davidpurton
Member
- Posts
- 13
- Location
- Herts
Hi, would be interested in some opinions based on other's experiences!
Always had great brakes on my S3, even with the 10" drums. I had replaced the servo, master cylinder, pipes, shoes, drums, cylinders and the twin circuit valve a few years back.
But I have a problem. At first the brakes work as they should with a short travel on the pedal before it becomes solid. The brakes lock on instantly and evenly .
The "servo" test light on the dash illuminates when tested with the ignition on...
But a second application of the brakes and the pedal, travelling the same distance as before, becomes hard as expected but the brakes are virtually ineffective, certainly not bringing the vehicle to a stop despite putting my full weight on the pedal.
Once the pedal is released, a further application and they work fine again until the "second" time they are used again and the "hard pedal/no brake" experience is repeated.
I am thinking servo/non return valve problems or break failure twin circuit valve but anybody on here had the same problems?
Thanks!
Always had great brakes on my S3, even with the 10" drums. I had replaced the servo, master cylinder, pipes, shoes, drums, cylinders and the twin circuit valve a few years back.
But I have a problem. At first the brakes work as they should with a short travel on the pedal before it becomes solid. The brakes lock on instantly and evenly .
The "servo" test light on the dash illuminates when tested with the ignition on...
But a second application of the brakes and the pedal, travelling the same distance as before, becomes hard as expected but the brakes are virtually ineffective, certainly not bringing the vehicle to a stop despite putting my full weight on the pedal.
Once the pedal is released, a further application and they work fine again until the "second" time they are used again and the "hard pedal/no brake" experience is repeated.
I am thinking servo/non return valve problems or break failure twin circuit valve but anybody on here had the same problems?
Thanks!