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360 squeaky timing belts

Discussion in '360/430' started by dkilka, Sep 30, 2013.

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  1. dkilka

    dkilka Formula Junior

    May 8, 2007
    289
    Australia
    #1 dkilka, Sep 30, 2013
    I have always had a squeaky timing belt(s) when the car is cold since they were changed 2 years ago. However today I noticed that they still squeak even when the engine is warm. This noise used to disappear once the car warmed up and I assumed it was normal as tolerances changed as things warmed up. My question is, Is this normal? Do the 360 belts squeak? If not what is the issue?

    Car is a 2000 model 360 6spd. Tensioner bearings were replaced with Hill engineering items at the last belt service approx 2 years ago. Car has only traveled 3500 miles since then.

    Advice appreciated as I'm now concerned that maybe I shouldn't be driving the car with this noise. Last belt change was performed at authorised Ferrari dealer.
     
  2. vrsurgeon

    vrsurgeon F1 World Champ
    Silver Subscribed

    Dec 13, 2009
    16,439
    Charleston, SC
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    Curt
    #2 vrsurgeon, Sep 30, 2013
    A squeaky timing belt (and I presume you've taken the back panel off and listened up close) would make me VERY nervous. Suggests a bearing or something contacting the belt. Both cases would not make me very comfortable.

    If it's a pulley on the serpentine belt.. meh. timing belt.. I'd look at it.
     
  3. bball16

    bball16 F1 Rookie
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    Dec 2, 2011
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    NY LI FtL
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    Mike
    #3 bball16, Sep 30, 2013
    No squeak on mine.
     
  4. Trent

    Trent Formula 3

    Dec 10, 2003
    2,013
    Indialantic, FL
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    Trent
    #4 Trent, Sep 30, 2013
    I am of no use to living organic matter, but here goes: My 308 had squeaky belts for a decade. I finally figured out it was the AC compressor belt, and just sounded like the cam belt. Always went away when it was warm. Caused 24.3 embarrassing moments in my otherwise sublime existence.

    +1; Make sure its the cam belts. If cam belts, have a pro check-it-out. Too high risk vs reward.
     
  5. dkilka

    dkilka Formula Junior

    May 8, 2007
    289
    Australia
    #5 dkilka, Sep 30, 2013
    Thanks guys, it could be the A/C / alternator belt. Its coming from that general area but I have not pinpointed exactly where.

    I'll get it booked in and looked at.
     
  6. 24000rpm

    24000rpm F1 Rookie

    Aug 31, 2012
    4,650
    China and California
    #6 24000rpm, Oct 1, 2013
    last time I pinpointed a belt noise is to do the following:

    while the engine is running, sprinkle a little water onto whatever belt you suspected and if that stops the noise, then that's what it is.

    hope this helps
     
  7. Trent

    Trent Formula 3

    Dec 10, 2003
    2,013
    Indialantic, FL
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    Trent
    #7 Trent, Oct 1, 2013
    Its shady tree advice, but I like it!

    ...and if you dont find the noise source, at least your engine will be clean ;)
     
  8. dkilka

    dkilka Formula Junior

    May 8, 2007
    289
    Australia
    #8 dkilka, Oct 4, 2013
    Thanks Guy's,
    I will actually try this as I can get into the top of the belt area to be able to spray each belt with a little water. I cannot access the serpentine belt very well, but if I spray both timing belts and the noise is still there I assume it has to then be coming from the serpentine belt by a process of elimination.
     
  9. Stout

    Stout Formula Junior

    May 9, 2013
    259
    Helotes, TX
    Full Name:
    Victor
    #9 Stout, Oct 4, 2013
    We used to use hair spray to permanently stop squeaky belts. I have no idea why it works.
     
  10. 24000rpm

    24000rpm F1 Rookie

    Aug 31, 2012
    4,650
    China and California
    #10 24000rpm, Oct 4, 2013
    seriously, I wouldn't do that.

    I will spray on the serpentine belt, its not that difficult to access....


     
  11. Kevin Rev'n

    Kevin Rev'n Two Time F1 World Champ
    Owner Silver Subscribed

    Nov 29, 2009
    24,329
    Honolulu
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    Kevin
    #11 Kevin Rev'n, Oct 4, 2013
    I would drive it to the last dealer who worked on car and let them tell you what it is.
    edit: those tests above sound like a good first step though!
     

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