My 1200 mile, newly restored 67 OTS brakes lockup when pushing the pedal hard. Brakes release shortly after engine shut down or when I reverse the car. Normal braking is OK. My restorer tried to fix but failed first time. I am on the road in S. CA this weekend and a little afraid of when they might lockup again. Any ideas how to fix this? If it happens repeatedly I will take vacuume hose off at mainifold and plug manifold.

Submitted by SE21-50092 on Wed, 05/25/2011 - 01:14

Thanks to JCNA TECH call on a Sat., George C advised to replace reaction diaphragm which I had xk's unlimited do on Mon. Problem solved, Hooray!!