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Old 09-17-2014, 02:18 AM   #1
C-redfly

 
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Warped rotor?

shortly after I installed my aftermarket rotors, I've been experiencing a vibration in my steering wheel when braking. The faster I'm going, the more It vibrates when I brake. Even if I simply tap the brakes, I feel the vibration. So I'm wondering how do rotors get warped and what happens to the rotors when they get warped. Thanks in advance for any replies.

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Old 09-17-2014, 08:35 AM   #2
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Did your break in your new rotors and pads properly?

Here is some info on brakes, long read but very informative
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Old 09-17-2014, 10:16 AM   #3
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if you are 100% certain that the rotors are installed on to the hubs with no debris in between them, then i would start with loosening the wheels and retorquing them with a torque wrench in a star pattern. If you didn't torque them it can cause this, if you have aftermarket wheels they are more prone to this, and of course it's possible it's a defective rotor, but that's not very common.
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Old 09-17-2014, 01:31 PM   #4
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Quote:
Originally Posted by zfuzz View Post
Did your break in your new rotors and pads properly?

Here is some info on brakes, long read but very informative
The pads where low mileage used from a new ZL1 so I didn't get to break them in and the rotors I didn't know I had to bed them. The link had a lot of good info. And I do recall the vibration starting after I did a emergency breaking and I really had to slam on the breaks.





Quote:
Originally Posted by Rob@WretchedMS View Post
if you are 100% certain that the rotors are installed on to the hubs with no debris in between them, then i would start with loosening the wheels and retorquing them with a torque wrench in a star pattern. If you didn't torque them it can cause this, if you have aftermarket wheels they are more prone to this, and of course it's possible it's a defective rotor, but that's not very common.
I'm getting new tires all around tomorrow and they will be road force balanced and I'll have them torque them rather then use the air gun.

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Old 09-17-2014, 03:29 PM   #5
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Sounds like the rotors/calipers may not have been installed properly or are slightly out of alignment. I would start there before worrying about them being warped.
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Old 09-17-2014, 03:50 PM   #6
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In the SS Brembo upgrade kit instructions, they make a big deal about cleaning the rust off the hub at the rotor junction BEFORE installing the new rotors. Make sure to do that.

I was always taught if you feel the shake in the steering wheel, it's the front rotors/pads/calipers. If you feel it in the brake pedal, it's the rear rotors/pads/calipers.
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