after its been standing say overnight,-with the drivers wheel jacked-up is the wheel free to rotate,or is it binding-it may be calliper slides siezed.was it a brand new calliper or s/hand one if the latter is piston/s free and not siezing ,is calliper mounting bracket not bent causing pad to bind,is brake pedal return spring ok and not broken,is linkage to servo [if fitted] free and not sticking causing build up of pressure,also are pads free in calliper and not rusted where they slide in.
k
January 2010