Farm Equipment - D 17 Clutch

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D 17 Clutch

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=203795
Printed Date: 22 Nov 2024 at 8:28am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: D 17 Clutch

Posted By: Alberta Phil
Subject: D 17 Clutch
Date Posted: 23 Oct 2024 at 7:51pm

As I came up to the shop door and depressed the clutch pedal, I felt something fail inside the clutch housing. The pedal stays down and of course the clutch won't disengage! I think a split is in my future! What should I be looking for?

I'll get a lite and look up in the bellhousing tomorrow and see if I can see what failed. I put a new clutch in there about 5 or 6 years ago.

It's a '58 D17 on factory propane and probably my favorite tractor around here.

Replies:

Posted By: DrAllis
Date Posted: 23 Oct 2024 at 8:03pm

Bolt that clamps the two fork parts together loosened up and spread the parts apart.

Posted By: AaronSEIA
Date Posted: 24 Oct 2024 at 5:48am

On mine the shaft from the pedal will come out of the trunion nut. I have no idea how and it always threads back in. Dr Allis has said you can take a 1/2" fine thread bolt and weld it to the end of the shaft for new threads. Haven't done it yet.

AaronSEIA

Posted By: Alberta Phil
Date Posted: 24 Oct 2024 at 9:58am

I'll crawl under there today and see if I can see anything thru the access hole under the clutch.

Posted By: AaronSEIA
Date Posted: 25 Oct 2024 at 5:35am

If its the clutch rod like mine was, you can pull the pin at the clutch pedal and it'll fall right out. Was also obvious just moving the rod around where it went in the bellhousing.

AaronSEIA

Posted By: Alberta Phil
Date Posted: 25 Oct 2024 at 7:53pm

I got under and had a look today and it seems the sleeve that the throw out bearing rides on had turned and the round bosses that the release lever presses against were more into the open part, between the levers. I took a bar and turned the sleeve back to where it should be and the clutch works normally again. I don't know if it will stay or not.

Is there something to prevent that sleeve from turning? I've gone through my factory service manuals for the D17 and also the D19 and there is no detail on this.

Posted By: DrAllis
Date Posted: 26 Oct 2024 at 6:49am

As I said, the 3/8" fine thread bolt is loose allowing the "lever" parts to spread apart and the t.o. bearing sleeve to rotate. With some creativity, one can tighten the bolt/nut in chassis if I remember right. The problem area is to the left down very close to the clutch rod trunnion.

Posted By: Alberta Phil
Date Posted: 26 Oct 2024 at 9:57am

Thanks, Dr. I'll clean up the area and get a better light in there and see if I can get "creative"!

Posted By: Alberta Phil
Date Posted: 30 Oct 2024 at 6:13pm

I got in there today and it was an easy fix. I had to remove one of the bolts from the lower loader brace to swing it out of the way. I then pushed the clutch pedal down and braced it to the final drive housing to get better access and also to put some tension on the loose bolt to keep it from spinning. I then ran the nut up tight with my 3/8 impact gun, then double nutted it with a thin nut.

All done in half an hour! Thanks, Dr Allis!!

Posted By: DrAllis
Date Posted: 30 Oct 2024 at 6:14pm

All the years they made that design (1957 thru 1980) it always should have had a legit LOCKNUT on that bolt.

Posted By: Alberta Phil
Date Posted: 30 Oct 2024 at 6:51pm

The nut that was on there was a sort of lock nut with about six splits around it. I've run into them before in automotive applications and they are not great at "locking" unless they get really rusty!. If it comes loose again, I'll replace it with a new bolt and a fibre lock nut.