Abarthisti

Abarth Cars => Abarth Grande Punto => Topic started by: 1mmortal on January 11, 2009, 06:46:15 pm

Title: GPA Squeaking Brakes
Post by: 1mmortal on January 11, 2009, 06:46:15 pm
A few of us have been ona bout squeaky brakes...on the wrong topics! So i;ve created this post to continue the discussion.

Redirected from https://www.abarthforum.co.uk/index.php/topic,197.msg3815.html


Jet - You tried giving it a thrashing and see if the brakes still squeak?
I find that if you keep the heat in the pads they don't make noise. Difficult if you have passengers though  ;)
Title: Re: GPA Squeaking Brakes
Post by: Missing in Action on January 11, 2009, 06:48:27 pm
yea mine only squeel in traffic. - starting and stopping at lights. otherwise mine are fine :)
Title: Re: GPA Squeaking Brakes
Post by: 1mmortal on January 11, 2009, 06:49:34 pm
yep same - very low speeds i get a definite low-pitched whistle when pulling up.
Title: Re: GPA Squeaking Brakes
Post by: Missing in Action on January 11, 2009, 06:51:22 pm
or when i just set off, i have to go over speed bumps to get out my estate so i brake for those and it squeels... if i stop hard for them it stops the squeel :)

like 1mmortal says get heat in them and there fine :)
Title: Re: GPA Squeaking Brakes
Post by: magicmole on January 11, 2009, 07:05:01 pm
It was suggested on the forum that copper grease applied to the pads would temporarily cure the problem. The tech at Autoworld said it wouldn't (twice) but after 4500 miles I was getting p1ssed off with the squealing in traffic and had some applied when my wheels were replaced. Well, after 2 weeks they're still squeak free.
Title: Re: GPA Squeaking Brakes
Post by: 1mmortal on January 11, 2009, 07:07:29 pm
It was suggested on the forum that copper grease applied to the pads would temporarily cure the problem. The tech at Autoworld said it wouldn't (twice) but after 4500 miles I was getting p1ssed off with the squealing in traffic and had some applied when my wheels were replaced. Well, after 2 weeks they're still squeak free.

Cool - keep me updated on this, magic.
Title: Re: GPA Squeaking Brakes
Post by: Missing in Action on January 11, 2009, 07:08:31 pm
On all my cars and motorbikes copper slip has always cured the problem  ???

surely though its only worked for a limited time?

am i correct in saying its something to do with the shim with the abarth brake problem? or is that just the mjets/Tjets?

if it is, is there any news on a revised shim for the UK cars?

john
Title: Re: GPA Squeaking Brakes
Post by: John501 on January 11, 2009, 07:10:18 pm
Well Chunky has put copper slip on every one that has come back and they all seem fine now.
Title: Re: GPA Squeaking Brakes
Post by: Missing in Action on January 11, 2009, 07:12:43 pm
well if it does work perminatly thats great news - id rather only take the 1 trip to the garage for the copper slip than a second one for a revised shim fitted so long as it was perminant  :thumb:
Title: Re: GPA Squeaking Brakes
Post by: happycallis on January 11, 2009, 07:12:53 pm
On my bikes it would always be fine for the life of the brake pad (about 6k) and the car would be a little longer. My dad was a mechanic years ago and he has always put copper slip pn the back of the brake pads. The copper slip can start to wash away espically if you use a jet wash anywhere near the pads.
As i think someone else has said on here that brake dust build up causes the noise, you could always try blasting the dust out and see if it happens or it takes some time to start happening again
Title: Re: GPA Squeaking Brakes
Post by: chunkymonkey on January 11, 2009, 07:16:37 pm
yeah, i deglazed the discs and flattened the pads too, copper slipped them and havent heard any more complaints.

until we get an abarth in that needs a set of pads were not gonna know if they come with shims or not, solme have and some havent from the factory.
Title: Re: GPA Squeaking Brakes
Post by: John501 on January 11, 2009, 07:18:04 pm
I didn't say it is perminant, it depends on usage and the dust build up.
Ah Chunky, its about time you turned up in a technical thread :thumb:
Title: Re: GPA Squeaking Brakes
Post by: Missing in Action on January 11, 2009, 07:20:53 pm
haha yea cheers chunky - thx for clearing that up  :thumb:
Title: Re: GPA Squeaking Brakes
Post by: chunkymonkey on January 11, 2009, 07:21:21 pm
have i missed a load then?

