Poor Braking on 1990 Disco:

Hi everyone from a newcomer to the site.

I have recently aquired a 1990 disco1 and am currently getting it back to as it should be.One of my biggest bugbears thus far is the braking system which is very very poor at low revs but fine when at higher rev's.I have replaced the front brake pads as a matter of course {they were badly worn} and released the previously near solid pistons on the front calipers as they were quite far extended and had a little corrosion.That done i had hoped for better performance from the braking system.It was not to be..... so thinking logically i moved onto the vacuum pump.I have inspected the rotor blades within the pump and to be honest i can see very little difference between the "old" ones and the replacement set i pre-emptively bought.I did however change the "o" ring as it was well flat. I have also gone around the hoses with warm soapy water to rule out any leakage.Should i now assume that the servo is the culprit.

I would really grateful for any pointers guys and gals.One is about to reach the end of ones rope.

Thx in anticipation and keep up the good work Ö¿Ö

A couple of easy checks to test if the servo is working.

1 With the engine turned off, pump the footbrake 4 or 5 times, then hold your foot on the pedal and start the engine, if the pedal travels a short distance the servo is working.

2 Disconnect the pipe from the vacuum pump where it goes into the servo, start the engine and put your finger on the end of the hose, and check for suction.

No 1 will check if the pump and the servo are working and No 2 will check the pump itself.

Roye