348 single or twin plate clutch | FerrariChat

348 single or twin plate clutch

Discussion in '348/355' started by mab53, Oct 8, 2006.

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  1. mab53

    mab53 Rookie

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    Hi,

    Can anyone tell me please which 348's have single plate and which have twin plate clutches ? Mine is an April 1992 UK tb model. Can you convert a twin to a single ?

    Thanks,
    Michael.
     
    mab53, Oct 8, 2006
    #1
  2. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    The early 348's had the twin plate clutch. My car is a 12/91 and it has the twin plate in it. They changed sometime in 1992. I think it was late 92, but not 100% sure sorry. I have the info somewhere here. You can change...........but will need to source flywheel ect...... Why would you want to change to single plate? Stick with the twin plate. Its good enough. :)
     
    PAP 348, Oct 8, 2006
    #2
  3. ernie

    ernie Two Time F1 World Champ Lifetime Rossa Owner

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    I think it was the '93 year cars that went to the single plate. I'm not sure on the build number though.
     
    ernie, Oct 8, 2006
    #3
  4. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    PAP 348, Oct 8, 2006
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  5. Ricambi America

    Ricambi America F1 World Champ Sponsor Owner

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    Ricambi America, Oct 8, 2006
    #5
  6. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    Shiiiiiiit! Sorry mate. Did you fix the other slavebody one for me too please? :eek::eek:
     
    PAP 348, Oct 8, 2006
    #6
  7. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    Ah, I think I fixed it. Give that a try mate. :)
     
    PAP 348, Oct 8, 2006
    #7
  8. chrisx666

    chrisx666 Formula Junior

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    Hi Michael. My 92' Euro (#92156) has the single plate clutch (it's a 'battery in the front' car).
    Image Unavailable, Please Login
     
    Last edited by a moderator: Sep 7, 2017
    chrisx666, Oct 8, 2006
    #8
  9. No Doubt

    No Doubt Seven Time F1 World Champ

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    1. 05/30/91 differential side seal—production improvement
    2. 05/30/91 Bosch starter motor changed to Nippon—production improvement
    3. 10/10/91 cam seal housing modification—reduced oil leakage
    4. 10/10/91 double plate-clutch changed in favor of single-plate clutch—production improvement
    5. 10/10/91 new alignment specs—improved handling
    6. 10/10/91 improved mounting of front bonnet grill to address warpage
    7. 10/10/91 front suspension shocks and springs—production improvement
     
    No Doubt, Oct 8, 2006
    #9
  10. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    Mine musnt have been changed then. Mine is a 12/91 and still has the twin plate clutch assembly. :p
     
    PAP 348, Oct 9, 2006
    #10
  11. No Doubt

    No Doubt Seven Time F1 World Champ

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    Yeah, mate. what/when they say and what/when they do...may be different!
     
    No Doubt, Oct 9, 2006
    #11
  12. No Doubt

    No Doubt Seven Time F1 World Champ

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    Hey Chris, would you happen to know if your single plate clutch had (Borg & Beck) part # OCL3403000 stamped on it?
     
    No Doubt, Oct 9, 2006
    #12
  13. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    Maybe so. :D Or they didnt feel like doing it on the day. :D
     
    PAP 348, Oct 9, 2006
    #13
  14. chrisx666

    chrisx666 Formula Junior

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    It's a Valeo part ND, #174047 (pressure plate anyway).
     
    chrisx666, Oct 9, 2006
    #14
  15. GeorgW

    GeorgW Karting

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    Hi,
    Ferrari changed at 10/10/91 the 348 to single-plate clutch from chassis-# 84793 on, but with the exception of USA, Canada and RHD cars.

    Regards, Georg
     
    GeorgW, Oct 9, 2006
    #15
  16. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    Hello Georg :)

    Do you know why they didn't bother with those versions?
     
    PAP 348, Oct 9, 2006
    #16
  17. GeorgW

    GeorgW Karting

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    Hi,
    sorry, I don´t have any further information than this service bulletin.

    Regards, Georg
    View attachment 028684.pdf
     
    Last edited by a moderator: Sep 7, 2017
    GeorgW, Oct 9, 2006
    #17
  18. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    Thanks Georg ;)
     
    PAP 348, Oct 9, 2006
    #18
  19. Bullfighter

    Bullfighter Two Time F1 World Champ Lifetime Rossa Owner

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    Yeah that fixed the link. Didn't fix the prices though. Could just be my version of Internet Explorer sticking zeroes onto the end of things again.
     
    Bullfighter, Oct 9, 2006
    #19
  20. PAP 348

    PAP 348 Ten Time F1 World Champ Lifetime Rossa Owner

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    HA! :D:D
     
    PAP 348, Oct 9, 2006
    #20
  21. ernie

    ernie Two Time F1 World Champ Lifetime Rossa Owner

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    And there you have it.
     
    ernie, Oct 12, 2006
    #21
  22. Dr.T348

    Dr.T348 Formula 3

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    I had test drove a US version '92 MY and it had the dual plate clutch.
     
    Dr.T348, Oct 12, 2006
    #22
  23. ernie

    ernie Two Time F1 World Champ Lifetime Rossa Owner

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    So maybe it was the U.S. cars that got the single plate clutch in '93?
     
    ernie, Oct 13, 2006
    #23

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