My clutch pedal is sticking part way up and then suddenly releasing on a dual disc clutch. This only happens with the engine running and not with the engine off. Thought was that the throwout bearing was going too far and then catching, but wouldn't that be true even with the engine off? I have the stock Pantera clutch cylinders i.e no hydraulic bearing.
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Is the clutch new or have you had it for a while? If you've had it for a while, has it always stuck half way up? Have you checked your clutch pedal to M/C linkage, particularly the effort reduction kit. It isn't unusual for the holes in the linkage to wear badly.
If your car has the factory clutch effort reduction setup (the early Panteras did not), the photo below shows where the wear happens. It is a difficult area of the car to work on and it might be easier to to pull the pedal box than to try to do it in the car. In either case the first thing I do when working on the pedal box is remove the driver seat for better access.
It was working fine before my engine and clutch swap. Then about 200 miles later it was intermittent.
The clutch is a multi-disc weber about 12-15 years old with 200 miles on it. New McLeod Pantera specific adjustable TO bearing was installed and problem persists. Possibly TO bearing not shimmed correctly though.
If the problem is in the pedal box then why would it only show when the engine is running? When the engine is off everything is smooth.
The McLeod adjustable TOB ,while a very nice piece, does not feature a grease retaining groove in the ID of the carrier where it slides over the bearing retainer sleeve. Compare it to the stock version and you 'll see the difference.
I use this bearing often but always add a groove to the ID.
Ron
There’s this old thread discussing a similar condition…
Anyway I am unable to link it up on my phone, But it was titled “Throwout Bearing”, and it was by Panterachris, from back in 2015.
I found it by searching on the word “galling”, and then scrolling about halfway down the page.
Rocky
Rocky, I too am unable to link a forum page while using my iPhone. I click the copy choice, but there is nothing to paste.
my workaround is to send the page link to myself as a text message. That text message link is able to be copied and pasted into a forum post.
Larry
Thanks Rocky. My mechanic says that it appears to be moving freely on the collar.
Thanks for the tip, Larry. I have the exact same problem.
Dave good luck on knocking this one out!
Rocky (a.k.a. Chuck)
I am Rocky because I have a Toyota FJ 40 Land Cruiser, and that was my truck’s name, and became my name on the LC Forum.
It has carried over to all my vehicles and my participation on the Internet
