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Old 08-19-2012, 10:27 PM   #176
mechatricity
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OH MY GOD. i cannot believe i found this thread. I'm 97% sure this explains the scraping noise my car has been making under hard left cornering. Time to go tear things apart!!!

Thank you so so much to the OP and anyone who has contributed to this thread.
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Old 08-20-2012, 10:35 PM   #177
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I just fixed my grinding issue with this quick fix displayed on the first post. Thank you Nasioc for the wonderfully old threads that solve simple problems. This should be stickied as stated before.
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Old 08-21-2012, 10:41 AM   #178
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How is this thread still not a sticky?
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Old 08-21-2012, 10:51 AM   #179
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Quote:
Originally Posted by michaelwfox
How is this thread still not a sticky?
Because moderators don't think its sticky worthy? :-/
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Old 08-21-2012, 11:56 PM   #180
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I just swapped in DBA 4000 slotted fronts with stoptech pads, all OE size. Now i've got an intermittent "clunk" at low speeds. I've taken everything apart again and everything is tight. no lip rubbing. Thoughts?
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Old 08-22-2012, 02:42 PM   #181
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Quote:
Originally Posted by SparkSilver10NM View Post
I just swapped in DBA 4000 slotted fronts with stoptech pads, all OE size. Now i've got an intermittent "clunk" at low speeds. I've taken everything apart again and everything is tight. no lip rubbing. Thoughts?
If you've got a clunk it's probably not this issue.
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Old 08-22-2012, 02:43 PM   #182
96accord
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Quote:
Originally Posted by mechatricity

If you've got a clunk it's probably not this issue.
This! Was thinking the same thing
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Old 08-22-2012, 03:54 PM   #183
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Quote:
Originally Posted by SparkSilver10NM View Post
I just swapped in DBA 4000 slotted fronts with stoptech pads, all OE size. Now i've got an intermittent "clunk" at low speeds. I've taken everything apart again and everything is tight. no lip rubbing. Thoughts?
Check your wheel bearing, maybe?
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Old 08-23-2012, 04:45 PM   #184
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Ah I found it, One slider bolt on the caliper was a bit loose and the caliper was trying to slide apart! disaster averted! "always tighten twice"
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Old 09-09-2012, 09:27 PM   #185
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Glad it's fixed for you! I need to do that to mine.. Still haven't done it yet..
Mine is now fixed!
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Old 09-10-2012, 02:12 PM   #186
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Originally Posted by 96accord View Post
Mine is now fixed!
BOOM!
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Old 09-12-2012, 08:35 AM   #187
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Just installed new Stoptech Street pads and Centric rotors (and stainless brake lines) and had this problem rather loudly for both left and right turns. Thankfully, I was directed here - took the rear rotors off last night, found where they were wearing, used a Dremel to remove the area that was causing problems and now...no more sound!

Thanks to everyone in this thread - this REALLY ought to be a sticky!

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Old 09-12-2012, 02:22 PM   #188
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Quote:
Originally Posted by Kiel
Just installed new Stoptech Street pads and Centric rotors (and stainless brake lines) and had this problem rather loudly for both left and right turns. Thankfully, I was directed here - took the rear rotors off last night, found where they were wearing, used a Dremel to remove the area that was causing problems and now...no more sound!

Thanks to everyone in this thread - this REALLY ought to be a sticky!

BOOM! :Ritz:

Glad I could help!
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Old 09-13-2012, 06:59 PM   #189
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Quote:
Originally Posted by REX8 View Post
Problem: The mysterious rear rotor lip rubbing on the ebrake backing plate issue.

Every few months this problem appears on the forums, never a good answer given. No explanation has been found. Problem usually starts as a grinding while driving or turning. Sometimes AFTER having new rotors installed, and also, like myself, the problem arose for the first time after 10k miles on a set of rotors. Here's the issue.



^^^ Said rotor lip (in the middle, rusted over a bit)

Subaru techs have posted that when installing rear rotors on Impreza's it has become standard practive to machine or grind down this rotor lip to prevent rubbing. Fine, I'm just looking for a better solution.

When I can get to a mill, I take the 1/8" off the rotor lip needed to stop the noise...when I can't get to one...I have to do this:



^^^Cut away the bottom of the backing plate where the rotor rubs.

I'd just like to know why the problem would all of the sudden occur. Its NOT WHEEL BEARINGS and not bent hubs. What gives. I know I'm not alone.

I've had rubbing with OEM rotors, DBA H6 rotors (after 10-15k), and generic H6 rotors.

