1987 tq clutch pedal drops

[George Kotjarapoglus]

My clutch pedal was not fully returning when depressed.  I could still shift 
but halfway home, it was getting tough to get it in gear so I was used third 
gear and cautiously do a slow pass on stop signs.  Made it home, and that 
was it -- could not get it into any gear.  AAA towed it to my mechanic, who 
got in the car and the clutch and pedal were working fine.  After using it 
for a week, pedal was acting up again in a similir fashion.  He is good 
mechanic, and tells me the clutch and slave cyclinder are not the problem, 
and fluid level if fine, but not sure what it the problem is causing the 
pedal to not fully return.  Any wisdom would be appreciated
Thanks
George A. Kotjarapoglus
1987 tq
1990 t
1994 100q