morning all. I thought my winter project was ready for MOT untill i finally filled and bled the brakes. New cylinders on the rear, new pistons and seals on the front, most of the pipe replaced, after sorting out all the leaks the pedal felt good n hard untill i started the engine, then pedal pulled down as it should about an inch on the servo, but under normal braking pressure, pedal slowly descends!! I checked for leaks but found none. Logical thought at this stage indicated master cylinder seals which i promptly ordered plus o/nite carriage. However, these have made no difference. Do i need a new master cylinder? I can see no obvious signs of wear in the bore but have no means of measuring. I can live with knackered engine and bodywork but i do need good brakes! thanks