MBar93 Posted November 22, 2014 Share Posted November 22, 2014 (edited) Hi everyone I recently bought an r33 skyline gtst, been loving it up until now. I was driving and suddenly I tried to change gears and the pedal stuck to the floor, and the clutch wouldn't disengage and I had to drive home without using the clutch pedal, resulting in a lot of grinding gears and struggling to get moving at traffic lights. I was thinking it might be something to do with the slave cylinder... anybody have any info? Has anybody else had this problem? Edited November 22, 2014 by MBar93 Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/ Share on other sites More sharing options...
GTR_JOEY Posted November 22, 2014 Share Posted November 22, 2014 Is there fluid in the master cylinder? Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7430555 Share on other sites More sharing options...
MBar93 Posted November 22, 2014 Author Share Posted November 22, 2014 (edited) Is there fluid in the master cylinder? EDIT: I was wrong, it's actually full I apologise for sounding pretty dumb, I've never had issues with clutches or hydraulic lines and cylinders with previous cars so I know next to nothing about that stuff haha Edited November 22, 2014 by MBar93 Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7430560 Share on other sites More sharing options...
scotty nm35 Posted November 22, 2014 Share Posted November 22, 2014 It most likely just needs a bleed, but that means the slave cylinder is probably rusted up internally. Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7430687 Share on other sites More sharing options...
MBar93 Posted November 27, 2014 Author Share Posted November 27, 2014 Okay so I changed the slave cylinder and bled the system... still no pressure in the clutch pedal. Any other suggestions? Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7433508 Share on other sites More sharing options...
Hadouken Posted November 27, 2014 Share Posted November 27, 2014 Do you get pressure in the clutch if you pump it? Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7433509 Share on other sites More sharing options...
MBar93 Posted November 27, 2014 Author Share Posted November 27, 2014 Do you get pressure in the clutch if you pump it? Nope, no pressure even when I pump it Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7433514 Share on other sites More sharing options...
Hadouken Posted November 27, 2014 Share Posted November 27, 2014 Any leaks? Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7433517 Share on other sites More sharing options...
MBar93 Posted November 27, 2014 Author Share Posted November 27, 2014 Any leaks? Pretty sure there's no leaks, we checked all the lines, and there's no fluid anywhere it shoudn't be Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7433522 Share on other sites More sharing options...
scotty nm35 Posted November 29, 2014 Share Posted November 29, 2014 The master cylinder may need to be adjusted for it's home position, but bleeding clutches without the Vac bleeder is very hit and miss from my experience. Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7434267 Share on other sites More sharing options...
blind_elk Posted November 29, 2014 Share Posted November 29, 2014 Don't know if its a problem in the 33s, but 32s are prone to the welds on the pedal box breaking. Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7434420 Share on other sites More sharing options...
jiffo Posted November 30, 2014 Share Posted November 30, 2014 So it was working OK, fluid level is correct and now it's not working. No fluid leaks on the concrete. Push type clutch? Unless you've destroyed the pressure plate, it has to be either master cylinder, broken pedal, broken throw out lever or perhaps pivot ball. The broken bits are easy items to check. The return spring arrangement on the Skyline goes over-centre at about half pedal, thus your pedal stays on the floor if there's a hydraulic problem. I don't waste time on brake/clutch hydraulics, simply buy a new master cylinder. Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7434468 Share on other sites More sharing options...
MBar93 Posted December 1, 2014 Author Share Posted December 1, 2014 So it was working OK, fluid level is correct and now it's not working. No fluid leaks on the concrete. Push type clutch? Unless you've destroyed the pressure plate, it has to be either master cylinder, broken pedal, broken throw out lever or perhaps pivot ball. The broken bits are easy items to check. The return spring arrangement on the Skyline goes over-centre at about half pedal, thus your pedal stays on the floor if there's a hydraulic problem. I don't waste time on brake/clutch hydraulics, simply buy a new master cylinder. How would I have destroyed the pressure plate? And how would I be able to tell if that is the problem? I'm hoping it's just the master cylinder, I'll get a new one and hope for the best Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7435203 Share on other sites More sharing options...
m.j.h Posted December 1, 2014 Share Posted December 1, 2014 Get someone to work the pedal while you check if the slave cyl is working If it doesn't move it's the master cyl if it does the problem is in the bell housing somewhere Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7435241 Share on other sites More sharing options...
MBar93 Posted December 4, 2014 Author Share Posted December 4, 2014 So I'm waiting for a new master cylinder to arrive, meanwhile I took the old one out, and with the resevoir still full I pumped it by hand and it made a gurgling noise and very little fluid came out at all. I take it this is a definite sign the master cylinder is the problem? Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7437458 Share on other sites More sharing options...
MBar93 Posted December 8, 2014 Author Share Posted December 8, 2014 I've swapped in the new master cylinder, and tried to bleed the system. There is a little pressure back in the clutch pedal, but I can't seem to get any more back. Is it just a case of there still being air in the system, and more bleeding required? Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7439678 Share on other sites More sharing options...
Hadouken Posted December 8, 2014 Share Posted December 8, 2014 If you have some pressure, then bleed more son. if bubbles keep coming the keep bleeding Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7439708 Share on other sites More sharing options...
m.j.h Posted December 8, 2014 Share Posted December 8, 2014 Are you bleeding at the slave cyl or the master cyl? Try cackling the outlet pipe of the master cyl and see if air comes out from there Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7439800 Share on other sites More sharing options...
MBar93 Posted December 9, 2014 Author Share Posted December 9, 2014 Are you bleeding at the slave cyl or the master cyl? Try cackling the outlet pipe of the master cyl and see if air comes out from there I've bled both. Only started to get a little bit of pressure after bleeding the master cylinder. I'll try the outlet pipe If you have some pressure, then bleed more son. if bubbles keep coming the keep bleeding There were no more bubbles coming out, just liquid... Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7440822 Share on other sites More sharing options...
scotty nm35 Posted December 9, 2014 Share Posted December 9, 2014 Buy a cheap vac bleeder, you will thank me later. Link to comment https://www.sau.com.au/forums/topic/450996-clutch-pedal-stuck-to-floor-cannot-change-gears-with-clutch/#findComment-7440827 Share on other sites More sharing options...
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