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Clutch Pedal

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why

Jedi Trainee
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'67 Etype Series I, occassionaly, oh maybe every 50 clutch pushes it seems to go very easily to the floor, on a few such occasions, lever won't move out of gear, Fluid level in resevoir not changed in years. Yesterday happened turning from street to go up steep drive, clutch went easy to floor, lever would not move out of third (?role of car on slope in binding gears), with clutch still in turned key off, lever to neutral, started car, clutch fine, went up hill to garage, pumped pedal a dozen times, no fluid on floor, resevoir still up. Bad back made getting under to look for fluid coming into footwell not worth bother in light of resevoir level. Any thoughts? Since no fluid disappearing, makes rebuid of master and or slave?
Thanks, Jay
 
Probably master cylinder, but why not try a thorough flush and bleed and see what happens? For best results, ALL brake fluid in All cars should be changed every couple of years. The fluid absorbs moisture from the air, and it deteriorates. A good flush and fill may cure your issue, if not, well rebuilds are easy and cheap....
 
Must concur. Master is the likely culprit.
 
I agree but I'd be prepared to change the slave cyl. too unless the bore is perfect . Its just too much of a pain on an E-type and a slave cyl slow to release is hard on the E-type clutch , unless you really want to put a clutch in....
 
Yep, probably a failing seal. Had one years ago the went from working fine to not working at all in the course of driving home from work.
 
thank you all for the comments, but what I can not understand is how the piston with its rubber seal can slide forward and not impact the slave sufficient to open the clutch and yet there is no sign of the fluid coming out anywhere, does not the seal either compress the fluid forward or it leaks backwards past the seal and leaks into the footwell, and after umpteen years of this should not the resevoir show a loss of fluid.
P.S. do not want to start this up again but I am a believer that brake fluid should not be changed unless a leak, and after many cars, typically they go at least 15 years without a leak. Daily drivers at least 6 at 70,000mi and never a leak, 7 old English cars, the jag for example after my owning it for 25 years, at year 18 had a slight leak in 1 rear caliper, put on the all stainless to never have to do that again. I know this very contentious but this is my experience and the experience of many others as well. The leaks I have had are just the slightest of ooze, noticed only when going to rotate tires, no fluid even makes it to the ground. Nice firm pedal always
 
Your logical conclusion that the hydraulics are fine since you don't have any fluid leaks is brilliant to say the least. I wouldn't worry about it. Hopefully the same thing doesn't happen to your brake pedal.
 
the front seal is leeking on the pistion in the master
the rear seal is not!!! (no leeks ) on the front the is a set of small holes on the piston the feed the lower part of the master it also has a washer to help with the seat and also lets it feed the front part of the master
this is where your problem is replace the master
 
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