TR Creaking, snapping noise from right rear | FerrariChat
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TR Creaking, snapping noise from right rear

Discussion in 'Boxers/TR/M' started by Trahanm, Jul 7, 2015.

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  1. Trahanm

    Trahanm Karting

    May 10, 2013
    75
    Rochester Hills MI
    Full Name:
    Marc Trahan
    #1 Trahanm, Jul 7, 2015
    Hello Folks,

    I have a 91 TR with 8k miles that is in very good condition, all services up to date and the differential has been ungraded, etc.

    The car has had a snapping / creaking noise from the right rear when you let the clutch out. It does it once just when the drivetrain is loaded and the car starts to move. It will also do it sometimes when you unload the drivetrain while stopping.

    It sounds like it is in the suspension, or perhaps the frame or body is flexing.

    I have spent a lot of time trying to finds the source of the noise. There are no leaks, all suspension bushings look good, and the frame connectors where the rear bolts to the main frame are tight. The car has had the noise for the last 1000 miles. The car drives very well.

    When it first started I suspected the differential, and I had the differential replaced with the gripper unit from Ricambi. The noise never changed. and the differential that came out of it was perfect, no cracks.

    Has anyone heard of this before, or can offer any advice.

    Marc
     
  2. Jaguar 15

    Jaguar 15 Formula 3

    Mar 27, 2013
    1,837
    Hunt. Bch/Palm Dsrt/Virginia
    Full Name:
    Jim Crawford
    #2 Jaguar 15, Jul 7, 2015
    Wheel bearings worn? But that would be more a clicking sound.
     
  3. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    9,548
    southwest Germany, France ( Alsace ) and Thailand
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    romano schwabel
    #3 turbo-joe, Jul 7, 2015
    may be the right inner or outer drive shaft joint? put the car on a hoist and inspect.
     
  4. Melvok

    Melvok F1 World Champ
    Owner Silver Subscribed

    Jul 25, 2008
    14,268
    Amersfoort, The Netherlands, Europe.
    Full Name:
    Mel
    #4 Melvok, Jul 8, 2015
    Marc, post us some pics of the (condition of the) bushings and the leevers please.

    Can also be a wheelbearing ...
     
  5. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    9,548
    southwest Germany, France ( Alsace ) and Thailand
    Full Name:
    romano schwabel
    #5 turbo-joe, Jul 8, 2015
    what please are leevers?
    you mean levers?
     
  6. lear60man

    lear60man Formula 3

    May 29, 2004
    1,829
    Los Angeles
    Full Name:
    Christian
    #6 lear60man, Jul 8, 2015
    So the sound appears when the drivetrain/suspension is being loaded. I would get a TRUSTED partner and have him put on the parking brake, put in gear and let out the clutch slightly. Just enough to load up the drive train and make the car want to go fore ward. Stand off to the side with the engine cover open and listen. Mystery noises suck.
     
  7. Mr.Chairman

    Mr.Chairman F1 Rookie

    Mar 21, 2008
    2,987
    New Jersey
    Full Name:
    Robbie
    #7 Mr.Chairman, Jul 8, 2015
    This may sound crazy. Check your right front. When I had my b*tch I swore I heard something from the right rear under load. Crazy but it was the right front wheel bearing and the right front caliper inner pistons were frozen. I know it makes no sense but give a look see. Good time to check things over anyway.

    R
     
  8. Melvok

    Melvok F1 World Champ
    Owner Silver Subscribed

    Jul 25, 2008
    14,268
    Amersfoort, The Netherlands, Europe.
    Full Name:
    Mel
    #8 Melvok, Jul 9, 2015
    Last edited by a moderator: Sep 7, 2017

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