Why Are My Brakes Screaming For?

[GTRPSI]

Ive tried a few pad combinations on my Sumitomo calipers without noise issues.

Have you pretensioned the spring plates that fit between the 2 pins over the top, they are designed to apply pressure on to the top of the pads and hold them down to assist stopping noise.

With time and heat they lose tension and a little bend back into shape for more pressure helps, also make sure the hump on them is pointing in the direction the rotors turn.

One other trick is to chamfer both edges of the pads with a 45 degree cut, this gives the pads a smoother contact ramp, but as said you need a few hundred Km to allow the pads to spread a layer of material on to the rotors.

I used EBC green stuff and now use Red Stuff Ceramic compound without issues on my Sumitomos with the stick on backing plate supplied with the pads, not a sound to be heard and they are rated to around 650 degrees. no need to chafer them, just drop them straight in....

[SargeRX8]

Its been about a thousand km's on fresh surface rotors. Still noisy as f**k. Very consistent noise too. Sometimes noise in the morning the first instance you use the brake, noise when they are warm, and noise when they are hot. I'm ordering new pads. I already tried a chamfer on the edges, no luck. My retainers and clips are brand spanking new from Nissan.

Edited February 2, 2012 by SargeRX8

[gotRICE?]

Im going to give mine another crack this weekend.

Got some new rubber shims and synthetic grease. Will give the spring thingy a bit of tension too, thats a great idea.

I remember removing it for the first time and almost lost an arm if flew out so fast lol.

[SargeRX8]

Im going to give mine another crack this weekend.

Got some new rubber shims and synthetic grease. Will give the spring thingy a bit of tension too, thats a great idea.

I remember removing it for the first time and almost lost an arm if flew out so fast lol.

I done that too lol, I twisted the pin with a screw driver to loosen it and the damn thing flung out.