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Pads rubbing just a little after pad/rotor install

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Old 06-30-2008, 03:13 PM
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thekinn
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Default Pads rubbing just a little after pad/rotor install

I did my first brake job this weekend and then went on my test drive. I notice that the pads are rubbing just a little while driving (without braking). The wheel would still spin when the car was up, but it would rub just a little. I hoped it would go away after the first 1 or 2 uses of the brakes. Maybe I'm being too cautious and should try to drive a little more to see if it works it's way out. I only drove about 1/10th of a mile not above 25mph.

However, I'm guessing this is because I reused my shims and shim covers. or I'm being too cautious. What do you think?

Powerslot - slotted rotors. Project Mu B-force pads. '06 OEM, non-brembo calipers.
Old 06-30-2008, 03:27 PM
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savvy
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i have the EXACT same problem. Does anyone know if we absolutely need to reuse the stock shims?
Old 06-30-2008, 03:40 PM
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kennyl5123
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I had the same problem with putting too much grease on those two pins and it created vacuum and pull the pad against the disc all the time.
Old 06-30-2008, 05:20 PM
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TreeFiddyZee
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Disc brakes always contact the rotors. Think about it. The calipers only push the pads in. There's nothing that I'm aware of the pulls the pads back out.
Once you get them bedded properly, you probably won't notice the rubbing.
Old 06-30-2008, 07:13 PM
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davidv
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Neither the pads or rotors are aligned to 1/100 mm. Tolerances are not like internal engine components. Give it 100 miles and see if it works itself out.
Old 06-30-2008, 08:44 PM
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SpoilsofWar
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If you can spin the wheels without difficulty with the car lifted, you dont have an issue. Pads are meant to contact the rotors constantly, just that they dont not apply pressure except when you're on the brake pedal.
Old 07-01-2008, 04:07 AM
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savvy
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What about the shims that came on the stock pads? Are those really necessary? What is the purpose of those anyways?
Old 07-01-2008, 06:48 AM
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thekinn
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Thanks a lot for the replies. Greatly appreciated. I'll post up an update in a few days.

Originally Posted by TreeFiddyZee
Disc brakes always contact the rotors. Think about it. The calipers only push the pads in. There's nothing that I'm aware of the pulls the pads back out.
Once you get them bedded properly, you probably won't notice the rubbing.
Originally Posted by SpoilsofWar
If you can spin the wheels without difficulty with the car lifted, you dont have an issue. Pads are meant to contact the rotors constantly, just that they dont not apply pressure except when you're on the brake pedal.
Originally Posted by davidv
Neither the pads or rotors are aligned to 1/100 mm. Tolerances are not like internal engine components. Give it 100 miles and see if it works itself out.
Old 07-01-2008, 07:24 AM
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TreeFiddyZee
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Originally Posted by savvy
What about the shims that came on the stock pads? Are those really necessary? What is the purpose of those anyways?
The shims are anti-rattle shims. If you don't have shims, you'll have a lot more noise.
Old 07-03-2008, 08:28 AM
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thekinn
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Default parking brake

I discovered that the noise I was hearing was my parking brake. I didn't back it off enough after replacing the rotors - It was disguising itself as pad to rotor noise. I loosened the parking brake up a few clicks on each side and the noise is gone now.

Thanks again for you replies.
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