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-   Suspension, Brakes, Drivetrain (https://www.miataturbo.net/suspension-brakes-drivetrain-49/)
-   -   Brakes make weird BURRRRRRR noise when reversing. (https://www.miataturbo.net/suspension-brakes-drivetrain-49/brakes-make-weird-burrrrrrr-noise-when-reversing-24613/)

Saml01 08-07-2008 07:54 PM

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? :dunno:

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


Originally Posted by olderguy (Post 293793)
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


Originally Posted by olderguy (Post 293793)
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?


Originally Posted by ApexOnYou (Post 293851)
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?



Originally Posted by Pitlab77 (Post 293884)
did you adjust the parking brake?

Yes.

Stein 08-08-2008 09:55 AM


Originally Posted by Saml01 (Post 293905)
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


Originally Posted by ApexOnYou (Post 294100)
Only does it once in reverse right?

Only in reverse, never forward.


Originally Posted by cjernigan (Post 294038)
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


Originally Posted by samnavy (Post 293779)
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.


Originally Posted by y8s (Post 294304)
i love sam


I love you too.


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