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winter-hater club member
 
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what could cause the clutch pedal to become stuck in the "up" position?

like the title says. clutch went to the floor. clutch was pulled out by hand. clutch pedal is now stuck "up". fluid level in the reservoir is full. no leakage noted on the ground.
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Old 10-01-2008, 05:40 PM
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check your master cylinder at the firewall while someone trys to push the clutch in. See if you see a break in the firewall where the master cylinder is bolted in. Sometimes the firewall breaks there and pushes the entire master forward. May also be a siezed master cylinder push rod... take the c-clip off the clutch pedal and see if you can push the rod by hand...
Old 10-01-2008, 05:53 PM
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Could be slave cylinder too. Although my pedal never got stuck in the up position, it certainly went all the way to the floor with no return back to the up position. Replacing and bleeding the slave cylinder solved the problem.
Old 10-01-2008, 08:38 PM
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I replaced both at same time when mine got sucked to the floor..never had it where I couldn't push it though..just hope it isn't something mechanical in the clutch itself...
Old 10-02-2008, 03:48 AM
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Old 10-02-2008, 04:06 AM
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stuck slave cylinder, just fixed this on my son's car.
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Old 10-02-2008, 06:41 AM
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well, the slave cylinder is easy enough. this is on my friend's 85.5. i'll check it out.
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1988 white 951 - ingrid, 1999 Ducati 900ss CR - jezebel, 1996 Discovery, 2000 forester

PPOT: the sound of one hand clapping.
Old 10-02-2008, 07:06 AM
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the last time i was doing my clutch, the rod popped out of the cup in the fork, binding up and sticking the pedal at the top - if you blew your slave, or if the rod was gummy, it could have stuck in the rubber of the seal, and then gotten yanked out of the socket
Old 10-02-2008, 07:28 AM
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ok, this is sounding more and more like it is just the slave. pretty easy to check out and repair. thanks, guys.
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1988 white 951 - ingrid, 1999 Ducati 900ss CR - jezebel, 1996 Discovery, 2000 forester

PPOT: the sound of one hand clapping.
Old 10-02-2008, 07:38 AM
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I would suggest doing both master and slave at same time and the top clutch hose. When one fails the other is not far behind..
Old 10-02-2008, 10:15 AM
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good advice. thanks.
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1988 white 951 - ingrid, 1999 Ducati 900ss CR - jezebel, 1996 Discovery, 2000 forester

PPOT: the sound of one hand clapping.
Old 10-02-2008, 10:25 AM
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well, i got under the car today. the slave piston has pushed the clutch fork all the way to the wall of the bell housing, inside the little round window. i am thinking that the clutch fork is hosed in some way, either a pivot point is loose or it has slipped off of the throwout bearing.

any opinions?

i think the whole thing needs to come apart and get R&R'ed....
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PPOT: the sound of one hand clapping.
Old 10-11-2008, 04:15 PM
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did you take the slave cylinder out or just look in inspection hole?
Old 10-11-2008, 04:30 PM
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Nynor,

Good information from ballysdad.

I'll toss out a couple less than common ideas.
1. The TO bearing guide tube has cracked
2. One of the fork TO pivot points has worn down and like you thought-slipped
3. The needle bearings on the fork shaft are toast. Fork alignment shot.
4. Do you really want to know? No matter what inside is bad the job sucks.

I hope it is an easy fix. You'll get real irritated when the clutch job is finished and the rear engine flywheel seal drips. Just thinking out loud.

GL
John_AZ
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Old 10-11-2008, 05:05 PM
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i only looked in the inspection hole. the piston is fully extended and the clutch is engaged. this tells me that something inside the bellhousing has failed. it will all come apart and the seals will be replaced.
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1988 white 951 - ingrid, 1999 Ducati 900ss CR - jezebel, 1996 Discovery, 2000 forester

PPOT: the sound of one hand clapping.
Old 10-11-2008, 06:30 PM
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sorry to resurrect this thread....

this job has still not started.

after reading a recent writeup by techno duck, which was awesome, i thought of something else.

what if the lock nut came loose on the pivot shaft? i didn't even know that such a thing lived there.... from what i saw, the angle of the fork, etc., it seems plausible to me that the pivot has simple come out a bit.
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PPOT: the sound of one hand clapping.
Old 06-24-2009, 10:16 PM
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My guess is broken springs on the clutch disc, especially if the stock disc is in there with the 6 small springs.

The other possibility is a broken clutch fork.

If the lock nut n the pivot shaft came loose, the shaft could eventually work its way out. The clutch fork would essentially fall out in that case. The pedal would not be stuck though.. it should still have movement. I doubt this is your problem though.
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Old 06-24-2009, 11:21 PM
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it could be a broken clutch fork, but this happened kind of gradually.

i am thinking that the pin slipped and it is now at an odd angle, binding up the slave. i think the bottom end of the pin is still in place, but the top has slipped out.

i won't be able to get at it until sunday, at least.
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PPOT: the sound of one hand clapping.
Old 06-25-2009, 12:41 AM
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we got the starter and slave cylinder out of the way.

using a flashlight, it appears that the throwout bearing has come apart. regardless, the fork is working properly, but one can see that there is something that has come apart in front of the pressure plate. it all has to come apart.
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1988 white 951 - ingrid, 1999 Ducati 900ss CR - jezebel, 1996 Discovery, 2000 forester

PPOT: the sound of one hand clapping.
Old 06-28-2009, 07:56 PM
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