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Thread: mx83 big brake upgrade woes

  1. #1
    is certainly not a Automotive Encyclopaedia suss_slide's Avatar
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    Default mx83 big brake upgrade woes

    ok so i did the BA falcon disks and the skyline calipers upgrade to my cressida and now ive got a nasty wobble on my steering wheel. The wobble goes away when i brake though? and ive had the discs machined so what the hell could it be?
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  2. #2
    3RZFE-T Backyard Mechanic
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    Default Re: mx83 big brake upgrade woes

    sounds like the rotors are not sitting flush with the hubs

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    is certainly not a Automotive Encyclopaedia suss_slide's Avatar
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    Default Re: mx83 big brake upgrade woes

    After I bit more driving I've notices that the wobble comes and goes.
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  4. #4
    3RZFE-T Backyard Mechanic
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    Default Re: mx83 big brake upgrade woes

    yeah........... If the rotors are not central to the hubs you gonna get wobbles. The wheel studs are not designed to maintain the rotor to the hub thats the job of the hub its self.

    If its putting all its force onto the wheel studs they may fail

    Do you have a dial gauge? spin the rotor with the dial gauge set up and see how much movement your have

    Also check to see if all ya wheel weights are still there

  5. #5
    is certainly not a Automotive Encyclopaedia suss_slide's Avatar
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    Default Re: mx83 big brake upgrade woes

    how do i fix this?
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  6. #6
    Mobile Backyard Mechanic PeteH's Avatar
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    Default Re: mx83 big brake upgrade woes

    Silly question.......did you use a hubcentric spacer, to locate the disc on the hub?

  7. #7
    is certainly not a Automotive Encyclopaedia suss_slide's Avatar
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    Default Re: mx83 big brake upgrade woes

    haha yeah i did.
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  8. #8
    is certainly not a Automotive Encyclopaedia suss_slide's Avatar
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    Default Re: mx83 big brake upgrade woes

    anyone ? 321..
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  9. #9
    Backyard Fabricator Automotive Encyclopaedia
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    Default Re: mx83 big brake upgrade woes

    are the discs a tight fit on the hubcentric rings? are the back of the rings machined to clear the fillet where the disc face meets the locator face? Do the discs sit perfectly flat on the hub?

  10. #10
    Building Corollas Chief Engine Builder Cuzzo's Avatar
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    Default Re: mx83 big brake upgrade woes

    New discs, new pads?
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  11. #11
    is certainly not a Automotive Encyclopaedia suss_slide's Avatar
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    Default Re: mx83 big brake upgrade woes

    discs have been machined. some people have suggested it may need a wheel balance, i think its very odd that it needs a wheel balance RIGHT after i do a brake upgrade
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  12. #12
    Junior Member Backyard Mechanic
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    Default Re: mx83 big brake upgrade woes

    Have you checked that the wheel bearings have preload? Silly and basic question i know but sometimes the simple things tend to catch you out, sometimes with new wheel bearings they will 'wear in' and need readjusting soon after fitment.

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