Seals wern't in bad condition and think there may have been a slight leak so problem traced.
Caliper off, pistions out, new seals, new dust seals with retianers, new bleeders, coat of paint, change disk and re-assemble.
Simple ! . . . . . . . . Or is it to change the disc you have to take the wheel bearing and the hub off the stub axel.Having the right tool for the job makes it a lot easier. In this case a special clamp to hold the piston in place to allow you to press the other one out. Also thanks to a handy attachment it can also be used to press in the dust seal. Finished !
New drilled and groove discs to help with the heat and glazing. New ceramic EDC GreenStuff fast pads. New Braided hoses. Very sexy, even if I do say so myself.
Hopefully these will help stop quicker and also slow the heat build up from the million speed bumps at the Ranches.
Next . . . . . . Not sure but I see electrics in my future, not my favourite fix but a ongoing issue with any old British car.