Nissan Repair: The clutch, clutch slave cylinder, clutch master cylinder

Question
Hi,
I have a 1990 Nissan 300zx, and just recently my clutch gave out.
Everytime I step on the clutch, the clutch doesn't come back.  
I changed the clutch master cylinder and the clutch slave cylinder.
I went through the whole bleeding process... And same results,
the clutch doesn't come back. I want to know what might be or
is the problem.  Could it be the whole clutch set????
Thank you.

Answer
Edgar,

Bleeding the clutch is a difficult job.  If you have a vacuum bleeder or use the process of having someone keep the master cylinder full while someone opens the slave cylinder and allows the fluid to pour a bit.  Then, bleed the clutch.  Remember, that you will have to pull the pedal back up each time until pressure is developed.  Now, this is just to get the pedal to return properly and have sufficient pressure to depress the clutch.  It does take some time since air does not want to travel down through the system.