vibration when braking f360 | FerrariChat

vibration when braking f360

Discussion in '360/430' started by 3s-ge, Sep 11, 2018.

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  1. 3s-ge

    3s-ge Karting

    Jun 23, 2012
    163
    Full Name:
    Alex
    Hi there

    I had a strong vibration on steering wheel when i braking and I replaced the front brake discs.
    The vibration of the steering wheel is gone but the vibration on the body still was, then I replaced the rear discs but the problem did not go away.
    I took off all the disks and cleaned the hubs I thought that there was rust and the disk was crooked but the problem remained.

    In what a problem?
    crooked hub?
     
  2. mello

    mello F1 Veteran
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    Jul 12, 2013
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    Steve
    Check the engine/transaxle mounts.
     
  3. 3s-ge

    3s-ge Karting

    Jun 23, 2012
    163
    Full Name:
    Alex
    vibration as from warp of disk
     
  4. JoeTSI

    JoeTSI Formula 3
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    Dec 16, 2015
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    Joe K.
    I'd also inspect balljoints as well as the aforementioned mounts. How long was the car sitting? Possibility as well the tires are either flat-spotted, or maybe in need of balancing.
     
  5. 3s-ge

    3s-ge Karting

    Jun 23, 2012
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    Alex
    balljoints - ok
    mounts - ok
    tires and balancing here are not to blame
     
  6. mello

    mello F1 Veteran
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  7. Kevin Rev'n

    Kevin Rev'n Two Time F1 World Champ
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    Nov 29, 2009
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    Did you carefully hand torque the bolts that hold the wheel on to the correct spec.? No air tools!
     
  8. 3s-ge

    3s-ge Karting

    Jun 23, 2012
    163
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    Alex
    I thought about it and removed the brake discs and did not see the problems at the hub from the bolts
     
  9. Skidkid

    Skidkid F1 Veteran
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    Aug 25, 2005
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    John Zornes
    So here is a stupid idea. Have you checked the wheel mounting surfaces to make sure that they are all smooth and clean? IF you have something stuck in the wheel or hub it will make the wheel slightly out of true to the rotation and it would feel like a balance issue. Well, kind of. It would actually wobble but it would probably feel like balance.
     
  10. 3s-ge

    3s-ge Karting

    Jun 23, 2012
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    Alex
    Any unbalance will be at speed not at braking
     
  11. JoeTSI

    JoeTSI Formula 3
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    Dec 16, 2015
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    If your issue is only under braking, and it is causing pulsating, then I would verify your rotors are indeed flat. If you overtorqued your wheels after the new rotors, it can cause them to warp (ask me how I know this). I would also check to ensure the caliper bolts are tight as well and verify the pads are installed correctly.
     
  12. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    Check the discs for runout with a clock gauge, also check the caliper pistons are moving freely
     
  13. 3s-ge

    3s-ge Karting

    Jun 23, 2012
    163
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    Alex
  14. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    26,420
    socal
    Something wrong
    Wheel bearings
    Install error
    Pad transfer
    Rotor warp
    Bad shock
    Bad bushings
    Steering rack
    Wheel balance (force balance)
    Bent wheel
    ABS
    Bad tire
     
    Skidkid likes this.
  15. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    5,680
    Central NJ
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    Dominick
    Were disks bed in properly ?




    Sent from my moto x4 using Tapatalk
     
  16. 3s-ge

    3s-ge Karting

    Jun 23, 2012
    163
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    Alex
    How can to install them incorrectly?
     
  17. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    Dominick
  18. Skidkid

    Skidkid F1 Veteran
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    Pad transfer, that is a likely candidate if this is a sudden/new conidiation. Good catch.
     
  19. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    As I suggested ..rebedding will eliminate that issue .. follow the link that I posted above

    Sent from my moto x4 using Tapatalk
     
    Zcobra1 likes this.

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