I just put in a new clutch master cylinder and bled it with no problem. I'm pretty sure all the air is out of the line. I made no other adjustments to the linkage. The clutch pedal felt great. The problem is that it now feels great in the morning. It engages about 2/3 the way up but as the day goes on and it heats up, the pedal gets much more firm. It's really firm all the way to the top of the throw. It seems to be getting so stiff that it's partially disengaging the clutch (pulling plates apart) and it slips a bit. Any ideas?