Clutch Problems.....Still!
Fleet Owner
Joined: Jul 2004
Posts: 27,287
Likes: 1,052
From: NM
Here are your pics...
I don't see anything wrong; but if the disc hub won't slide freely on the splines, the hub is likely no good.
If you put the trans up to the engine with no clutch parts, does it seat all the way?
I don't see anything wrong; but if the disc hub won't slide freely on the splines, the hub is likely no good.
If you put the trans up to the engine with no clutch parts, does it seat all the way?
Thread Starter
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Senior User
Joined: Sep 2011
Posts: 361
Likes: 0
From: PA, North of Pittsburgh
The disc hub slides free as could be on the input shaft however it does not slide all the way back to the bearing retainer. There is roughly a 1/2" gap from the hub to the bearing retainer. If it slid back a little further the disc would not be forced against the flywheel. Only other thing I can think of is either the clutch disc hub is too thick or the clutch disc itself is too thick. I will measure the disc thickness when I get home and let you know what it is. Whatever the problem is it is not allowing the disc to slide far enough back away from the motor and the disc never disengages. Was there a difference in clutch disc hubs from 10" to 11"?
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Senior User
Joined: Sep 2011
Posts: 361
Likes: 0
From: PA, North of Pittsburgh
Yeah, I'm pretty sure they are. The fingers of the clutch fork fit perfectly into the throw out bearing hub. My pressure plate doesn't look like the 1 pictured on the first page. My fingers don't have bolts in the end like that, my adjusting bolts are through the pressure plate on the side opposite the flywheel. Not sure if that matters or not. Dick, does that 3spd need a 10 or 11" clutch? My flywheel is drilled for both. My old column shift used the 11 so I bought the 11 for your floor shift. Could that mean anything?
Fleet Owner
Joined: Jul 2004
Posts: 27,287
Likes: 1,052
From: NM
The disc shouldn't need to slide any further back than shown below. Why it bottoms out on the splines without the PP in there is a mystery. Need a pic of the disc, sitting on the input shaft.
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Fleet Owner
Joined: Jul 2004
Posts: 27,287
Likes: 1,052
From: NM
Here are the pics Dave sent... the disc hub could be hitting the flywheel bolts?? Dave, can you tap the disc further on?
The finger bolts previously discussed are NOT the bolts I see. If you look at the pic I posted, most Long clutches have bolts on the ends of the fingers. Yours doesn't. The bolts there attach the finger pivots to the cover, make darn sure they are tight!
The finger bolts previously discussed are NOT the bolts I see. If you look at the pic I posted, most Long clutches have bolts on the ends of the fingers. Yours doesn't. The bolts there attach the finger pivots to the cover, make darn sure they are tight!
Logistics Pro
Joined: Apr 2010
Posts: 3,577
Likes: 29
From: Pekin, IL
Ok dumb question...Is the long part of the clutch disc hub supposed to be toward the tranny? I have never played with these older manual trannies.
Because flipping the disc 180 degrees would push the disc away from the flywheel.
Because flipping the disc 180 degrees would push the disc away from the flywheel.
Thread Starter
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Senior User
Joined: Sep 2011
Posts: 361
Likes: 0
From: PA, North of Pittsburgh
If you even tap the disc at all it gets wedged on the input shaft and is almost impossible to get off. Thats as far as it goes.
Ross, the second picture you posted....The little rivets between the springs do have wear marks on them like they were rubbing something on the flywheel. If you look at the one closest to the bottom of the picture you can see the outer edge of the rivet is worn. I put the disc on the alignment tool and back into the pilot bearing and it spun fine with no weird noises.
Lastly, I had the truck running in neutral and started it in gear. When starting it in gear the truck drove itself because the disc was forced against the flywheel. I found it weird that the Raybestos writing on the disc still looks as good as new. No wearing or scratching in the white ink. When the clutch pedal was pushed in the disc must have never moved a fraction of an inch to even slip or that writing would be gone. (Picture 2)
Ross, the second picture you posted....The little rivets between the springs do have wear marks on them like they were rubbing something on the flywheel. If you look at the one closest to the bottom of the picture you can see the outer edge of the rivet is worn. I put the disc on the alignment tool and back into the pilot bearing and it spun fine with no weird noises.
Lastly, I had the truck running in neutral and started it in gear. When starting it in gear the truck drove itself because the disc was forced against the flywheel. I found it weird that the Raybestos writing on the disc still looks as good as new. No wearing or scratching in the white ink. When the clutch pedal was pushed in the disc must have never moved a fraction of an inch to even slip or that writing would be gone. (Picture 2)
Logistics Pro
Joined: Apr 2010
Posts: 3,577
Likes: 29
From: Pekin, IL
Do you guys see what I am saying about turning it around? Just a simple thought.