@Troy Sloan posted:
I'm not sure if this applies to your bleeding problem, but I recently replaced a master cylinder and had a problem bleeding and getting good pedal pressure. Turned out that I just needed to adjust the rod, that presses the master cylinder piston (attached to the brake pedal). It was turned in so far that the pedal was almost to the floor before it even contacted the master cylinder piston. I turned it out so the pedal only had to be depressed about 1/4" inch before it started to press the MC piston. Then I rebled all four wheels and had a full pedal with great breaks.
The Bentley VW Service Manual tells you NOT to adjust that rod, that it comes pre-set from the factory, but then again, why make it adjustable if they don't want you to do it, right? I can bet you that the vast majority of these cars have been messed with in the last 40 plus years and more that the donor pans were rolling around.