Brakes make weird BURRRRRRR noise when reversing. - Miata Turbo Forum - Turbo Kitten is watching you test compression.

Saml01 · **Brakes make weird BURRRRRRR noise when reversing.**

This happened on like the third day after I changed my rear pads. All pads are PBR Ultimas. Third day after changing the pads, whenever I come back from a drive and back into my driveway, the FIRST time I brake the rear pads make a BURRRRRRRRRR type sound. Very loud, and you can FEEL it. Fronts are fine.

What the hell is that? Otherwise they stop flawlessly and the ebrake works.

nicacus · 08-07-2008, 08:47 PM

Mine kinda sorta did that shortly after I changed mine, one of the bolts that hold the caliper bracket on came loose..
might be that?

samnavy · 08-07-2008, 09:37 PM

Your mom makes the same noise.

ApexOnYou · 08-07-2008, 10:21 PM

My car does the same thing after installing Axxis Ultimates which I think is the same as PBR Ultimates? One thing that I noticed that is more than likely the cause is that the rear pads are either too small (from slide to slide) or my rear slide clips are really warped. Try checking those, I can actually slide my pad up and down a good 1/8".

**olderguy** · 08-07-2008, 10:26 PM

Remove the shims(if they are in there) and spray the backs of the pads with disc brake quieter.

icantthink4155 · 08-07-2008, 11:18 PM

Had some noise from mine, make sure everything is tight, that was my problem.

ApexOnYou · 08-08-2008, 02:02 AM

Quote:
	Originally Posted by olderguy Remove the shims(if they are in there) and spray the backs of the pads with disc brake quieter.

IIRC the Ultimates have those cheesy built in shims, so he shouldn't have the clip on shims on the pads, unless his PBRs were different after all. Regardless, disk brake quieter is a good idea.

Pitlab77 · 08-08-2008, 08:54 AM

did you adjust the parking brake?

Saml01 · 08-08-2008, 09:40 AM

Quote:
	Originally Posted by olderguy Remove the shims(if they are in there) and spray the backs of the pads with disc brake quieter.

So remove the shims completely, or apply the disc brake quieter and replace the shim?

Quote:
	Originally Posted by ApexOnYou IIRC the Ultimates have those cheesy built in shims, so he shouldn't have the clip on shims on the pads, unless his PBRs were different after all. Regardless, disk brake quieter is a good idea.

I re-used them off my old pads. Was that wrong?

Quote:
	Originally Posted by Pitlab77 did you adjust the parking brake?

Yes.

Stein · 08-08-2008, 09:55 AM

Quote:
	Originally Posted by Saml01 So remove the shims completely, or apply the disc brake quieter and replace the shim?

Remove shims, put on disc brake quiet between pads and shims and reinstall with shims. I use the orange CRC stuff. It's a thick liquid in a squeeze bottle. I also put some between the shim and the caliper fingers where the caliper hits the back of the shim. Basically anywhere metal hits metal. Never had a squeak.

Saml01 · 08-08-2008, 10:46 AM

Thanks for the tip, ill do it this weekend and check back.

**olderguy** · 08-08-2008, 10:57 AM

I've been removing the shim's completely for years and never had a noise problem. Prior to that, I had shims shifting and causing all sorts of noise and other problems.

The shims were originally there to reduce noise. Which they do not accomplish. Just something else to get fu***d up

jedduh01 · 08-08-2008, 11:14 AM

Are your rear rotors Lipped?.>.. the new flat pad might have a slightly larger pad area. casuing new matearial to contact with the outer grove. The pad will wear quickly into the grove, and then be fine.....

I had that on the rear of my 97.. went away after the pad wore in...

Set the park brake and drive a little, to help it grove in.

ApexOnYou · 08-08-2008, 02:06 PM

I am not sure if you should be running the shims with those pads since they have the softer raised spots that are designed to replace the factory shim. I don't think that would make that noise though, it would more than likely be a clicking noise if that was the case.

Saml01 · 08-08-2008, 02:18 PM

Its a like BURRRRRRRRRRRRRR, loud and angry and ends as soon as I let off the brake.

Ill try to record a video tonight for you guys, then you can tell me what I should do.

cjernigan · 08-08-2008, 02:42 PM

I say bed them going in reverse, see what happens. I love boost going backwards.

ApexOnYou · 08-08-2008, 06:17 PM

Only does it once in reverse right?

Saml01 · 08-08-2008, 06:31 PM

Quote:
	Originally Posted by ApexOnYou Only does it once in reverse right?

Only in reverse, never forward.

Quote:
	Originally Posted by cjernigan I say bed them going in reverse, see what happens. I love boost going backwards.

Whatever youre smoking, send me some.

**y8s** · 08-09-2008, 12:09 PM

Quote:
	Originally Posted by samnavy Your mom makes the same noise.

i love sam

Saml01 · 08-13-2008, 02:45 PM

Btw, the sound went away all on its own.

Quote:
	Originally Posted by y8s i love sam

I love you too.