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weird braking after brake replacement

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Old Jan 30, 2012 | 03:46 PM
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Icon6 weird braking after brake replacement

So it was time to change my brakes and so I did, I took the front disks to get resurfaced/turned, and put the new brakes back on with disk brake quit liquid and the next day I checked the disks and they look weird, the inner half of the disk (center to mid disk) is still blank just like when I picked up the disks, the outer half is already marked by the gripping pads so I dont know why that happens. Also when braking from like 15mph and under, the car shakes and with a sudden brake (2mph or less) the front passenger corner dives first than the driver's, anybody have any advice or ideas why this is happening? The car is a 2000 lx sedan. I bled the drums n disks when I finished and a lot of bubbles came out. Thanks.
PICS of what I mean:



Last edited by lxdriver; Jan 30, 2012 at 04:21 PM.
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Old Jan 30, 2012 | 04:39 PM
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Dogginator's Avatar
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Default Re: weird braking after brake replacement

Measure the thickness at the outer edge and at the inside of the swept area.
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Old Jan 31, 2012 | 03:02 PM
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lxdriver's Avatar
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Default Re: weird braking after brake replacement

Yeah but any reason as to why the pad only grips the outer edge? If that is the case.
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Old Feb 1, 2012 | 12:59 PM
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Default Re: weird braking after brake replacement

We had this same issue with brand new rotors and pads on our car. I think you might have two issues going on here..

1. There is a possibility of having a rotor or pad that isnt perfectly flat. We had this issue on our race car. We ended up changing out our pads for a race and instantly we had full rotor/pad contact again, so we are thinking that our first set of pads were just slightly uneven inside to outside.

2. For your "diving to one side" motion that you are describing, I would suggest a good bleed to start with(Correct sequence is passenger rear, driver rear, passenger front, driver front). If it still does it, check that you dont have a stuck caliper.
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Old Feb 1, 2012 | 03:05 PM
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Default Re: weird braking after brake replacement

Originally Posted by lxdriver
Yeah but any reason as to why the pad only grips the outer edge? If that is the case.
It could be many things. I would check to see if the rotor is thicker at the outer edge. The parallelism is only as good as the machine that cut it.

Brakepros.com suggestion could also be correct. You simply need to measure the geometry to locate the issue.
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