430 - Can you help me identify this noise? | FerrariChat

430 Can you help me identify this noise?

Discussion in '360/430' started by Zed82, Jul 5, 2019.

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  1. Zed82

    Zed82 Formula Junior

    Sep 28, 2017
    490
    Sweden
    #1 Zed82, Jul 5, 2019
    It´s a rotating noise and i can hear it up to 4000 rpm. Then it probably gets too fast and drowned in exhaust sound. My Ferrari specialist checked it quickly today and found nothing weird under the car. He will check it more next week under the annual service.

    All the wheel bearings feel stiff, the output shafts feel ok and the boots are intact. We couldn´t find anything rubbing anywhere. The noise does not change regardless of gear or neutral.

     
  2. cpep

    cpep Formula Junior

    Nov 11, 2017
    399
    new york
    Full Name:
    CHARLIE
    #2 cpep, Jul 5, 2019
    Sounds like a wheel bearing to me. When he had it in the air did he put it in gear and spin the wheels?
     
  3. Zed82

    Zed82 Formula Junior

    Sep 28, 2017
    490
    Sweden
    #3 Zed82, Jul 5, 2019
    No, he didn´t. Maybe he can do it next week. He just rocked the wheels to check for play.
     
  4. bocaf430

    bocaf430 Formula 3

    Jun 10, 2014
    1,361
    LI, boca raton
    #4 bocaf430, Jul 5, 2019
    maybe a bad tire?
     
  5. Zed82

    Zed82 Formula Junior

    Sep 28, 2017
    490
    Sweden
    #5 Zed82, Jul 5, 2019
    Recently fitted another set of wheels with the same kind of tires (Pirelli Corsa). Same issue with the old ones.
     
  6. cpep

    cpep Formula Junior

    Nov 11, 2017
    399
    new york
    Full Name:
    CHARLIE
    #6 cpep, Jul 5, 2019
    I've seen bearings make noise without having any play in them. Especially the type of hub bearings on these cars. they pit the balls and make noise without being totally worn to the point of having play.
     
    Zed82 likes this.
  7. Flyingbrick242

    Flyingbrick242 Formula Junior
    Silver Subscribed

    Feb 26, 2017
    604
    Northern AZ.
    #7 Flyingbrick242, Jul 5, 2019
    When wheel bearings sealed or tapered start to make noise you can sometimes get them to change frequency when shifting the vehicle load from one direction to another...slow sweeping to left or right to load or unload rolling resistance.
    The corner that is unloaded is the right front when making sweeping rights visa versa to the left.
    Most sealed type bearings even when noisy will not have any play..can be very misleading
    Hope this helps.
     
    Zed82 likes this.

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