rear brake calipers

barry · 18-10-12, 02:59 PM

can anyone offer me some advice please.
i having problems with my handbrake on my mg zs 2002 1.8 car creeps forward or backwards on slopes.i've fitted new handbrake cables,then new calipers and pads.can anyone tell me how to reset the calipers if the handbrake has been connected and pulled up.i can get the rear brakes working ok but with no handbrake.i've tried winding pistons on calipers all the way back in but not sure if i have to turn them out a bit.
i lost the paper work that came with the new calipers.
thankyou barry.

peterzs · 18-10-12, 03:04 PM

I did a search and found this.

http://www.themgzs.co.uk/vb/showthre...ake+adjustment

dont know if this will help

Captain Peanut · 18-10-12, 03:06 PM

If I remember correctly the calipers should self adjust.

How many clicks is it to get the handbrake fully on? It may be that it needs adjusting near the handbrake, you can get to the adjuster by removing the rear ashtray.

barry · 18-10-12, 04:22 PM

thanks for reply.i've tried to adjust it from rear of ashtray,but no matter how i try the handbrake lever on top of caliper will turn to i'ts stop but it won't push the piston out to squeeze pads on.if the brake pedal is used then the calipers work fine.

petet16 · 18-10-12, 04:54 PM

Before you started did you wind the adjuster in the centre console right back, and ensure that the levers on the calipers are fully against their stops, you may need to disconnect the cables at the caliper end to check this, also when the piston is wound fully in the slots on the piston should be straight up and down and make sure the peg on the back of the pad engages in the slot, then pull the handbrake up one click and wind the adjuster until you can just feel the pads starting to drag.

POMPSKI · 18-10-12, 05:03 PM

Does sound like the pegs are not located properly tbh

petet16 · 18-10-12, 05:04 PM

Here's a couple of pics of the slots in the piston, and also the lever on the caliper against its stop.

Maxxed_Ross · 18-10-12, 05:07 PM

so that's what a new one looks like!

barry · 18-10-12, 05:31 PM

yes i did unwind the adjuster inside and made sure slots were in the right place and took cable pins out at caliper end.the paperwork i got with calipers said "do not connect handbrake cables untill the foot pedal is set and system bled"
the bit i can't remember is what to do if handbrake is connected and used before piston is set by foot brake.

petet16 · 18-10-12, 05:48 PM

I have a feeling you may have to remove the return spring and levers on the calipers and wind handbrake mechanism on the caliper to reset it.