I just replaced my rubber flex lines on my 81 westy.  Bled them with one man
bleeder.

Prior to swapping the lines I was feeling a little "pulsing" in the brakes
when I stepped on the pedal.  No pumping was necessary.

Now, I am having to pump the brakes twice to have firm pedal.  The pedal
holds...it does not slowly go to the floor indicating a leak.

The pulsing is gone.

Rechecked lines for air the old fashioned way(driver pumping brakes and
pressure to pedal while I release bleeder) and verified no air..........just
clean fluid.

Any ideas?  Is there an adjustment to the rears?

Adam Puzerewski
81 westy
74 beetle
86 cabrio
Vanagon Partsmobiles