Check the vacuum line from the booster to the manifold for fluid.

Park it indoors and lay dry cardboard under all the tires the booster, master and any joints with Tee or other fittings. Look for stains on the cardboard.

Get someone to hold the brakes down hard with the engine running to maximize the pressure in the system and trace all the lines for leaks.


Mac :{)

1962 K10 short step side, much modified for rally
1969 T50 fire truck, almost nos, needs a few things