Squealing Brakes

[pturner3]

This is driving me mad! The front brakes squeal regularly and I cannot figure out why.

Here is a list of what I have done to the front brakes on my car:

- Brand new front discs, OEM, 2000 miles ago, and they have always squealed. (The black coating was rubbish, and came off in big chunks that stuck in the pads)
- Now on second set of front pads after ditching the new front ones fitted when discs were replaced. Currently using PAGID ones, with anti-squeal shims! and PAGID anti-squeal grease.
- Checked front calipers for piston seizure - all are perfectly free to move.
- The front discs are still in excellent condition.

I still have squealing, and also the brakes generally feel poor.
I have new oil in the system which has been thoroughly bled. The brake pedal is not spongy, it feels firm.


Also done to the rear brakes:

- Overhauled the rear calipers with new seals and pistons
- New Compbrake two piece discs and yellow stuff pads.



Can anyone give me some suggestions, or perhaps share their experiences? Perhaps its the disc/pad compounds - only thing that comes to my mind at the moment?

 

[Spike]

mine squealed because the wear plates had jacked out on lumps of corrosion, take em off and clean them, i do have some bolts left! also on the ebc pads they have a rubber damper stuck on the back, this helps. as for the rears, unless the caliper is squeaky clean and free they usually are noisy, the pistons on mine sometimes stick which leads to an irritating noise in town. a quick tug on the handbrake does temporarily cure this but the real fix is to strip the caliper and lube the seals, unless they have gone hard then its time to replace.
remember: its the distortion of the square rubber seal that brings the pads back from the disc, this is the return spring, if this is hard or sticking the pads will rub and squeal. hope this is helpful.

 

[Williams]

Excellent...

Good 'Knowledge Base' material is that Spike!

 

[pturner3]

Thanks for the suggestion Spike.

I overhauled the rear calipers completely, new seals and pistons, with much improvement to the free travel of the piston. the yellow stuff pads came with stick on rubber shims, which I fitted.
The latest front pads, PAGID, came with the rubber backing shim attached already. The squealing issue is front the front brakes.

I remember reading about your post regarding the lumps of corrosion on the calipers. I will PM you about the screws... sounds like it's definately worth a go.

Cheers
Phil

 

[Spike]

Screws are in the post, just. send payment to return add on envelope when you get them if you wish.

 

[pturner3]

Hi Spike

Many thanks for that, just received them today. Will send payment to you, I assume they are still a fiver?

All the best
Phil

 

[Spike]

payment recieved, thanks.

 

[pturner3]

Cheers - this was a good suggestion.

I removed the guide plates and thoroughly cleaned them and the caliper of deposits. The brakes are now much more responsive and the squealing is disappeared. Awesome. [smilie=thanks.gif]

 

[Spike]

its nice to get some positive feedback.

 

[Brett]

its nice to get some positive feedback.

Talking shit as usuall I see Spike....lol Terrible advice in my opinion.

 

[Spike]

its nice to get some positive feedback.

Talking s**t as usuall I see Spike....lol Terrible advice in my opinion.

Brett, I find that when i talk a lot i don't learn anything!

 

[Brett]

Lol I just can't see whats the issue with spraying WD40 on the disk and pad is. That would definatly stop the sqealing