Thanks for the replies guys. Redfastback, the pedal would actualy get sucked to the floor when I fired the engine up. When I removed the vaccume hose from the booster I could see the linkage moving back to its original position slowly. but when I reattatched the vacume hose the linkage/pedal would get sucked in quite fast.
Since then I have striped the booster down again and inspected it, rebuilt it as there is no signs of damage and now I have assisted brakes again.........to a point. The pedal works fine most of the way through its travel but if I brake hard the pedal will get sucked to the floor and i have to slide my foot uner it and lift it from the floor. Its the same at junctions, good braking force then the pedal will get sucked to the floor.
How do I go about converting the Brake system to manual? I have the KH four pot's at the front with the 11" HD drums at the rear.
