Faulty +2 servo?
Posted: Mon Jan 19, 2015 2:07 pm
My +2 has a Lockheed servo. I have rebuilt the master cylinder, bled the system, have no leaks, good discs & pads and a firm pedal.
When I gently apply the brakes at low speed, very little happens, then as I increase the pressure on the pedal, the brakes grab and the car stops abruptly. This isn't noticeable in the same way at higher road speeds as the tendency is to press the pedal harder anyway.
When braking from a higher speed and gently easing off the pedal pressure as the car comes to a halt, the brakes seem to behave correctly.
The standard servo test of switching the engine off with the brake pedal depressed results in the brake pedal sinking slightly - I believe this to be the correct sort of behaviour.
Could my symptoms be indicative of a faulty servo or is it more likely to be something else like a sticking caliper? - Any suggestions would be welcome.
Simon
When I gently apply the brakes at low speed, very little happens, then as I increase the pressure on the pedal, the brakes grab and the car stops abruptly. This isn't noticeable in the same way at higher road speeds as the tendency is to press the pedal harder anyway.
When braking from a higher speed and gently easing off the pedal pressure as the car comes to a halt, the brakes seem to behave correctly.
The standard servo test of switching the engine off with the brake pedal depressed results in the brake pedal sinking slightly - I believe this to be the correct sort of behaviour.
Could my symptoms be indicative of a faulty servo or is it more likely to be something else like a sticking caliper? - Any suggestions would be welcome.
Simon