AuthorTopic: Brake pad failure  (Read 3613 times)

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Offline V8MoneyPit

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Brake pad failure
« on: June 24, 2010, 17:32:29 »
Last weekend at a play day I had the brake pedal go down further than normal. After pumping it, all seemed fine from then on. I thought is was muck getting in a pushing the pads away from the disc. Since then, I've noticed a grinding from the rear brakes. This might be why........



They've only been in 6 months and done less than 5000 miles. Looks like the friction material has parted company from the backing. However, the other inner pad is also near to the metal. The outer pads are more what you would expect from 5000 miles. i.e. hardly worn at all.

The calipers were rebuilt during the rebuild and the pistons are still perfectly good and free as you would expect.

Has anyone else experienced this?

It's an early Disco axle on a 90.

The only thing I can think of is that the drilling across both calipers is blocked. This would account for the inner pad doing all the work.  I didn't split the 2 halves when I rebuilt them but they were flushed out with clean brake fluid.
« Last Edit: June 24, 2010, 17:35:31 by V8MoneyPit »
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Offline Axetamer

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Re: Brake pad failure
« Reply #1 on: June 24, 2010, 21:19:26 »
My 90 eats pads, I've been to sibbertoft, where its a gritty sandy sort of place, and wrecked both front and back pads, which were new, in less than 4 hours, other places like avon dasset are a bit kinder but still consumes the pads at a frightening rate, I treat them as a consumable and on average only get around 16 hours in the dirt out of a full set, I use mintex front and back with crossdrilled and slotted discs and have stainless pistons in the calipers all round.

I do find that the inners tend to wear quicker than the outers, but I have no backing plates on any of the discs......playing in the dirt can be expensive, but then again when I was into match fishing I'd think nothing of throwing 40 quids worth of bait into a river in 5 hours.... so it horses for courses I suppose

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Offline topless matt

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Re: Brake pad failure
« Reply #2 on: June 24, 2010, 22:12:25 »
unlucky steve.
I find my inners wear a lot quicker than the outers and that dersingham does tend to eat the pads.
It is possible that as they wore down the sand just abraded what was left so see how you get on with another set, if the same happens again, then id start to wonder  :?
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Offline bogie

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Re: Brake pad failure
« Reply #3 on: June 24, 2010, 22:37:33 »
The inners always wear first!! I thought it might be down to the direct flow of the fluid and the fact that the pressure hasnt got to work around the caliper????? Interesting to know ???
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Offline topless matt

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Re: Brake pad failure
« Reply #4 on: June 25, 2010, 06:16:37 »
Inner pads always wear down first because they are less proteceted from the dirt and mud than the outer pads.
The hydraulic action of the pedal should make very minimal difference to contact timing and pressure of the pads on the disc.
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Offline Range Rover Blues

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Re: Brake pad failure
« Reply #5 on: June 25, 2010, 11:54:28 »
Agreed inners wear first, it's why they came from the factory with a disk shield.
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Offline V8MoneyPit

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Re: Brake pad failure
« Reply #6 on: June 25, 2010, 13:07:43 »
I'm just amazed at the rate of wear though  :shock:
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Offline topless matt

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Re: Brake pad failure
« Reply #7 on: June 25, 2010, 17:09:41 »
lol, you did go into the sandy mud pits tho  :lol: :lol: :lol:
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Offline Range Rover Blues

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Re: Brake pad failure
« Reply #8 on: June 27, 2010, 19:38:50 »
At least the Mintex ones are less than a tenner.
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Offline V8MoneyPit

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Re: Brake pad failure
« Reply #9 on: June 28, 2010, 16:26:05 »
At least the Mintex ones are less than a tenner.

True. But I had to get the job done the following day so I got a local factor to van some to me......
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Offline muddy90

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Re: Brake pad failure
« Reply #10 on: July 23, 2010, 22:46:10 »
mine is all ways in the mud and my pads last 2 or 3 years i only use dealer pads

Offline andrew2986

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Re: Brake pad failure
« Reply #11 on: July 24, 2010, 08:38:15 »
My V8Disco Auto eats rear pads. caught me out a few times now I check them all the time and as the chap before said, think of them as a consumable after an event.

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Offline Mark_Solesbury

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Re: Brake pad failure
« Reply #12 on: July 26, 2010, 20:41:32 »
My 300tdi 90 also eats rear pads.

But, it eats Mintex pads from Paddocks, so for less then a tenner, its what i expect really.
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Offline Saffy

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Re: Brake pad failure
« Reply #13 on: July 26, 2010, 20:50:58 »
Upcoming MOT so being going over truck and listing snags. Checked the rear pads on the 110 300tdi and found the inner with barely any mileage left on them. Checked the log book and I fitted them 3 years ago and over 20k miles - cheapy Mintex ones too. I am told I am a heavy footed late braking driver so on road the mintex have seen some abuse. Seen a fair bit of Wiltshire's lanes in that time too but although the flint in our soil slashes our tyres and the grinding paste mud eats bearings in alternators it seems it's gently on the brake pads.
« Last Edit: July 26, 2010, 20:53:24 by Saffy »
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Offline Mark_Solesbury

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Re: Brake pad failure
« Reply #14 on: July 26, 2010, 21:54:03 »
Strange how its different, mind i suppose 285 special tracks take a lot of stopping :)
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Offline Saffy

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Re: Brake pad failure
« Reply #15 on: July 26, 2010, 21:56:15 »
Strange how its different, mind i suppose 285 special tracks take a lot of stopping :)

im running special tracks too :D though not that big. Think if you in a sandstone area the pads will take a hit.
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Offline topless matt

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Re: Brake pad failure
« Reply #16 on: July 27, 2010, 17:51:47 »
Mine last about 4 months, very heavy with the pedals though  :oops:
And 35" creepy crawlers take some stopping, and a lot of time spent in mud and sand  :doh:
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