Rear brake squeal

[Brucelee]

Sorry, this is not normal on all S. In fact, I have not stocked one yet that did this.

[wvicary]

I use a product at work that works rather well but can't remember the name right now...... you just spray it on the rotors and it work a treat. Will get all the info tomorrow and post it.

[KRZTACO]

Bump Bump Bump

[wvicary]

That stuff is called "Brake-in" it's a brake finishing treatment and maybe by Kleen-flo..... the part number is 333. Give it a try if everything else checks out. I've used it sereval times and found that it works rather well.

[wingnuttyz]

Yesterday I tried a few hard braking to burn off the glaze on the rotors, then the rear brake began to squeal at low speeds even when my foot was off the brake

Anyone with the same experience? Has anyone tried sanding the rotors to get a smoother finish?

[deliriousga]

Originally Posted by wingnuttyz

Has anyone tried sanding the rotors to get a smoother finish?

Careful, it's difficult to be perfectly even and you can get some fluttering as if the rotor were warped if an area is sanded too deep.

I use Disc Brake Quiet (spray, not the goop) and completely clean everything thoroughly when I change the pads and I haven't had any problems yet.

Is there anything like the damper below for the Boxster? The prongs go into the piston and the other side sticks to the pad. It stops the movement and works great on the 928, just don't know if they're available for the Boxster.

[Brucelee]

Clean spray can be effective. I wouldn't sand rotors, cheap enough to have them cut if that is the issue.