Disco 2 O/S rear outer pad wearing out

Hi all
I've got a problem with the O/S rear brake pad outer one keeps wearing down and the brake disc getting hot.
I've stripped everything down piston doesn't seem to be siezed and the guide pins are free and copper greased up.
I have fitted new pads and it is still binding and getting hot is it a new caliper time?
I have noticed also when parked up the other side has slight play on the sliders where as the O/S is stiff as if it is not fully released.

Thanks Dave.

did yu check both pistons?

Thought there was only one big piston tbh

cons77 said:

Thought there was only one big piston tbh

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You do, you have floating calipers. Does your pistion push back in or does it wind back in like my Honda with the same calipers. If u have the wind back type I would make sure that with the pads out that the piston is full retracted replace the pads and pump the brake so the piston is in contact. and see what happens in the future. The problem is a sticking piston.

Ah! I was thinking Disco1 - does the caliper move freely on its pivot?

discool said:

You do, you have floating calipers. Does your pistion push back in or does it wind back in like my Honda with the same calipers. If u have the wind back type I would make sure that with the pads out that the piston is full retracted replace the pads and pump the brake so the piston is in contact. and see what happens in the future. The problem is a sticking piston.

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It's not a wind back piston,it's a push back piston but doesn't seem siezed when i have the big water pump pliers on it pushing it back in.

The Mad Hat Man said:

Ah! I was thinking Disco1 - does the caliper move freely on its pivot?

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It moves freely on the sliders when assembled but soon as you apply the footbrake it goes tight where as there should be a little movement from the caliper on the slide pins when footbrake is not applied.

ABS unit playing up?

Either that or could the sliders be bent?

David

"ABS unit playing up"

I'm interested for furture reference on how the abs would affect the wear on a single pad in a brake caliper.

Hmm my money is on a dodgy caliper, maybe the piston is partily siezed and not releasing off enough.
It cant be the sliders as these are free when built back together and the piston still pushed in and pads fitted,just thought it would wear both pads if the brake was binding.
I'm also intreseted in how you came to the conclusion the abs pump would be at fault as i can't see why this would be the problem also :confused2:

It was only a thought. I agree a fault with the caliper/slides is by far the most likely.

But from your description of the whole caliper seizing on once the pedal is pressed and not letting go - is there no way the modulator unit could cause this? I agree it would make both pads wear rather than just one however.

David Pye said:

It was only a thought. I agree a fault with the caliper/slides is by far the most likely.

But from your description of the whole caliper seizing on once the pedal is pressed and not letting go - is there no way the modulator unit could cause this? I agree it would make both pads wear rather than just one however.

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Eggsactly
Please engage brain before opperating mouth :doh:

David Pye said:

It was only a thought. I agree a fault with the caliper/slides is by far the most likely.

But from your description of the whole caliper seizing on once the pedal is pressed and not letting go - is there no way the modulator unit could cause this? I agree it would make both pads wear rather than just one however.

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Wot like i thought ide farted but i had sh$t myself :hysterically_laughi:hysterically_laughi sorta fought

discool said:

"ABS unit playing up"

I'm interested for furture reference on how the abs would affect the wear on a single pad in a brake caliper.

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On D2 its unlikely but in theory could happen.......by some eldritch reason the TC to work on that wheel.........wont hurt to scan the system.

hi check the pins as one of mine was sticking caused one pad to wear when checked found it to be bent also copper grease can make the rubber stick inside use a smear of grease on pins

tyler 1 said:

hi check the pins as one of mine was sticking caused one pad to wear when checked found it to be bent also copper grease can make the rubber stick inside use a smear of grease on pins

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That does sound like the possible cause,maybe one of the sliders being bent i think i will chance these fist as a matter of cause before shelling out on a caliper as this seems to be ok ,as the piston is not sticking.