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ferrari 348 clutch

Discussion in 'Technical Q&A' started by philjill, Jan 1, 2007.

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  1. philjill

    philjill Rookie

    Dec 15, 2006
    21
    NOTTINGHAM ENGLAND
    Full Name:
    PHIL READ
    #1 philjill, Jan 1, 2007
    my 348 clutch is slipping, does this mean that the clutch needs replacing, or is thier some way of adjusting it also is there anything i can do about the clutch pedal it is so heavy.
     
  2. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
    18,221
    Twin Cities
    Full Name:
    Tim Keseluk
    #2 2NA, Jan 1, 2007
    If it used to grip and now it slips it is time for a new one (the bad news). It's not really a difficult job and doesn't require much disassembly but does require the fabrication or purchase of a couple of special tools (those pesky ring nuts that Ferrari uses and a pilot tool to line up the multi-disc assembly). If you're near Minnesota I could do it for you.

    As far as pedal pressure, it's one of the prices you pay for driving the "F" word. Just like not having enough room for both feet if your shoes are bigger than a 7.
     
  3. chrisx666

    chrisx666 Formula Junior

    Dec 6, 2004
    562
    YorkshireUK
    Full Name:
    Chris B
    #3 chrisx666, Jan 1, 2007
    The pedal gets heavy when the clutch is worn out, there is no adjustment. When I put a new disk in mine I couldn't believe how light it was after.
     
  4. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
    72,740
    Vegas+Alabama
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    Mr. Sideways
    #4 No Doubt, Jan 1, 2007

    It depends. FerrariFixer says that 348 clutches are shipped from the factory when new with clutch pack shims. Presuming no undue wear or damage to the clutch/pressure plate/fingers/flywheel/bearings/seals during the average duty cycle, then 348 clutch life can later be extended after normal usage by simply removing these (or using shorter) clutch pack shims.

    If the clutch is too worn or if you've got a fluid leak inside, then the above adjustment is not a possibility.

    For a pictorial on replacing the 348 clutch, go here: http://www.the348.com/tech/Flywheelgrease348ts1990.htm

    For instructions and more info on the clutch, go here: http://www.the348.com/tech/348.html#clutch
     
  5. No Doubt

    No Doubt Seven Time F1 World Champ

    May 21, 2005
    72,740
    Vegas+Alabama
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    Mr. Sideways
    #5 No Doubt, Jan 1, 2007
  6. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Dec 7, 2003
    16,451
    Winston Salem, NC
    #6 Ricambi America, Jan 1, 2007
    What year car? Single disc or dual-disc?


    -d
     
  7. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,220
    Mount Isa, Australia
    Full Name:
    Pap
    #7 PAP 348, Jan 1, 2007
    It is a hydraulic clutch, so it cannot be adjusted. ;)
    Only small pedal adjustments can be made as No Doubt mentioned. But that wont help you with this problem. :)


    Yeah.............you can toughen up. :p:p
     
  8. ferrarifixer

    ferrarifixer F1 Veteran
    BANNED

    Jul 22, 2003
    8,520
    Melbourne
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    Phil Hughes
    #8 ferrarifixer, Jan 1, 2007
    the nature of a diaphragm clutch is that it gets heavier as it wear out... a new one can feel significantly lighter than a worn one....

    plus you may have some other source of friction in the mechanism somewhere...

    Fitting a very slightly smaller diameter (maybe 1 mm smaller?) master cylinder would help.. a 348 overthrows itself anyway... I haven't sourced one, but it would be worth the effort to find one.
     

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