Hi I'm having some serious issues with brakes. Originally they did the same in my old car with rear discs too and now I've put engine brakes servo master cylinder etc in another car. The master cylinder was knackered on old car so I replaced on new car. It's had 4 new brake likes from front to back and used a master cylinder with 4 outlets. Using Mondeo calipers and 300mm discs with the RS turbo drums on back. No compensators in line at back.
Anyways I'll be driving along say around our town and the brakes will start getting harder and harder until I get to a point where it's undriveable, the pedal will lock solid and even with engine off its still solid. Give it 3-4 mins and take pipe from servo off to relieve pressure and it frees brakes. Then it starts doing it again? I went classic ford and it was fine on way there but as soon as I start using the brakes more once off motorway it starts locking tight again. It's all brakes too not just one. I've run out of ideas now and even adjusted the servo pin but still does it. Anyone have an ideas cheeRS