I know people have also had this problem with WRX sized rears, so I don't THINK its a difference with H6 rotor dimensions vs. WRX rotor dimensions (the lip size seems the same). (But I guess anything is possible)
Had that same problem was told i needed new backing plates. My car was totalled the next week so i never figured out what it was lol.
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Old 09-26-2012, 09:14 AM   #190
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Is this an issue with 08+? I just changed my rear brakes and I'm getting a grinding/ rubbing noise from my brakes.
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Old 09-26-2012, 09:17 AM   #191
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Quote:
Originally Posted by JarrodRex View Post
Is this an issue with 08+? I just changed my rear brakes and I'm getting a grinding/ rubbing noise from my brakes.
First I've heard of it - but all you have to do is pull it apart again and look for the wear spot.
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Old 11-29-2012, 11:59 AM   #192
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found a wear spot in the same area as pictured on my 07 sti when i changed my wheel beaing, i thought it was rubbed from the bad bearing, however the bearing noise is now gone and i have a new noise at low speeds or just letting off the gas...would it be this area getting rubbed from the rotor? and is cutting that piece off a viable solution?
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Old 12-03-2012, 08:31 PM   #193
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I swapped to 4pot/2pots back in Aug and did the parking shoes as well. Everything was replaced. Shoes, rotors, pads, lines, etc. The rear dust shields were toast (rusted) so I just removed them since they were about to fall off anyways. My fear is wheel bearing but this thread gives me hope it's something simple. It's only in the right rear and sort of makes a "whomp whomp whomp" sound at low speeds. Car brakes fine, no issues there.

Any insight or should I just tear everything down and reinspect? Before I put it all back together I cleaned everything with brake cleaner and took a wire brush/grind disc to any rust areas and painted over them to try and prevent any future rust (ya right).
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Old 12-04-2012, 01:28 AM   #194
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Is this an issue with 08+? I just changed my rear brakes and I'm getting a grinding/ rubbing noise from my brakes.
I'm getting something similar on a 2010. I haven't heard the noise but feel a slight grinding a certain pressures. It has lessened but I can still detect it..
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Old 12-08-2012, 08:50 AM   #195
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My issue just went away after driving the car around for 2 days. I was waiting to see if I could tell where it was rubbing but never found anything.
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Old 12-17-2012, 04:01 PM   #196
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I had some rubbing/grinding on my 03 bugeye wagon with dba standard/slotted rotors.

Two possible causes:

I had done the h6 mod and there was a bit of the spot weld still sticking up after removing the dust shield

I had also replaced the parking brake hold down spring and cap with a duralast one, the pin of which was longer, as was the spring. It sat up just a bit more than the stock one on the other side. I shimmed the pin with a washer on the back side to even out the spring with the stock one.

Not sure if it was the spot weld, or the spring pin, but the grind is gone now.

If anyone has changed/replaced the parking brake, make sure the springs are pulled back below the level of the shoes.
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Old 12-21-2012, 06:16 PM   #197
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2002 WRX, 99K mi., former FL car (uggh, rust bucket): I think I am in the club now too. but my noise is a low, whirring sound, almost like when you blow across an empty beer bottle (or Zamfir's flute?), but just barely grindy. Only hear it faintly at low speed after a hard right hand turn after warmed up, not when cold.

I did the front rotors with centric OEM type this past summer, ATE blue fluid and all has been well brake-wise. Does seem to be coming from the rears which are still stock. We've had a lot of rain lately and it sits most weekends untouched (yeah,I know). fingers crossed it is this and not a bearing or CDiff bearing. will check over XMAS vacay.
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Old 05-15-2013, 07:13 PM   #198
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You guys are awesome! I just did a full rear brake job(calipers, pads, rotors) and got the dreaded scrape.

I tore it apart and saw the wear mark at 6 o clock and immediately thought the worst, bearings or suspension. I searched and found this thread and its hard to believe subaru hasn't atleast acknowledged this. So I'll be grinding tomorrow.

Thanks guys!



Car: 95 Impreza
Rotors: Wearever(I think) or other generic
150,000(owned since 50k) and this is the first time I've seen it.
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Old 05-15-2013, 07:50 PM   #199
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Quote:
Originally Posted by itkindaworks View Post
You guys are awesome! I just did a full rear brake job(calipers, pads, rotors) and got the dreaded scrape.

I tore it apart and saw the wear mark at 6 o clock and immediately thought the worst, bearings or suspension. I searched and found this thread and its hard to believe subaru hasn't atleast acknowledged this. So I'll be grinding tomorrow.

Thanks guys!



Car: 95 Impreza
Rotors: Wearever(I think) or other generic
150,000(owned since 50k) and this is the first time I've seen it.
Before you do any grinding, spray some naval grease up behind the plate and let it dissolve the rust for 5 minutes or so, and then spray it out thoroughly with water. Next, stick a long flat head screw driver or whatever fits in there that you can use as a scraper. You'll be amazed at how much rust comes out of there. This was all I did to fix this issue on my car last year and it's still good to go.
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Old 05-18-2013, 08:53 PM   #200
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Default Occasional grinding noise

I too have been noticing grinding noise. Bought car with 157,000 and now over 158,300. I just put in Gates timing belt kit with water pump. While under car draining the radiator, I noticed that the passenger side dust shield was in BAD shape. Obviously it had been hitting the rotor. Also looked like it was making contact with one of the ball joints. I broke off the loose pieces. If I need to do more trimming I will.

Apparently this is not a rare issue.
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