Low Speed Brake Noise

[matt_gumpym35]

Hey all, just replaced the pads on my m35. At light braking pressure and low speeds im getting a slight grinding noise from the front left (i think?)

Made sure everything went back on as i took it off.

Slides arent sticking, greased them up.

What have i done wrong..

[PN-Mad]

Didn't do anything silly, like put the brake pads back-to-front?

Did you bed them in as manufacturers instructions?

[Daleo]

Rip off the offending wheel; look for unusual scoring from something touching either rotor or caliper.

Something might be sitting not quite right.

[KiwiRS4T]

A fix that worked for me:

Take the pads out and chamfer the leading edges and put them back

[matt_gumpym35]

Cheers guys, will have another look tomorrow.

Ive got QFM hpx pads, can anyone tell me which way they are meant to be installed? Different to the previous pads so i kinda took a stab..

[Sinista32]

new pads on worn rotors ?

the previous pads bed into the rotors. When you put new pads in ........

If suggestions above fail consider having your rotors done

[matt_gumpym35]

New pads and machined rotors. It'll be something stupid that ive missed.

[Daleo]

Not too much heat when bedding in; do exactly as they recommend, and all should be well.

[matt_gumpym35]

Did that to, is anyone using the hpx pads? May have gotten them a bit to hot to. Didnt think i was brakig to hard though.

[PN-Mad]

Yup, I use them in the stagea. Looking back, I was probably over vigorous bedding, but mine have performed fine on road and track up to their supposed max temp.

Take the suspect side apart again and have a look what's going on. You could have bumped the dust shield, or might be something scraping, or you might have installed the pad metal to metal or shim in the wrong location for all we can help you on the net!

[joshm35]

I get brake noise from my pads (r32 gtr project mu). I kust learn to live with it. Sounds like I have brembos the way it squeals.

[PN-Mad]

Lol.

Unless your running some crazy 300-900 degree pads, your brakes shouldn't squeal at all, whatever caliper. It's only a product of not doing the job right.

[matt_gumpym35]

Not squealing, just the grinding. Checked both sides out, no idea wat it is. Brakes work fine though.

[KiwiRS4T]

Did you try putting a chamfer or bevel on the leading edges of the pads? Worked for me.

[matt_gumpym35]

The pads already have it on both endges. Tried swapping them round in the caliper to. Got me buggered.

[whitestag]

mine have a slight squeal sometimes, I just put hpx's on new slotted/dimpled rotors. I was a little over vigerous in bedding in aswell. stopped at intersection and had a little smoke... :S