i have had man flu for the past 2 weeks, and both my boys are ill. so thats my excuse.   ;D
Title: Re: GPA Squeaking Brakes
Post by: John501 on January 11, 2009, 07:22:52 pm
Has it effected your eyes and fingers then? That must be a really bad case ;D
Title: Re: GPA Squeaking Brakes
Post by: Scrogg on January 11, 2009, 07:24:18 pm
or when i just set off, i have to go over speed bumps to get out my estate so i brake for those and it squeels... if i stop hard for them it stops the squeel :)

like 1mmortal says get heat in them and there fine :)

Exactly the same here. Only last for the first one or two times they are applied then fine.
Title: Re: GPA Squeaking Brakes
Post by: chunkymonkey on January 11, 2009, 07:25:33 pm
you know what man flu is like, its a struggle just to turn the pc on hehe.

anyways the mrs doesnt like me sat on here all night, something about charging overtime...... :o :D
Title: Re: GPA Squeaking Brakes
Post by: Missing in Action on January 11, 2009, 07:27:19 pm
lol :P theres nothing like trying there the chunky ;)
Title: Re: GPA Squeaking Brakes
Post by: John501 on January 11, 2009, 07:29:11 pm
Overtime! I think you've only worked one out of the last 5 weeks. Didn't you have time off over Christmas? Are you back tommorrow, we have a deliver of Abarth 500 to PDI. :thumb:
Title: Re: GPA Squeaking Brakes
Post by: Scrogg on January 11, 2009, 07:33:39 pm
Are you back tommorrow, we have a deliver of Abarth 500 to PDI. :thumb:

Not going to be happy if yours turn up tomorrow! :P
Title: Re: GPA Squeaking Brakes
Post by: chunkymonkey on January 11, 2009, 07:33:55 pm
i had holiday over xmas, technically i was only off sick for 2 working days, i was just ill before,during and after my xmas hols!

yeah i came back last tuesday, on a roll now hehe.
Title: Re: GPA Squeaking Brakes
Post by: John501 on January 11, 2009, 07:35:48 pm
Scrogg, I seriously doubt it as they were at status 40 on saturday.
Title: Re: GPA Squeaking Brakes
Post by: chunkymonkey on January 11, 2009, 08:50:33 pm
so whats status 40?
Title: Re: GPA Squeaking Brakes
Post by: Scrogg on January 11, 2009, 08:56:17 pm
so whats status 40?

Arrived at Portbury but not been checked over yet.
Title: Re: GPA Squeaking Brakes
Post by: domc on January 19, 2009, 11:24:36 pm
I had my first experienceof the squealing brakes today, i thought it was blue an me bleeping at me at first because i had just been messing with it.
Title: Re: GPA Squeaking Brakes
Post by: Missing in Action on January 20, 2009, 06:21:04 am
like i said before mate it doesnt bother me that much, get the brakes upto temperature a little and it stops for a while anyway. - else mine does ;)

if it starts getting annoying though take it back and get the copper slip put on it.  :thumb:
Title: Re: GPA Squeaking Brakes
Post by: Graham on January 20, 2009, 07:25:53 am
Mine started squealing at the weekend too! 600 miles on the clock. Cant say I'm too worried about it, as other people have said its only when I touch them if I am going really slow .. not worth a 200 mile round trip for copper slip to be put on ...
Title: Re: GPA Squeaking Brakes
Post by: Old Boy on January 20, 2009, 07:38:26 am
Mine started squealing at the weekend too! 600 miles on the clock. Cant say I'm too worried about it, as other people have said its only when I touch them if I am going really slow .. not worth a 200 mile round trip for copper slip to be put on ...

Do it yourself, it's not difficult  ;)
Title: Re: GPA Squeaking Brakes
Post by: Le Man on January 20, 2009, 07:51:09 am
Brake noise is a resonance caused by brake pad dust caught between the pad and disc.
This problem started when asbestos was outlawed as a component of pads.
The resonance is magnified by the caliper acting like the soundbox on a guitar.
Copper based grease is not a miracle cure but can muffle the sound transmission through to the caliper.
The main reason to use it is to reduce the likelihood of pads and pistons seizing.
Wafer thin shims of carbon fibre cut to the same shape as the pad and inserted between the back of the pad and the face of the piston act as an acoustic decoupler and cure brake squeal.
Pagid used to sell the carbon fibre sheet, although I haven't needed any in ages.
Title: Re: GPA Squeaking Brakes
Post by: tony401195 on January 20, 2009, 09:04:38 am
Demon tweeks used to sell carbon fibre sheet as well
Title: Re: GPA Squeaking Brakes
Post by: 1mmortal on January 20, 2009, 06:10:16 pm
anyone provide us a link, and maybe some pictures of fitment?  :thumb: