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revs

Discussion in '348/355' started by Oengus, Nov 6, 2008.

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  1. Oengus

    Oengus F1 World Champ
    Rossa Subscribed Silver Subscribed

    I took my 355 out tonight for a quick spin.........
    Once she was warmed up I got on the throttle for max rpms.
    When I shifted from 1st to 2nd when engaging the clutch the revs didnt drop.

    This happened 2x's and was fine after that?
    Any thoughts.......doesnt feel like a clutch issue.

    I did just have all the fluids changed.
     
  2. 285ferrari

    285ferrari Two Time F1 World Champ
    Sponsor

    Sep 11, 2004
    20,976
    MD and NE
    Full Name:
    Robbie
    Push in clutch, let off gas and the revs kept going higher?
     
  3. cuneo

    cuneo Formula 3
    Silver Subscribed

    Nov 20, 2006
    2,484
    Might be your throttle cable is starting to go, or is dirty and is sticking.
     
  4. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,232
    Mount Isa, Australia
    Full Name:
    Pap

    Yep, sticking accelerator cable or the wire is starting to fray. :):)

    Try and lube it up mate. It is a little awkward to get the end of the cable in the engine bay. ;);)
     
  5. Oengus

    Oengus F1 World Champ
    Rossa Subscribed Silver Subscribed

    If I ran up to 7k and depressed the clutch the revs would drop to maybe 5k
     
  6. Oengus

    Oengus F1 World Champ
    Rossa Subscribed Silver Subscribed

    Yeah thats what I was kinda thinking............
     
  7. UConn Husky

    UConn Husky F1 Rookie

    Nov 11, 2006
    4,425
    CT
    Full Name:
    Jay
    I've heard of butterfly valves sticking too, evaporated gas gums them up.
     
  8. Oengus

    Oengus F1 World Champ
    Rossa Subscribed Silver Subscribed

  9. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    can someone tell me the procedure for ungumming sticky butterfly valves
     
  10. Houston348

    Houston348 Formula 3

    Oct 18, 2006
    2,297
    perhaps just an "italian tuneup" might fix this problem? seems to fix all MY other problems :)
     
  11. agnello11

    agnello11 Karting

    May 27, 2008
    81
    Sounds like the circlip has popped off the end of the accelerator cable outer sleeve in the engine bay to me. There should be a circlip in the machined groove in the end of the acc. cable sleeve where it attaches to the thermostat housing on the engine which keeps the sleeve positively mounted and ensures the operating length remains the same. If the circlip pops off, the cable outer can slip out of the hole in the mounting bracket and snag on the bracket, effectively lengthening the cable and holding the throttle open a little. It can then drop back into the hole and work fine for a while before snagging again, normally under hard acceleration which equates to larger engine movements.
     

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