That would sound like valves in the modulator to me or a problem with the ABS ECU , if the brakes free off when the pressure goes I doubt it can be the callipers.We’ve recently got my Soft Dash Classic moving again. However the brakes are sticking on. The brakes are off until the ABS pump pressurises the system, after which all 4 brakes lock on. After a leaving for a while the brakes are free again.
Has anyone come across this before?
I would unplug the abs unit and try the brakes again. If there is no sticking, you onto a winner!
If there is still sticking. Remove each caliper (but not from the car or braking system)
and inspect and grease the guides. Failing that squeeze each piston with a clamp and look for resistance.
If the whole system still has resistance then go back to the distribution block!
Haven’t done anything to it yet. Some of the brake pipes need replacing so will be replacing them before doing the bleeding again. I’ll definitely update this thread when I’ve found the time to do it.@T-C ,how did you get on?
Nice oneBrakes are now working!
For the benefit of those reading this in the future, I found someone else with the same problem on another forum. They had put the clevis pin on the brake pedal in the wrong hole. I suddenly remembered when I put mine back together, the brake lights were stuck on, so I assumed I’d got the wrong hole and changed it. Therefore my brakes were always slightly applied. With the pin in the correct hole the brakes are operating fine. Just need to adjust the brake light switch now.