GIANT mystery squeal from pass. rear wheel | FerrariChat
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GIANT mystery squeal from pass. rear wheel

Discussion in '348/355' started by gus355, Aug 19, 2014.

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  1. gus355

    gus355 Formula Junior

    Aug 3, 2011
    569
    B.C. and WA
    #1 gus355, Aug 19, 2014
    OK, tonight I was on my way home after driving about 20 blocks I turn a corner and the rear wheel starts making a HUGE squealing/grinding, cyclic type noise - my first thought was "Oh boy, the engine's gonna seize"

    Well I realized it was the wheel, I shut the engine off while rolling and put the clutch in, it kept making the same sound, I then stopped and started to roll and the sound was still there - I drove another block and the noise faded - another block and it was gone.

    Drove for another 15 min at all different speeds and no noise.

    any ideas?
     
  2. vvassallo

    vvassallo F1 Veteran

    Aug 4, 2006
    8,328
    Palos Verdes
    Full Name:
    Vince V
    #2 vvassallo, Aug 19, 2014
    Brake pads? Brake dust screen?
     
  3. cuneo

    cuneo Formula 3
    Silver Subscribed

    Nov 20, 2006
    2,471
    #3 cuneo, Aug 19, 2014
    Turning corner says bearing to me... Good luck!
     
  4. ghardt

    ghardt Formula 3

    Apr 18, 2004
    1,260
    Texas
    Full Name:
    Jerry
    #4 ghardt, Aug 19, 2014
    Sounds typical of a wheel bearing.
     
  5. whyte

    whyte Formula Junior

    Apr 25, 2006
    409
    Merritt Island, FL
    Full Name:
    John C
    #5 whyte, Aug 20, 2014
    Parking brake out of adjustment, not fully disengaged?
     
  6. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,577
    San Carlos, CA
    Full Name:
    Mitchell Le
    #6 yelcab, Aug 20, 2014
    Here is how I would go about it.

    1. Jack up the rear, remove the wheel.
    2. Inspect the pads, caliper for wear, sign of freezing up.
    3. Inspect the CV joint for leaky boots
    4. Remove the rear rotor, inspect the parking brake mechanism, lube anything needs lubricating.
    5. Inspect the hand brake mechanism for binding.

    If all is well, put it back. Drive it, if the noise comes back, then what is left is your wheel bearing.
     
  7. Andy 355

    Andy 355 Formula Junior

    Jun 2, 2013
    434
    Sydney
    #7 Andy 355, Aug 22, 2014
    Here is what i have seen about a dozen times in my 25 plus years of spinning spanners. Sometimes a tar covered stone will flick up and land fair in the calliper and scream like blue murder for about 15 mins. It either gets munched up or just drops out as easily as it got in there. These little stones make one heck of a noise!!
     
  8. vvassallo

    vvassallo F1 Veteran

    Aug 4, 2006
    8,328
    Palos Verdes
    Full Name:
    Vince V
    #8 vvassallo, Aug 22, 2014
    This is a good reminder to not overthink it right now. I have about 14 years with these cars and have not had to replace a bearing. Not that it doesn't happen, but bearing death in our low mileage cars is rare. If you had 80K miles maybe more likely. Or Ernie's car. ;)
     

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