When I bleed the brakes as it says to in the work shop manual I get good front brakes but no rears, If I swop the pipes coming out of the servo lets say the pipe nearest the front of the car [passanger side] with the middle pipe [rear brakes ] and switch on the pump I get good rear brakes with pump pressure after bleeding, this leaves me with both back brakes working and the driverside working but no passanger side brake.
I thought it was the servo unit so I replaced it with another and the pump.