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Thread: ::.. Rotor Runout

  1. #1
    Join Date
    Dec 2003
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    Default ::.. Rotor Runout

    what is the acceptable rotor runout? I checked my front rotors and one is about .001 and the other has about a 5 inch high spot .002.

    Slow and cold speed you cant tell but when hot and braking I get a shimmy to the max at anyspeed like from 100 - 30 mph.

    New front end parts and bushings, everythings new (ish) and tight.

    I ran the lugs tight on the rotors so thats not an issue and its clean betwen the rotors and hub.

    Are my new Brembo rotors fubared?
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

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  2. #2
    Join Date
    Jan 2004
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    4,150

    Default .2 millimeters or .0078 thousandths of an inch is the

    maximum allowed checked out near the outer diameter of the rotor. I'd say your well within the limits for runout, I take the rotors off and look for hot spots and measure thickness at a number of points around it to see ifyou have any big variations in thickness.



    Quote Originally Posted by 632 Regal
    what is the acceptable rotor runout? I checked my front rotors and one is about .001 and the other has about a 5 inch high spot .002.

    Slow and cold speed you cant tell but when hot and braking I get a shimmy to the max at anyspeed like from 100 - 30 mph.

    New front end parts and bushings, everythings new (ish) and tight.

    I ran the lugs tight on the rotors so thats not an issue and its clean betwen the rotors and hub.

    Are my new Brembo rotors fubared?


  3. #3
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    Default

    im sure somethings up with the high spot, you cant really cut these so should I be shopping for a new set?
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  4. #4
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    Hey! Use a different delimiter You're confusing me. I use that to distinguish my posts at a glance without using Subscribed Threads lol!
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  5. #5
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    Default

    Hahaha...I like it tho.
    Quote Originally Posted by Qube
    Hey! Use a different delimiter You're confusing me. I use that to distinguish my posts at a glance without using Subscribed Threads lol!
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

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