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Author Topic: GPA Brembro brakes...  (Read 17724 times)

gillardy

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GPA Brembro brakes...
« on: November 27, 2008, 11:10:40 am »
hi, we have had our GPA for couple of months now... and the brakes are still squealing like a pig... anyone else had the same   problem.. ? what can be done about it.. ??

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    Old Boy

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    Re: GPA Brembro brakes...
    « Reply #1 on: November 27, 2008, 11:36:49 am »
    It's a feature of the pad composition &/or pad fit.

    Pads are Ferodo and are more aggressive than normal road pads.  More akin to race pads, which put performance higher than quietness.  If you think they queal too much you should try proper race pads and race spec disks.  They make an awful racket on light applications.

    If you really don't like it then you could try the following to dampen the vibration:

    Put copperslip on the backs of the pads.

    or

    Put rubber anti-squeal shims on the back of the pads.

    These could however affect the feel of the peddle (making it squishier).

    You could always change pads to something softer like Greenstuff (if they do them), but be prepared to lose brake performance if you do.

     :)

    Offline John501

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    Re: GPA Brembro brakes...
    « Reply #2 on: November 27, 2008, 11:51:32 am »
    Book your car into the service department. If the brakes have done more than 1000 miles and have not stopped making the noise, then the back of the pads need some copper slip and that should improve the noise. As Old Boy says, because they are more of a racing disc and pads, they will be noisier than standard road car.
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    magicmole

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    Re: GPA Brembro brakes...
    « Reply #3 on: November 27, 2008, 12:10:20 pm »
    2900 miles and my brakes still squeal as well when cold.

    If i can get some heat into them, no problem, but as soon as I'm stuck in traffic, the disks cool and the squealing is back with a vengeance. Of course you can't give the brakes a good dab in traffic because they are so powerful.

    My car's in the dealers next Saturday to have my Ragazzon exhaust fitted and they'll have another look at the brakes then.

    Where do you get these rubber shims from? Is that the correct term for them?
    « Last Edit: November 27, 2008, 02:33:09 pm by magicmole »

    Offline John501

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    Re: GPA Brembro brakes...
    « Reply #4 on: November 27, 2008, 12:18:46 pm »
    I dont think you need to worry about shims, just a dab of good old fashioned copper slip should make the difference.
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    magicmole

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    Re: GPA Brembro brakes...
    « Reply #5 on: November 27, 2008, 02:35:56 pm »
    Especially if applied to the brake discs. ;D

    I once arrived at Charlie Browns just in time to stop one of their monkeys adding brake fluid to the radiator header tank.

    My fault, of course, for going to Charlie Browns in the first instance. It was an emergency. Also the last time.

    Offline John501

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    Re: GPA Brembro brakes...
    « Reply #6 on: November 27, 2008, 02:49:47 pm »
     ;D You are right though, apply the copper slip to the discs and you'll never need to worry about the brakes squeel again!!
    (disclaimer. Please DO NOT apply copper slip to your brake discs, it may result in injury or death.)
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    gillardy

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    Re: GPA Brembro brakes...
    « Reply #7 on: November 27, 2008, 06:54:30 pm »
    thanks for the tips... all booked in and waiting to be sorted...

    chunkymonkey

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    Re: GPA Brembro brakes...
    « Reply #8 on: November 27, 2008, 09:04:17 pm »
    not sure if its something that abarth have started fitting but when i was stripping john501's abarth to do the esseesse kit i noticed it didnt have any anti squeal shims fitted from the factory, the 2nd one did.

    not sure if they were available separetely though. might be worth asking scorpion king.

    theyre not rubber either, theyre metal, and theyre held to the pad by a large adhesive area that you peel a cover off and stick the shim to.

    to do it belt and braces i would probably try and see if i could get those shims, then copper slip the pads and shims too.

    as an addition to the horror stories about brakes on here, ive seen someone fit brake pads back to front in the caliper holders before!  :o :'(

    Old Boy

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    Re: GPA Brembro brakes...
    « Reply #9 on: November 27, 2008, 09:44:48 pm »
    I saw the new Ferodo pads on the esseesse kit had shims already on them.  Some pads do come like that from the factory.  You can buy stick on ones aftermarket which are rubberised (Mintex have them made by 3M I believe) and also metal ones (but only seen these for cars like Volvos).
    Have to say I don't find the occasional squeal annoying, just reminds me I have some decent brakes rather than the usual Fiat dross. ;D

    magicmole

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    Re: GPA Brembro brakes...
    « Reply #10 on: November 27, 2008, 11:28:58 pm »
    Thanks to all.

    If you're reading this Scorpion King, any chance you can find out about those shims please? I'm booked in on the 6th. December.

    Unfortunately the squeal isn't occasional and is annoying during the morning commute. I also slow down for the last mile or so to let the turbo cool down a bit. Then the brakes cool and .....

    Guaranteed to wake the neighbourhood late at night, especially when you live in the sticks.

    Old Boy

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    Re: GPA Brembro brakes...
    « Reply #11 on: November 28, 2008, 08:17:16 am »
    How many miles have you done?
    Did you bed in the pads when new? This explains the process http://www.zeckhausen.com/bedding_in_brakes.htm

    I'd try copperslip first as it's the simplest and cheapest solution.  You can do it yourself too.

    magicmole

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    Re: GPA Brembro brakes...
    « Reply #12 on: November 28, 2008, 09:16:41 am »
    Hi Thanks for the link.

    I've done 2900 miles so far and I went through a reasonable break-in procedure. I used to be a race mechanic.

    I could do it myself but after all the problems I had with my last car, I'm not touching it while it's under warranty.

    If all else fails, new pads.

    Offline John501

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    Re: GPA Brembro brakes...
    « Reply #13 on: November 28, 2008, 10:12:59 am »
    I know its different pads, but the softer Esse Esse pads have not made any noise at all since they have been put on mine.
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    gillardy

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    Re: GPA Brembro brakes...
    « Reply #14 on: November 28, 2008, 01:16:40 pm »
    had my brakes done this morning... miles better... copperslip is the miracle cure for the moment... !! thanks mike and john

     

    hungry