Juddering brakes

bad driver · Post by **bad driver** » 10 May 2004, 21:05

But this has stumped me, judder is coming from the drivers side rear wheel, even on rollers you can see prssure goes up and down like a yoyo. Thats handbrake or brake pedal so not the compensators.
So far it has had, new shoes, new handbrake cable, new cylinder, new brake line, 6 different drums 2 of which were brand new.
I'm seriously running out of patience, I got 4 days left on my free re test, cars in a show at the end of the month and nothing seems to solve this problem.
Has anybody got any suggestions as to what is causing this?? The only thing left I can think of could be the drum back plate has got bent so shoes arent parallel to drum? Does this sound feasale though as surely it would just cause wear on one side of the pad??

Homer · Post by **Homer** » 10 May 2004, 22:40

I had something similar many years ago on a Reliant 3 wheeler. It was a bent wheel.

bad driver · Post by **bad driver** » 10 May 2004, 23:05

wheel shouldnt be bent, it was ok before and it hasnt been knocked at all. Was only re balanced recently as well and surely the balancing machine would pick it up.

bad driver · Post by **bad driver** » 10 May 2004, 23:07

Oh and, without the wheel it can be felt just turning drum by hand with an assisstant holding either the handbrake or the foot brake slightly on. The wheel is under pressure for 1/4 turn then not then repeat etc. It is exactly the same as if the drum is warped but I have took the drum off the other side which has ne probs and it does the same. Both drums are brand spanking new, havent even put 3 mile on them.

Post by **RichardW** » 11 May 2004, 16:54

Bent stub axle? Shoes (or other parts) floating about on the back plate so they are levered into a position where they no longer grip?