Bleeding the clutch - what am I doing wrong?

[Radek]

Hello listers.

Here's a suite to my Typ 89 clutch problem (a week or so ago the clutch
pedal stopped returning).  I installed a new master and a new slave cylinder
today.  I also replaced the rubber tube connecting the brake fluid reservoir
to the master cylinder.  I filled up the reservoir and started bleeding the
system.  Result:  still no clutch.  No resistance until about 3/4 of the
way.  The pedal stays down.  I can see two possibilities:  1) I didn't bleed
it properly and there is still air in the system, or 2) some other component
is defective.

1) I was bleeding the clutch like I would the brakes:  open the bleeder
screw, push the pedal down, close the screw, pull the pedal up, repeat.
Enough fluid went through to tell me there is no blockage.  I kept the
reservoir full so air wouldn't enter from the top.

2) as far as other components, the flexiblerubber part of the line that
connects the master and slave might be suspect.  I couldn't see any leaks
but when the pedal is depressed it seems to bulge and expand (I felt it with
my hand).  Another suspect could be the pedal return spring (it's not
pulling the pedal up).

What puzzles me is the almost total lack of resistance when pressing the
pedal down.   Correction, it produces some pressure at the end of the
pedal's travel and seems to be moving the clutch fork (I could hear it).  I
disconnected the pressure line at the slave fitting and put my finger on it
to plug it.  When my wife pressed the clutch pedal down, brake fluid would
push hard on my finger and spurt out.  However, every subsequent push on the
pedal would produce less and less pressure and less fluid would come out.
It's a brand new master cylinder so it must be good. I'm sure the clutch
itself is good too.

Heeelp!  I'm out of ideas.

Radek
1988 90Q
1991 V8Q 5-sp.