressure plate and the flywheel. Is my logic flawed? |
Posted By: DiyDave
Date Posted: 03 Sep 2022 at 7:02pm
|
Did you replace the pilot bushing? ------------- Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need! |
Posted By: KD8NGV
Date Posted: 03 Sep 2022 at 7:36pm
| I did not replace the pilot bushing. Think that might be it? |
Posted By: DiyDave
Date Posted: 03 Sep 2022 at 8:06pm
Possibly. Also might be that the shaft is scored, or the tranny input bearing is loose, or a combination of the 3. Good luck, though it means splitting again, to check! Take some pictures, we love pictures! ------------- Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need! |
Posted By: Rick
Date Posted: 04 Sep 2022 at 4:33am
| If you screwed the adjusting screws all the way clockwise, which it sounds like you did, then the fingers would be riding on the throw out bearing all of the time...I'm thinking a bent/warped disc...a split regardless. |
Posted By: WF owner
Date Posted: 04 Sep 2022 at 6:30am
| Are you sure the clutch disc is not in backwards? |
Posted By: KD8NGV
Date Posted: 04 Sep 2022 at 9:39am
|
The clutch disc has the longer part of the splined "hub" facing rearward. Sounds to me that I need to invest in some new parts. Clutch Pressure Plate Pilot bearing Anything else while I am in there? I can take some pictures when I get her split again. Maybe one of those things where someone else goes "Hey dummy, there's your problem." lol
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Posted By: Eric B
Date Posted: 05 Sep 2022 at 11:18am
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This happened with one of my old Allis tractors last week, it was a surprise to me. The clutch always worked perfect, then after the tractor had had minimal use over the summer I went to move the tractor and the gears would only grind. I had been aware of a slow trans. oil leak, I checked the oil level which was very low. After topping up the trans. with proper oil the gears stop immediately when depressing the clutch. Everything is perfect again (except for the slow trans. leak). You may want to also check your transmission oil level. ------------- Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal! |