The whole catch seem to be that Alfa put a pretty soft spring inside the slave cylinder, which means that when youre trying to expel air of the cylinder you're just compressing the spring. The whole trick is to clamp the cylinder together with as little fluid in the slave cylinder as possible. Pressurizing the cylinder didn't do me any good. Besides the newish reservoirs have a level sender that's not very happy about accepting pressure to the reservoir.
Thank you Pascs, now you got me started....
Rule numero uno; push back the piston in the slave cylinder as far as it goes with some sort of locking pliers.
Numero Due; pressurize the brake fluid reservoir and open the bleeding screw on the clutch slave cylinder. Keeping the reservoir pressurized is paramount !!!
Leave the bleeding screw open until no air is visible through the vinyl bleeding hose attached to the bleeding screw
Close bleeding screw
Maintain pressure on reservoir
Have a mate pump the clutch pedal and keep it floored
Open and close bleed screw. Have mate pump the pedal a few times, keep reservoir presurized. Watch trough clear vinyl hose for any air coming out.
Repeat until pedal does not feel spongy.
Test drive and make sure reverse can be engaged most of the time without "brushing teeths"
MULTO IMPORTANTE: Never let the reservoir run dry, or you will have to start all over