Cheers for that JayOriginally posted by JayGemson
The mounting bolts for the servo and the brake lines on the cav servo all line up with the nova. the piston rod in the back of the cav servo is too long and keeps the brakes on!
to get round this you can mount the servo on spacers, or shorten the piston road (which is what we did).
when complete the effect is dramatic, much improved pedal response (less travel, more feel).