Brake Squeal

[TurboVR4]

Okay I've reinstalled my pads twice and my brakes still squal worse than ever. Front ceramic, rear semi-metalic. Can someone tell me what I'm doing wrong?

The rear pads had two shims installed initially and I put them both back on when I replaced the pads the first time(I applied brake-quiet gel in between the pads and shims). Does the brake-quiet stuff go btwn the pad and shim, or btwn the back of the shim and brake piston?

I removed the smaller shim to see if that helped, but it did not. Should I continue to use both shims in the rear, or just the larger one that covers the whole pad?

And what about the rubber around the caliper pistons - should I clean or apply lithium grease around those seals?

[wraith]

I use Permatex brake quiet in a spray can and all the shims and I spray the back of the pad and the shims. Have you bed the brakes in? Sometimes the bed in compound on the pads squeal until you burn it away.

[TurboVR4]

Yeah, the pads have about 1k miles on them. . . Any suggestions?

[veerfour05]

Did you just replace pads or did you do anything with the rotors.

[TurboVR4]

Originally Posted by veerfour05

Did you just replace pads or did you do anything with the rotors.

I installed new rotors and pads together about 1k miles ago. They seemed fine at first, but have been squeaking for the past 6 months or so. .

[massstealth]

you might have to chamfer all the edges of the brake pads. The harsh right angle can make noise.

[TurboVR4]

Is it a good idea to put lithium grease around the rubber seal surrounding the brake piston? That rubber gasket looks a little worn. . I was concerned about spraying brake cleaner on it for fear it would only wear it out faster - thought?

[massstealth]

I wouldnt put anything on the boot. Would just attract dust. Best to just spray brake parts cleaner.