Thread: uneven rear brake pad wear

The plate over half the backing plate is an anti squeel plate and should not cause uneven wear. It essentially sticks the piston to the backing plate.

The retaining pins and housing should prevent leading edge/ trailing edge uneveness.

I would hazard a guess you need to put a seal/piston kit through the calipers and a new set of pads. Pistons may be grabbing and leading to the uneven wear and squeeling.

Steve

i reckon its probably piston related.......don't remove the unit-squeal plate

how uneven is the wear?

my tip is to only use land rover pads.........all my little went away when I change from aftermarket pads

sticking calpier OR a contaminated pad, usually the inside one gets oil on it and then the outer wears faster, it can also be caused by bad disc wear.

my moneys on sticking pistons in the caliper.


If yo

Thanks guys. I've got some new pads coming tomorrow from modern motors. On each pad the half that the anti squeal pad is on is the part that has worn away. I'll measure it when I replace them but it looks like about 2 maybe 3mm difference from front to back. Also the wear was in a diagonal. That is the outer pad was thinner at the front and the inner pad was thinner at the rear. Same on both sides. Thoughts?

Also the disks all round get really hot. Enough to make steam with a squirt of water. Is this normal?

Im still running with sticking pistons, possibly even jammed in the bore pistons... with a slight tilt they could apply angled pressure to the pads

Can you easily push the pistons back into the calipers?
My guess is no...

The brakes should not be getting hot as you report - more evidence that they are applied and not releasing due to sticking pistons.

Just this last weekend I overhauled all calipers and flex lines on my 130. The rear line was blocked (presumably delaminated internally) the rear brakes were thus stuck on and squeeling and heating up as you report.

I can highly recommend NOT just buying any caliper seals. The ones supplied to me were incorrect dimensions and failed to hold fluid. I am awaiting genuine seals from MR to re-do the job.

S

Originally Posted by Ryhoon

Also the disks all round get really hot. Enough to make steam with a squirt of water. Is this normal?

Yes discs get hot enough to turn water to steam. Very hot. You may still have a seized piston or caliper slide which may make it hotter than it should be.

Sent from my Motorola RAZR XT925

A sticking piston sounds expensive and unlikely if it's not binding. Check the calliper sliding bolts (if it has them) they usually get gunned up and stop the whole calliper moving freely. Also cheap pads can cause squeal. If the are too loose the vibrate and if they are too tight they bind. Check the seat of the pads to make sure they are free to move towards and away from the disc, not up and down!