My new brakes are squeaking...

[adamc11]

Just fitted new brakes (rotors, calipers and pads - ap racing brake kit) front and back and on very soft braking at low speeds (i.e. coming to a stop at lights) the brakes squeal/squeak. They were fitted on Thursday last week. I did not notice this initially but it seems to have started sat or Sunday. What could be causing this... it's very annoying...

[jules]

it's they're racing brakes, then it's unlikely much development effort went into reducing their NVH. turn up the radio.

[Bravotwozero]

Just fitted new brakes (rotors, calipers and pads - ap racing brake kit) front and back and on very soft braking at low speeds (i.e. coming to a stop at lights) the brakes squeal/squeak. They were fitted on Thursday last week. I did not notice this initially but it seems to have started sat or Sunday. What could be causing this... it's very annoying...

There's nothing wrong with them. You wanted big brakes didn't you? The bigger pads will require more heat in them before they start working properly. Kind of why I suggested you should stick with the bigger PBR's!

[Tom_1569]

The obvious... Did you use brake cleaner after fitting? You get grease and **** whilst fitting them, did you bed them in?

EDIT: Ahh ok, the others have faster fingers, and are on the right track

[CSP]

Remove the mice.

[adamc11]

it's they're racing brakes, then it's unlikely much development effort went into reducing their NVH. turn up the radio.

They came with the brake kit.. they are the Ferodo (spelling?) ones that come with AP kits.

There's nothing wrong with them. You wanted big brakes didn't you? The bigger pads will require more heat in them before they start working properly.

But this shouldn't cause squeaking should it?

The obvious... Did you use brake cleaner after fitting? You get grease and **** whilst fitting them, did you bed them in?

My mechanic fitted them... i would assume he used brake cleaner. He took them for a drive and bedded them in, but told me to take it easy for a few hundred kms. I've taken it easy but have had a few harder stops but have not given them **** or held my foot down on them whilst stopped.

[Bravotwozero]

They came with the brake kit.. they are the Ferodo (spelling?) ones that come with AP kits.



But this shouldn't cause squeaking should it?



My mechanic fitted them... i would assume he used brake cleaner. He took them for a drive and bedded them in, but told me to take it easy for a few hundred kms. I've taken it easy but have had a few harder stops but have not given them **** or held my foot down on them whilst stopped.

The bigger brakes are going to be noisier. You'll just have to get used to it.

[jules]

They came with the brake kit.. they are the Ferodo (spelling?) ones that come with AP kits.

why do you think that means they won't squeak?

lots of guys in white lab coats who work for OEM brake manufacturers go to long lengths to get the pad and disc compounds just right, so that they won't squeak or graunch.

if they are racing brakes, as you said, then they probably didn't bother.

of course that may not be the problem, it could just be grease on the discs, who knows.

[adamc11]

The bigger brakes are going to be noisier. You'll just have to get used to it.

Well it only happens sometimes and as i said at low speeds and very light braking. I'm happy with more rotor noise when braking, but squealing every so often seems a little abnormal.

[Bravotwozero]

Well it only happens sometimes and as i said at low speeds and very light braking. I'm happy with more rotor noise when braking, but squealing every so often seems a little abnormal.

Wouldn't worry about it mate. Head for the twisties and give those bad boys a work out!

[88GreenVN]

Being new and all it may just take a few stops the get a little room for the pads to not touch the rotor. Hard pads with light stopping may squeek a bit. Not what you were looking for I bet.

[Sabbath']

It's pretty normal/common for "High Performance" brakes to be noisy. Turn up the radio.

[Dayvo]

try using some anti squeal compound on the back of the pads.

[adamc11]

Thanks guys. Will see how it goes. Apart from the squeaking, the brakes are bloody awesome. They stop a treat =)

[minux]

Get used to it, when they stay cool, they will squeal. I'd probably recommend better pads than the ferodo rubbish you used also. I find until I get a little heat into my rotors they squeal a little.

[adamc11]

Get used to it, when they stay cool, they will squeal. I'd probably recommend better pads than the ferodo rubbish you used also. I find until I get a little heat into my rotors they squeal a little.

We have the same brake kit don't we? What pads are you using?

[cpbait]

yeh with the hi-performance brake pads you will get a bit of squelling especialy when cold and may wear a bit quicker than you thought too, so don't be suprised if this happens too as you are useing race type pads on an everyday street car.

i found this out with mine, standard vy v8 calipers, but i used dba slotted discs with bendix ultimates, and had the same problem, and as explained to me its caue there too harsh a compound for every day driving as they don't get hot enough too be used at there optimum braking capacity and there for squel cause they are still cold and also sometimes have a sharp finish on the pads.

i over came this by switching to bendix general ct's, do the same job, but better for day to day street driving and i use these with my dba slotteds, not squeling and no brake dust, can't recomend them highly enough, these were recomended to me buy the same guys i worked with that told me bout the ultimates being too harsh. also i changed my ultimates within 12-14 months(worn out close to metal) and the ct's i haven't had to change yet in 10 months and still have plenty of meat on them and haven't worn the slotted discs out any where near as much as the ultimates, sorry for the long winded message, hope this helps though and recomend trying the ct's better day to day, ultimates better for the race track.

[Tom_1569]

Im running DBA slotted and Bendix CT's all round on the VT. Works great, pulls up better then the last junk that was on there, no squel, and hardly any brake dust.

[vxcalais_01]

Alot of people just dont grease there brakes and components any more. Sil-Glyde (silicon grease) or Permatex Brake grease it the way to go, fantastic for nolathane bushes as well.