What causes a dragging noise on tight turn for first drive of a day in a 360? | FerrariChat

What causes a dragging noise on tight turn for first drive of a day in a 360?

Discussion in '360/430' started by andrew911, Feb 9, 2010.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. andrew911

    andrew911 F1 Rookie
    Silver Subscribed

    Sep 8, 2003
    2,894
    Northern NJ
    I know there was a thread on this recently and I searched with no success....I've noticed when I back out of my garage the first time in a day (i.e. engine/car cold) and do a tight turn to get out of the garage, and then when making the 90 degree turn out my driveway (i.e. tight turn going slow speeds) there is a dragging type noise. It never occurs again. I'm not driving the car due to the winter, but in the spring will be getting it serviced. The car is a 2000 360 coupe. I got the car in November, so it's been colder the times I drove it (i.e. <60 degrees on a cold start, maybe even <50 degrees) if that makes any difference.

    Is this from low power steering fluid, air in the power steering fluid, older tires, suspension or something else? When it was mentioned in the prior f-chat post I saw but can't locate, it seemed to be a relatively common thing with 360s.

    I am getting it looked at in the spring for a bunch of service items (all fluids flushed including gearbox, inspection of suspension, check clutch operation, etc), and I'll be getting new tires as the passenger side front is now completely flat (must be a nail in there as it didn't hold air when I filled it- tires were old anyway and I was going to change), but I figured I'd research the issue on here just to know.

    The steering otherwise operates flawlessly. Love the car and can't wait to get her up to snuff and drive this spring! It's killing me that it's so cold out and another snow storm is about to come through...the only red thing in the garage I'll be starting up is the snowblower (which is technically orange) :)

    Thanks
    -Andrew
     
  2. PCA Hack

    PCA Hack Formula Junior

    May 9, 2008
    610
    Rancho Santa Fe, CA
    Do you notice any leaks from the power steering pump or rack? If not, ps fluid is probably either low or it just takes a minute or two for the fluid to come up to temp/pressure. Definitely doesn't sound like a suspension issue.

    Make sure the engine is warm when you check the level.
     
  3. m.roberts

    m.roberts Formula Junior

    Nov 2, 2009
    907
    USA
    We have had this discussion in here a few months ago relating to 430s. Mine does it too..

    Seems like it goes away after driving for about 200 yards or so after starting up. I think the steering pump just has to prime or something of that nature... it still seems to happen no matter how long I let the car warm up...

    I don't think it is anything to fret over.
     
  4. andrew911

    andrew911 F1 Rookie
    Silver Subscribed

    Sep 8, 2003
    2,894
    Northern NJ
    #4 andrew911, Feb 9, 2010
    Last edited: Feb 9, 2010
    No leaks from the car. It could be that the pressure/temp need a few seconds to come to temp like you say.

    Since you are "PCA Hack" (porsche club of america), you just made me think of something regarding my porsche. Since owning my 911 (1993) it has often not had any power steering assistance when backing out of the garage for the first few feet on the first start, then suddenly the power steering works and never any other issue. It has done this since I bought the car in 2002, and I never thought anything of it since the power steering worked fine otherwise. Never thought to ask about it on the 911, but with the Ferrari I ask about everything...guess I'm just overly cautious as service on the ferrari is a multiple of the porsche, or just becuase having an Italian car is so new to me.

    Both the 911 and 360 sit for a week+ between use, and it may be just that the pressure needs to build for a few seconds- I can live with that if it's the case, but will see if the ferrari mechanic says anything when he looks at it in the spring (and see what else people on here have to say of course- I wish I could find that old thread)
     
  5. andrew911

    andrew911 F1 Rookie
    Silver Subscribed

    Sep 8, 2003
    2,894
    Northern NJ
    Thanks Matt!
     
  6. DMaury

    DMaury Formula 3

    Mar 27, 2007
    1,993
    Ponchatoula, LA
    Is it coming from the front or the back of the car?


     
  7. raywong

    raywong Formula Junior

    Aug 29, 2004
    673
    Hong Kong
    Full Name:
    Raymond
    maybe from differential locking?
     
  8. MalibuGuy

    MalibuGuy F1 Veteran

    Sep 18, 2007
    5,902
    Recently decided to change my power steering fluid as I was noticing some noise and vibrations.

    My fluid was a few years old and had actually turned black. The mechanic was surprised.

    The fresh fluid resolved the noise and vibration.
     
  9. andrew911

    andrew911 F1 Rookie
    Silver Subscribed

    Sep 8, 2003
    2,894
    Northern NJ
    Front, almost like a tire or something is dragging- that type of nose/vibration

    I'll be changing the fluid this spring which may help it- while the timing belt and tensioners were done in September 2008, I don't see any record of the power steering fluid being changed, and last year was just an oil change.
     
  10. SfefVan

    SfefVan Guest

    Nov 28, 2008
    1,370
    Switzerland
    Full Name:
    Stef
    The thread about the same problem for the F430 is :

    http://www.ferrarichat.com/forum/showthread.php?t=266757

    I have the same problem and as it was written in the above thread it seems to be totally normal for such car as it does also on Porsche (non 4 wheel drive).

    "This skipping is due to the steering geometry and camber/toe setup from the factory. Totally normal! You will notice that it will skip/hop more if the wheels are turned at sharper angles."
     
  11. FerrariDublin

    FerrariDublin F1 Rookie

    Jun 14, 2009
    3,454
    Dublin, Ireland
    Full Name:
    Greg
    I understand this is referred to as "chatter" and you should get some search results with that keyword. I believe it's got to do with the Limited Slip Differential (LSD) and cold oil mixed with turning on full lock, typically most pronounced if also in reverse.

    Unless it's particularly severe I understand that it's a characteristic and not a cause for concern but some owners add a little friction modifier to their transmission oil which can reduce the effect somewhat (albeit with a resulting loss in the effectiveness of the LSD).

    Hope this helps and gives you a steer for further info.
     
  12. rimoore

    rimoore Formula 3

    Nov 18, 2004
    1,353
    Island in Maine
    Full Name:
    Richard Moore
    Check the top most part of your front fenders to see if the tires are catching the lip.
     
  13. andrew911

    andrew911 F1 Rookie
    Silver Subscribed

    Sep 8, 2003
    2,894
    Northern NJ
    Makes sense too- this seems to be a somewhat normal occurance.

    I'll check, but they are stock rims and stock tire sizes so I don't think that's it (plus it doesn't "seem" like that's the feel, but I'll check anyway)
     
  14. DMaury

    DMaury Formula 3

    Mar 27, 2007
    1,993
    Ponchatoula, LA
    Mine does that too when the tires are cold. Happens when I first start it up, turn the wheel then back out. For me, the sound is a cold hard tire tread skipping a bit on the concrete. Once the tires heats up a bit there's no sound. :)
     
  15. RayJohns

    RayJohns F1 Veteran
    Silver Subscribed

    May 21, 2006
    7,930
    West Coast
    Full Name:
    Ray
    +1

    It's probably the LSD locking briefly during the turn and scuffing the wheel on the ground for a second.

    Ray
     

Share This Page