Clutch question and help
Thread Starter
Pro
Joined: Jun 2015
Posts: 639
Likes: 28
From: Wytheville Virginia
Clutch question and help
So this past winter, I installed a new master clutch cylinder, it was developing a sticky clutch pedal feel, the car drives fine no clutch problems, until I rev the car up at a stop, then the pedal wants to stick, so this past week, I revved the car with several high rpms, and when I tried to engage the clutch to go forward, the pedal was soft and wouldn’t engage, so the car drifted back, did this a few times, I pulled the e-brake and worked the clutch pedal a few times, then regained tight pedal feel, then the clutch started engaging again. So what might be going on here? Is my clutch going? Please help. Thanks
Thread Starter
Pro
Joined: Jun 2015
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From: Wytheville Virginia
Drifting
Joined: Mar 2015
Posts: 1,421
Likes: 302
From: CSRA, SC
If that's all you did and didn't bleed the slave once they were connected, that's your problem. Im surprised it isn't worse. You have air in the hydros and you need to bleed the slave cylinder. I've heard of people being able to do it by removing the intake manifold but I'm skeptical myself. It's a big job to do it correctly if you don't have a remote bleeder valve.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
My thoughts are the SLAVE is trashed and failing. You can try bleeding the entire system. That's a last resort from the next logical step. " Clutch replacement" Some believe that there is built up clutch dust between the slave and the area on the Torque Tube Input Shaft where the slave slides. You could try washing that area out/flushing with solvent "BRAKE CLEANER" and see if that resolves the issue but the real cure is a new slave. With all the work/labor necessary to replace just the slave, it is more dollar wise to do all the clutch wear parts at the same time.
If it worth the time to experiment with the slave cylinder flushing and washing the dust out of the slave sliding parts, give it a GO and see what happens.
Bill
If it worth the time to experiment with the slave cylinder flushing and washing the dust out of the slave sliding parts, give it a GO and see what happens.
Bill
Drifting
Joined: Sep 2014
Posts: 1,924
Likes: 392
From: Atlanta - - - - - Save the manuals
If that's all you did and didn't bleed the slave once they were connected, that's your problem. Im surprised it isn't worse. You have air in the hydros and you need to bleed the slave cylinder. I've heard of people being able to do it by removing the intake manifold but I'm skeptical myself. It's a big job to do it correctly if you don't have a remote bleeder valve.
Last edited by Dutch08; Oct 2, 2020 at 12:32 PM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
You can also remove the intake manifold , lay over the engine and reach the bleeder at the back of the engine/bell housing. Sounds like a lot of work but, in reality, its pretty easy
Last edited by Bill Curlee; Oct 2, 2020 at 12:37 PM.
Drifting
Joined: Mar 2015
Posts: 1,421
Likes: 302
From: CSRA, SC
It's entirely possible that the slave is also bad but with a system full of air there is no way to demonstrate that. The system absolutely must be bled first. If it still doesn't work after being properly bled then that conclusion could be reasonably drawn at that point. The OP skipped a major fundamental step. 
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Thread Starter
Pro
Joined: Jun 2015
Posts: 639
Likes: 28
From: Wytheville Virginia
My thoughts are the SLAVE is trashed and failing. You can try bleeding the entire system. That's a last resort from the next logical step. " Clutch replacement" Some believe that there is built up clutch dust between the slave and the area on the Torque Tube Input Shaft where the slave slides. You could try washing that area out/flushing with solvent "BRAKE CLEANER" and see if that resolves the issue but the real cure is a new slave. With all the work/labor necessary to replace just the slave, it is more dollar wise to do all the clutch wear parts at the same time.
If it worth the time to experiment with the slave cylinder flushing and washing the dust out of the slave sliding parts, give it a GO and see what happens.
Bill
If it worth the time to experiment with the slave cylinder flushing and washing the dust out of the slave sliding parts, give it a GO and see what happens.
Bill