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New Pads are Touching Rotors

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Old 04-05-2006, 02:28 AM
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Default New Pads are Touching Rotors

I have a 98 SLE and I just replaced the front pads, calipers, and rotors. The calipers were lubed from the manufacturer so I just put them on. After bleeding I am unable to keep the pads from making contact with the rotors. I moved the car a couple of feet and noticed that contact is being made only on the outer 50% of rotor. The inner 50% of the rotor has surface rust and the out 50% has been rubbed off. Do the rotors simply need to be turned? I was under the impression that a decent rotor was good out of the box. Any help is greatly appreciated.
Thanks
Old 04-05-2006, 08:11 AM
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What do you mean by "just replaced"? Do you mean today, or you've been running the car for a couple of days?

Either way, as far as I know anyway, the surfaces should be parrallel (if the pads are in correctly), but there might be some "tolerance" issues that a day or two of use will take care of.

I just did the pads and rotors on my 98 SE (last weekend), and everything looks fine. No uneven wear/contact I've noticed, and no rust on anything yet.
Old 04-05-2006, 08:14 AM
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Pads need to bed properly, and rotors need a break-in period. There will always be a little error that works out in a few days of use.
Old 04-05-2006, 11:15 AM
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Concur with Will. IF your braking seems normal, drive it for a few days and hit the brakes hard on the freeway a few times. They'll seat.

Abnormal braking, tear it down and start over.
Old 04-05-2006, 01:36 PM
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I have driven the car once since I did the job. It was about a 5 minute ride and my top speed was 40 mph. I did about 4 or 5 stops from around 30 to 5 mph.

When I pulled back into the driveway the drivers side rotor was smoking and there was some discoloration on that outer part of the rotor. When I replaced the caliper I lost about half a cup of fluid but that air should have been bled out.

Im not as worried about the uneven pad wear as I am about the contact with the rotors.

Could it be a deteriorated brake hose that I have read about?
Old 04-05-2006, 01:52 PM
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When you installed the calipers, did you ensure they piston thingy was pushed all the way in? You most likely did, but I gotta ask...

As for the smoke, and maybe the discoloration, that was probably just "preservative" oil burning off the rotors.
Old 04-05-2006, 01:55 PM
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I always wash fresh rotors and pads in hot soapy (dish) water to remove the oil they put on them to keep them from rusting.
Old 04-05-2006, 02:02 PM
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Yeah I set the pistons back all the way and cleaned the pads and rotors with brake cleaner.
Old 04-05-2006, 02:07 PM
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Originally Posted by Bender
Yeah I set the pistons back all the way and cleaned the pads and rotors with brake cleaner.
brake cleaner won't clean them all the way. it takes dish soap. just a fyi. won't hurt anything, just smoke a little.


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