Having to tweak some things on my dad's 32 Cabriolet project that is now complete. He had installed a T 5 transmission on the back of his 53 flathead using a kit from somewhere. It uses the original cross shaft and clutch lever that is 3" long. It uses a typical slave cylinder that has roughly 1.5" travel. Unfortunately, with the throw out bearing touching the pressure plate, the clutch action is all in the bottom of the pedal travel. My thought is to shorten the clutch lever to 2" which would give oughly a third more travel in the clutch lever and hopefully allow for a gap between the pressure plate and bearing and move the clutch action closer to the middle of the pedal travel. Any thoughts on this would be appreciated. Thanks
I would say use a smaller bore slave cylinder or a larger bore master cylinder as shortening the throw arm might give you a hard pedal to push
Clutch lever = clutch fork? Shortening that will require more effort at the pedal. I messed with my pedal-arm pivot and moved it lower, which was a huge mistake. Post some pictures. Not the same application by far, but I read that the magic numbers for a hydraulic clutch was a 3/4' master and a 7/8" slave. Mine works easily, pedal pressure feels like any modern clutch ***embly.
If you have enough travel with the TO bearing to disengage the clutch, I would suggest changing the length of the push/pull rod on the lever arm, leaving the ratio the same. Is your push rod adjustable? Al Hook
My slave has an advertised travel of 1.25", in the end I needed 7/8" to 1" of fork movement. I got too fancy with complex compound linkage at the pedal, 3 weekends of machined parts that were useless.