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Brake disc help

Posted: Wed Jun 26, 2013 4:50 pm
by t1m130
Hi everyone

Can anybody tell me what would cause the front disc pad to only grip 2/3 of the disc and is it a problem?

Brakes feel fine with no pulling or anything.

Thanks

TimImage

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Re: Brake disc help

Posted: Wed Jun 26, 2013 6:30 pm
by Horizon
They could be the wrong pads ? If it has the same effect on both sides, if on one side only, if they are a two piston type caliper, maybe only one piston is working and the other is seized, Is it the same on both front discs?

Re: Brake disc help

Posted: Wed Jun 26, 2013 7:44 pm
by t1m130
Just on one side - front n/s.

Will give them a strip down ay the weekend and see whats going on.

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Re: Brake disc help

Posted: Wed Jun 26, 2013 8:51 pm
by amacman
Looks a bit weather beaten
Does the wind driven rain hit that side of the car , I have the same issues with a couple of cars if not used every day .
The pads will still grip on that surface as you can see in the pic but they will wear faster .
There trims available which fit on the inner rim . These will keep the weather out .
There is a UK supplier if you search

http://www.kleenwheels.com/kleen-wheels-dust-shields

Re: Brake disc help

Posted: Wed Jun 26, 2013 10:08 pm
by Sanj
Check the top Allen key bolt is in place and tight too.

Re: Brake disc help

Posted: Wed Jun 26, 2013 10:40 pm
by t1m130
Will do - thanks Sanj

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Re: Brake disc help

Posted: Thu Jun 27, 2013 2:37 pm
by Black X5
From the picture and the reflection across the whole usable diameter of the disc your pads ARE biting on the whole disc- now!

My guess is that the previous set of pads were jammed in the caliper- thus not fully making contact with the disc. New pads installed but disc not skimmed/ replaced. The pitting in the photo is below the level of the top surface of the disc.

It will eventually (after many thousands of miles) wear the disc down to an even level. Of course braking force on this side will not be as high as the opposite side- but barely noticeable.

I would measure the thickness of the disc and if within the limits have it skimmed.

Let us know how you get along.

HTH

Re: Brake disc help

Posted: Thu Jun 27, 2013 7:31 pm
by t1m130
Hi HTH

Thats good to know - very many thanks for your advice.

Will post how i get on

Tim

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Re: Brake disc help

Posted: Thu Jun 27, 2013 8:17 pm
by Black X5
No problem.

HTH = hope this helps! :))

Re: Brake disc help

Posted: Thu Jun 27, 2013 9:49 pm
by t1m130
Lol - thought HTH was a bit odd as a name! :-

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