Suspension & Brakes Theory, alignment, spring rates....

rotor wobbling?

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Old Feb 18, 2010 | 05:06 PM
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spens 91 Ef's Avatar
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Default rotor wobbling?

i took my complete left suspension off to look for anything bent because im having camber and caster issues on my left side i notice my rotar can be moved back and forth a bit even with the screws in and 2 lugnuts on this doesnt seem normal to me what could it be? just something lose?

Last edited by spens 91 Ef; Feb 18, 2010 at 06:24 PM.
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Old Feb 18, 2010 | 05:45 PM
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Default Re: rotar wobiling?

The caliper or the rotor? Title has "rotar", but thread has caliper.

The caliper is on sliding pins, and needs to be able to move to use both brake pads.
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Old Feb 18, 2010 | 06:25 PM
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Default Re: rotar wobiling?

my bad its the rotar
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Old Feb 18, 2010 | 06:28 PM
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Default Re: rotar wobiling?

put your tire back on and grab it from top and bottom and shake it just to pick up the slack. If there is play found, usually this means there is either play in the wheel bearing or balljoints which need to be replaced. If u shake it side to side, either the tie rod has play in it or the wheel bearing again. check your bushings as well. The caliper is floating so it will move on the sliders. As for rotor wobble. Does it shake the steering wheel while braking? if so, your rotors are warped. Grab a micrometer and measure them and see what is nominal and discard.
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Old Feb 19, 2010 | 05:35 AM
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Default Re: rotor wobbling?

thread title spelling fixed, because I had NO idea what it was before I came in here to look
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Old Feb 19, 2010 | 08:44 AM
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Default Re: rotor wobbling?

More than likely a wheel bearing issue. Taking my knuckle (90 Civic LX) into the Acura dealership this afternoon to have a new one pressed in. Same exact issue.
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Old Feb 19, 2010 | 04:59 PM
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Default Re: rotor wobbling?

alrite i might pick up a new 1 it has a stripped lug nut too, could the excessive camber and caster be somewhat connected to the bearing? it brakes just fine with no shaking, my bad on the spelling

Last edited by spens 91 Ef; Feb 19, 2010 at 05:23 PM.
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Old Feb 20, 2010 | 06:56 AM
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Default Re: rotor wobbling?

I'm in agreement with the others. Sounds like a bad wheel bearing. The rotor rides on the hub and the hub is secured by the wheel bearing. So play in the rotor is most likely due to the wheel bearing.

Also, since the bearing secure the hub, and the hub secures the tire, a severely damaged bearing could cause alignment issues. Although I would think you would have noticed a sound or shaking if the bearing was that far gone.
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Old Feb 20, 2010 | 02:47 PM
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spens 91 Ef's Avatar
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Default Re: rotor wobbling?

there has been recently a scratching noise at first i thought it was the brakes but it doesnt seem to get worse when i push on the brakes and the pads are still pretty new
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Old Feb 21, 2010 | 09:54 AM
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Default Re: rotor wobbling?

A wheel bearing usually "roars". The faster you go, the louder the roar. Another way to determine if it's a wheel bearing, does the sound stop (or simply lessen) in a turn? If it does, this is because its putting constant sideways pressure on the bearing not allowing it to wobble.
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Old Feb 21, 2010 | 12:42 PM
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Default Re: rotor wobbling?

im not really sure i cant drive my car to see
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