V8 Brake swap for UrQ - saga continues..

[George Selby]

At 01:57 PM 11/8/2010, you wrote:
>After repetitively bleeding the system - I now think there is 
>another problem or two.  I
>am fairly certain I have the air out of the lines, Master cyinder 
>and slave cylinders.
>I have gone through no less than 4 full liter containers of DOT 4 in 
>several attempts to
>remove the soft pedal.  Even though I got some air out in repeated 
>attempts using power
>bleeding and manual ( foot and other techniques), the brakes still 
>do not work.  Seems
>no matter what I do, I still have the same end result - spongy pedal 
>that provides
>little braking and continues to the floor with moderate pressure.

Sounds very familiar to my 76 Jeep CJ braking problem.  It originally 
had drum brakes all the way around, and I swapped to factory discs up 
front, including a MC.  Brakes were as spongy as ever, and the pedal 
stopped just before the floor, and it took extraordinary pressure to 
hold the Jeep still on any kind of hill.  Well, I finally solved the 
problem by adding in a new dual diaphragm brake booster and MC from a 
78 Ford F-150 (larger bore in the MC, and the booster provides more 
assist.)  Now my pedal is high, and rock hard, Jeep is safe to drive again.

George Selby