car is pulling to n/s whilst mobile & noticed a definite pull when braking. my guess is a seized caliper . - is there a way to tell or will i have to go on a rolling machine ?
Checking this if you suspect the caliper is easier to do than to explain.
Short answer is: Piston should be free to move in caliper. Caliper should be free to move on caliper hanger. I use the term 'free' loosely as I've made a general assumption that you have mechanical knowledge (no offence intended).
A basic check for a seized caliper
piston is to remove the wheel and lever the disc pad outwards away from the disc on the caliper piston side. If the piston can be levered back in to the caliper, then press the brake pedal until the piston pushes the pad against the disc again. If the piston returns to its correct position, the piston is free. A basic check for seized
caliper sliders is to lever the piston side pad outwards as before and then use a clamp and a bit of wood to clamp the caliper against the caliper carrier. You should be able to see the concertina rubbers on the carrier extend or contract depending on whether you are clamping or levering. Should move because of the space created by the retracted pad.
This advice is based on an assumption that you are familiar with using the bleed nipple to aid pad retraction.
See, I could have done it by the time I wrote this.
Hope this makes sense.
HTH
Regards
Alan
Author
Topic: seized brake caliper (Read 1066 times)