Rich L Posted June 23, 2017 Share Posted June 23, 2017 Hi allMy 1500 spit (76) won't go into gear. It was fine, then started crunching into some gears now impossible to engage unless the engine isn't running. Actual engagement is very low on the pedal. No fluid leaks.Bled clutch. Was fine for a bit then started doing exacrly the same.I was about to change the slave but do you think it could be the master?Any advice appreciated.Many thanksRich Quote Link to comment Share on other sites More sharing options...
thescrapman Posted June 23, 2017 Share Posted June 23, 2017 check to see if the pivot pin has dropped out. On opposite side to the slave. Quote Link to comment Share on other sites More sharing options...
Rich L Posted June 23, 2017 Author Share Posted June 23, 2017 OK thanks. Can I see it from under the car? Quote Link to comment Share on other sites More sharing options...
Bitumen Boy Posted June 23, 2017 Share Posted June 23, 2017 Sounds like a duff master cylinder to me. Quote Link to comment Share on other sites More sharing options...
glang Posted June 23, 2017 Share Posted June 23, 2017 The only way a slave can fail hydraulically is by leaking fluid past the seal so if no leak there the problem could be with the master. Take off its cap and see what happens to the fluid level when you press the pedal. The secondary seal can pass so that instead of pumping fluid to the clutch its sent back into the reservoir.... Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted June 23, 2017 Share Posted June 23, 2017 Could be the slave also. If the seal is dying they sometimes draw a bit of air as they return, which can then be cured by bleeding. Usually show some sign of leakage though.Other possibility is that the master cylinder piston is not moving freely and is not fully returning, which effectively reduces it's stroke. Just had this issue on my car.Nick Quote Link to comment Share on other sites More sharing options...
DanM Posted June 23, 2017 Share Posted June 23, 2017 Also check the crankshaft pulley as the thrust washers can fall out allowing the crank to move forward too much which shows up as clutch mot disengaging properly. Check to see how much the crank pulley moves back and fore if more than a few thou this could be the problem. (happened to me on 2 cars and means an engine rebuild so I hope it's something else) Quote Link to comment Share on other sites More sharing options...
Rich L Posted June 23, 2017 Author Share Posted June 23, 2017 Thanks all. I'll check the thrust washer & pivot pin first. If hydralic I'll probably change both cylinders to be sure. They are both well old looking at them. Quote Link to comment Share on other sites More sharing options...
Richard B Posted June 23, 2017 Share Posted June 23, 2017 Quoted from Nick Jones Other possibility is that the master cylinder piston is not moving freely and is not fully returning, which effectively reduces it's stroke. Just had this issue on my car. Often caused by a broken spring inside the master cylinder. Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted June 23, 2017 Share Posted June 23, 2017 Quoted from Richard B Often caused by a broken spring inside the master cylinder. Indeed, though on mine it seems to be caused the seal swelling.Nick Quote Link to comment Share on other sites More sharing options...
heraldcoupe Posted June 24, 2017 Share Posted June 24, 2017 Quoted from Richard B Often caused by a broken spring inside the master cylinder. Which in turn is caused by a broken or missing pedal return spring, so the master spring has to do all the work,Cheers,Bill Quote Link to comment Share on other sites More sharing options...
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