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Clutch sticking on input shaft

6.7K views 12 replies 5 participants last post by  mm  
#1 ·
Hey everybody. I've searched and searched and can't find this exact problem, so here it is.

I think the clutch disk is sticking on the input shaft on my 87'. Its blown two slave cylinders out and when I put a new one in, it takes every ounce of strength in my leg to get the clutch to disengage. Aside from the fact that I probably bent something by forcing it so much, does anybody know of any tricks to get it to slide easier without pulling the transmission? I rebuilt the engine in 2007 but it only has about 6000 miles on it since. I think I put anti-seize on the input shaft when I put it together, but its been so long I can't remember. I use it as a farm truck, but I plan to start hauling water with it so its gonna get some more miles soon.

Sent from a wellsite in North Dakota
 
#2 · (Edited)
Actually that's the wrong symptom for a disc hanging up on the input shaft splines. When that happens pedal effort will be normal but the disc wants to hang against the flywheel so when idling the trans will grind going into a gear, etc. In other words the disc isn't fully releasing away from the pressure plate and flywheel.
The usual cause of high pedal effort is a buildup of crud on the trans front bearing retainer sleeve that the throw out bearing collar slides back and forth on. The slave cylinder and clutch fork have to be removed, then you have to reach in and lube/oil the sleeve and collar. Makes all the difference in the world as far as pedal effort goes.
Sent from a wellsite in North Dakota
Half the guys I know are working up there too. Complaining about everything except the paychecks.:lol:
 
#3 ·
when my clutch started having stiking problems, i thought that it might be the clutch or hydaoulic system so i replaced that and 1 day clutch quit working, and i found out that my fork was broken in half, replaced and all is well.
 
#4 ·
Oh, that makes sense. So I guess pulling the transmission is the only option?

Yeah, the oilfield is the way to go..lol. A lot of guys do gripe about being up here, and about all the hours. Lucky for me its really clicky up here. So I just keep my head down and my mouth shut...lol At least I try to... :banghead:

Sent from a wellsite in North Dakota
 
#5 · (Edited)
So I guess pulling the transmission is the only option?
Oh no, not at all. You gain access through the clutch fork hole in the bellhousing after you remove the fork and slave cylinder. Do you have the older 4 speed or ZF 5 speed? It's a major pain if you have the 5 speed due to the small clutch fork hole, if that's what you have, let me know and I'll let you know how I manage to get it lubed.
 
#6 · (Edited)
Sweet!! Yes, it's the 4-speed. I think its the T-19 :confused: I sheared the fulcrum pin for the reverse linkage the first time the clutch quit. And if I remember right that tranny is a T-19

Sent from a wellsite in North Dakota
 
#7 · (Edited)
OK, you can take this for what it's worth, I read it on an IDI forum some years ago. A couple guys have said that the bell housing clutch fork hole is big enough on the 4 speeds that you can reach in there with your hand. If that's the case that makes it a lot simpler.
You better hurry up, this good warm weather we're having won't last forever!:)
 
#8 ·
I'm not really built to fit into small places... lol, but I'll give it a shot. With the cold weather coming I'd really like to get a toggle put in for the glow plugs before it gets cold too.

I just checked your profile. I didn't realize you are in Cody. I really need to update my sig, I'm living over in Clark, a few miles north of Edelweiss...lol What is the weather like up there. I haven't been home in almost 9 weeks and it will probably be about 2 more weeks before I get back.

Sent from a wellsite in North Dakota
 
#9 ·
LMJD is right, its the throw-out hanging up on the sleeve. I used to drive a 450 that had this problem. I made a long straw to go in a can of carb cleaner and sprayed it out periodically through the fork hole. If you don't take care of it eventually you'll break the firewall.
 
#10 ·
I made a long straw to go in a can of carb cleaner and sprayed it out periodically through the fork hole.
That's a good idea. The hole is so small on my 5spd I have a #1157? taillight bulb and socket with long wires connected to the battery. Then I have to drop the light bulb into the bellhousing so I can see what I'm doing, then I lube the sleeve with a length of vacuum hose pushed onto the end of an oil squirt can. To make it worse, the FWD driveshaft is right in my line of vision. It's a pain and a Mickey Mouse way to do it but sure beats pulling the transmission.:lol:
I'm living over in Clark, a few miles north of Edelweiss...lol What is the weather like up there. I haven't been home in almost 9 weeks and it will probably be about 2 more weeks before I get back.
Holy Crap, what a small world, I know a few people in Clark, me and Von R. (who has the leather shop there) won the team branding at the Clark Rodeo some years back. The weather's been extra good, it's still really warm every day, 70+, and believe it or not, hardly any wind for more than a month. Still no summer afternoon thundershowers like we usually get so grazing land's been in a world of hurt and the price of hay is through the roof. A friend sold a couple semi loads heading out of state for $250/ton.
 
#11 ·
If all else fails, I noticed that there are two small openings in the top of the bell housing. If I can't get in there I guess Ill pull the panel and try to get it through the top.


Holy Crap, what a small world, I know a few people in Clark, me and Von R. (who has the leather shop there) won the team branding at the Clark Rodeo some years back. The weather's been extra good, it's still really warm every day, 70+, and believe it or not, hardly any wind for more than a month. Still no summer afternoon thundershowers like we usually get so grazing land's been in a world of hurt and the price of hay is through the roof. A friend sold a couple semi loads heading out of state for $250/ton.

It sure is!! I only moved to Clark last year, and I'm never home all that much... I only know about three people that live in Clark...:bang: I know quite a few people in Cody. I used to drive down every weekend when I was living in Billings.