Johnwahlberg Posted December 11, 2015 Share Posted December 11, 2015 Can any one help, I have just put in my spitfire 1500 a reconditioned gearbox, clutch set, thrust bearing, new slave and master cylinder and low and behold, can't get the clutch to work.Went over all the fluid avenues, even trying the old slave, then the old mc. I am convinced all is ok, I can manually with my trolley jack handle, take out slave cylinder, start the car and operate the clutch with a bit pressure, but when I put the slave cylinder back on, I can't get it to operate, the clutch pedal just disappears and no pressure, I have tried moving the slave cylinder forward as much as I can, but nothing works. Looking through the hole where the slave cylinder is all looks ok. Pin is not loose, the fork pin is also still in place as I can see this in the bell housing,Can anyone offer advice, I think I am going to have to take the gear back out next weekend, but not sure what to look for as it all looked fine on putting it in.I am pretty much a novice so any advice would be really appreciated.ThanksJohn Quote Link to comment Share on other sites More sharing options...
GT6 M Posted December 11, 2015 Share Posted December 11, 2015 I tek it that you have bled the Slave cyl!!M Quote Link to comment Share on other sites More sharing options...
Graham1 Posted December 11, 2015 Share Posted December 11, 2015 JohnPlease read my thread "Changing gear problem" in November this may help you as it lists majority of the problems. Hope it helps.Graham Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted December 11, 2015 Share Posted December 11, 2015 Bleed the clutch hydraulic system - the bleed nipple needs to be in the top hole!Nick Quote Link to comment Share on other sites More sharing options...
Johnwahlberg Posted December 11, 2015 Author Share Posted December 11, 2015 Hi mYes bled them a dozen times Quote Link to comment Share on other sites More sharing options...
Johnwahlberg Posted December 11, 2015 Author Share Posted December 11, 2015 Hi grahamI will check this tomorrow, I may have the bleed nipple on the bottom, I hope it's as simple as that, as I say fingers crossedThanksJohn Quote Link to comment Share on other sites More sharing options...
GT6 M Posted December 11, 2015 Share Posted December 11, 2015 So its bled, Is the car on the flat,if it aint, then air could still be init due inclination of hill!!have ye got the slave the right way up,!!one the MC, there is a rubber bit on the end of the push rod bit,this seals the outlet, so fuid is pushed down the pipeis the rubber bit on the end, its in the wee plastic bit on the end of the inside thing a ma jig,!!, cant for the life of me re recall what itis M Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted December 12, 2015 Share Posted December 12, 2015 I had this problem with the SpitThe slave wash pushed in as far as it would go as you say, but the clutch was operational There is a recess in the slave where the pinch bolt locates but will only mve so farI ground another min 1/2" of the end of the machined recess to allow the slave to go further in, thus allowing the pinch bolt to be further back in the recessIn effect you can do it with a longer operating pin Not had a problem since Quote Link to comment Share on other sites More sharing options...
Johnwahlberg Posted December 12, 2015 Author Share Posted December 12, 2015 Thanks for everyone's advice, you were all spot on, I had the bleed nut on the bottom, turned it the right way and hey presto all working, it's a big relief, so thanks for all your help, it's much appreciatedJohn Quote Link to comment Share on other sites More sharing options...
JHowland Posted April 9 Share Posted April 9 I made an account here specifically to thank the great folks on this post. I indeed had my bleed nut on the bottom, and was about to rip the engine and transmission back out thinking I had a clutch issue. Swapped the ports around and had a rock solid pedal in just a few minutes! 4 Quote Link to comment Share on other sites More sharing options...
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