[Mgs] Jaguar XK 150 Brakes

[Paul Hunt]

Got to be something else, if they are clamped on *immediately* after 
bleeding, but I can't imagine what.  If the push-rod is too long, preventing 
the master piston coming back far enough to clear the bypass hole, that can 
certainly cause the brakes to stick on, but only when they have got hot and 
the fluid has expanded and has nowhere else to go except into the calipers 
and cylinders.  Simply opening one bleed nipple in each circuit to release 
the pressure is enough to diagnose that.  Another cause of this is if there 
is a mechanical brake light switch and that is adjusted too far towards the 
brake pedal, which also prevents the pedal coming back far enough.

PaulH.

----- Original Message ----- 
> The master cylinder rod is too long, not allowing the brakes to release.
> Unbolt the master and the brakes should release.  If they do, this 
> confirms
> the diagnosis.

>> Brakes will not release and remain firmly clamped on discs after 
>> bleeding.
>> The car won't even move.  Is the problem not having the servo hooked up 
>> or
>> related to the adjustment of the master cylinder rod?