Yes Another Brake Squealing Thread

[R32 TT]

yeah i did but im going to do a full brake flush when i get the chance with some new fluid and thinking of getting some QFM pads for the front, use copper grease and hopefully i get some better results

with standard rotors and stock nissan pads it done it maybe 20% of the time but this is like 80% if not more

I've just had the same problem running DS2500's on stock rotors and calipers. Noisy-Noisy bastards! And I laughed when I read you were pulling the handbrake on because so was I.. I swear it was that loud it could break glass...

A mate of mine had a fix! It was a rubber strip with adhesive on one side. More or less just like a sticker that you stick to the back of the pad. I have to admit I was dubious, but it was worth a try. Fixed 95% of it straight up! I've driven for a couple of days with it and mostly there is no squeal at all. The "occasional" squeal here and there, but also no where near as loud as before, and you would expect some noise form those pads at low temps anyway I think..

The bad news? I don't know the name of the product! But he got it from Perth Brake Parts. Its about .5mm or maybe 1mm thick. Looks like black rubber, and you just peel it off its backing like a sticker and stick it to the back of the pad.

Hope you can track it down from that?

[Scooby]

It was a rubber strip with adhesive on one side. More or less just like a sticker that you stick to the back of the pad. I have to admit I was dubious, but it was worth a try. Fixed 95% of it straight up! I've driven for a couple of days with it and mostly there is no squeal at all.

they're called stick on shims and available from performance friction aka barry smith motorsport in canberra also. you can try descaling both the hub and both sides of the rotor flange. dba swear this removed squealing on a wrx. call aaron at dba, i had a long chat to him re squealing, he's also of the opinion that you need to get the right pad - not just any street pad.

[tek_01]

yes the rubber things are the generic anti squeal shims sort of thing, i will give them a try

they're called stick on shims and available from performance friction aka barry smith motorsport in canberra also. you can try descaling both the hub and both sides of the rotor flange. dba swear this removed squealing on a wrx. call aaron at dba, i had a long chat to him re squealing, he's also of the opinion that you need to get the right pad - not just any street pad.

what the hell is descaling ?

must look it up...

keep the ideas coming guys, im going to beat this . i dont give a f**k

[Scooby]

what the hell is descaling ?

thoroughly clean off all the rust and accumulated crap, even if it looks clean, which is unlikely for a street car.

[Onthehunt]

i picked up some stick on shims yesterday from perth brake parts for $8(enough to do rears) and the squeeling seems to have gone 95% of the time. Time will tell if the squeeling comes back after a week like the goo but hopefully that won't happen as shims can't exactly dry up like the goo.

I put up with the squeeling for months and finally had enough and this seems to have worked(fingers crossed) so everyone else who gets as annoyed with it as i did give the stick on shims a go

[Basti]

i've got a similar porblem. the squeal is crazy loud now and i cant stop anywhere without it squealing. only happens on lowspeed however if im turning left especially at say 60-80 there is a loud wail. very different to the lowspeed stuff. i also get a gurgling/ rubbing noise sometimes. its shitting me up the wall

[tek_01]

to the guys who used the stick on shims, you removed your metal shims didnt you and just used them?

[R32 TT]

to the guys who used the stick on shims, you removed your metal shims didnt you and just used them?

Well I didn't actually have any metal shims in the first place (which is probably half the reason it was sqealing). But yes, I used only the stick by themselves.

[Onthehunt]

to the guys who used the stick on shims, you removed your metal shims didnt you and just used them?

i kept my metal shims on and used these as well so have both

Edited December 5, 2007 by Onthehunt

[tek_01]

damn 2 different things lol

will try get some on the weekend and see how it goes

to be honest i rekon it wont do shit but i hope im wrong!

[R32 TT]

to be honest i rekon it wont do shit but i hope im wrong!

I'll put $10 bucks and a half empty can of coke on it !

[Onthehunt]

damn 2 different things lol

will try get some on the weekend and see how it goes

to be honest i rekon it wont do shit but i hope im wrong!

i thought to myself that it is worth a shot as it will take a couple of hours tops to do and if it works for the $10 and 2 hours of effort it is well well worth the reward of not having a really bloody annoying squeal every time you hit the brakes...and it brings a smile to my face every time i pull up without the squeal now lol

I would definitely keep the metal shims on as well, it won't do any harm to leave on them on as well so why would you take them off but just see how you go and post up here how you went.

Edited December 6, 2007 by Onthehunt

[tek_01]

did you use any copper grease or goo on the shims? or just cleaned everything up and put them back in?

[Onthehunt]

i cleaned up the shims on the pad backing plate side and gave it a quick clean on piston side but didn't put any grease on it. In the stick on shims packaging it had a warning saying do not apply any goo in between shims and pad and make sure it was clean of any so i did that.

[tek_01]

just an update. Today i installed some new pads QFM 500deg ones

on a good note, damn they stop soooooooo much better than my other pads

on a bad note, squeal is still there

got some questions about the shims, will draw a bodgy mspaint drawing to explain but yeah now im not sure if the squeal is coming from the front or rear but most of the time it comes from the passenger side

i took out the shims, cleaned them real good, put a small dab of goo on the back of the brake pads and installed them again. bed them in but still get squeals but not as bad (altho its only been 1 day)

picture coming up soon

[tek_01]

oh i only changed the fronts so far as i didnt want to buy all round pads and still not fix it as my old pads are only a few months old

btw, spoke to a brake place (brakewest) and they said the stock shims are better than the stick on ones thats why i didnt install them yet rather got better quality pads. They thought after i explained the whole story that my cheapo chinese brake pads were the problem

also they pointed out that the little corner shim is the most important and if u dont have it u will get squeals (i DO have it tho.. and i got a question on the positioning of it)

[tek_01]

Here is the picure, its pretty bad and im going off memory but is that the right placing of the shim on the corner? sits in the top corner of each pad when they are installed fasing inwards towards the rotors and the other shims or on the opposite side facing the pistons

[tek_01]

onthehunt, hows the squeal going? has it come back yet or still all good?

is it completely gone or just a major improvement?

[Sydneykid]

I had a squealer in the other day, the problem was the pins that hold the pads in were slightly worn. So the pads were moving aorund in the callipers, this caused wear where the pads sit in the callipers. I welded on to the backers a small dab, then linished it to fill the gap to the calliper. It is also worth checking the dimensions of the pad backers. If they are undersized, even slightly, they allow the pad to vibrate, it's the high frequency vibration that you hear as squeal.

Some brands of pads are worse than others when it comes to correct sizing of the backers, so make sure you check them carefully before you put them in. The 4 spots callipers (compared to sliding callipers) are always more prone to incorrect pads sizing, they simply have to be spot on.

Cheers

Gary

[tek_01]

so you mean the top and bottom of the pad when they are sitting in the caliper has some play and wear out the caliper?