ProjectPanda13

I have been having an issue with 'pump up', very much like what DSM encounter with their clutches. Before driving, the clutch pedal is soft and engages low, but as I drive the pedal becomes stiffer and the engagement point moves higher up. When I adjust the pedal lower, like what the DSM guys do, I can feel the pressure release. But if I adjust it too low, I am not able to get into gear.

All this happened about a year ago when I did a clutch replacement. I installed a ClutchMasters FX350 along with a their lightweight steel flywheel. I also installed new pilot and throwout bearing, not to mention arp flywheel bolts. After the install, I had to adjust the clutch pedal further out since I couldn't get into gear. The next morning, I drove the car to work and I first encountered the stiff pedal. I played with the adjustment for a week before finding a decent length that didn't allow the pedal to get too stiff, but still stiffer, and drove it til now. I also have to pop the clutch pedal sometimes to be able to get into gear. I also installed a Nismo slave cylinder to see if it helps, but it didn't

Last night, after a long drive in traffic, my pedal lost all pressure and I had to pump the pedal multiple times to get pressure and also adjusted the pedal to the end of the rod. I made it home but with difficulty. I rebleed the system and have been able to drive it, but have to pop the clutch pedal more often now.

Any idea what it could be? I am going to attempt to replace the master cylinder to see if that will solve the problem. Anyone experience this on their car?

Sorry for the long explanation.

Thanks,
-Dave