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Cam driven gears swapped?

Discussion in '348/355' started by justdriveme, Jun 5, 2010.

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  1. justdriveme

    justdriveme Rookie

    Jul 15, 2008
    27
    Columbus, Ohio
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    John
    #1 justdriveme, Jun 5, 2010
    Last edited by a moderator: Sep 7, 2017
    I pulled the engine to do the 30K major service and found that the cam gears are in the wrong position on the 1-4 side. I don't know if the belt has ever been changed, the car has 27K miles. I am going to remove the cams and replace the seals, etc. so I will put them back the right way. Just wondering if anyone else has seen this and what types of problems could this cause.
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  2. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
    18,221
    Twin Cities
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    Tim Keseluk
    #2 2NA, Jun 5, 2010
    It's early in the morning and I haven't had my coffee yet but it looks okay to me.

    What did you say was wrong?
     
  3. Speedmade

    Speedmade Formula Junior
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    Jul 31, 2004
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    Minneapolis, MN
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    Reed H
    #3 Speedmade, Jun 5, 2010
    Last edited by a moderator: Sep 7, 2017
  4. ricardo teixeira

    ricardo teixeira Formula Junior

    Sep 2, 2009
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    Ricardo Teixeira
    #4 ricardo teixeira, Jun 5, 2010
    +1
     
  5. justdriveme

    justdriveme Rookie

    Jul 15, 2008
    27
    Columbus, Ohio
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    John
    #5 justdriveme, Jun 5, 2010
    Last edited by a moderator: Sep 7, 2017
    If you look at the diagram in the shop manual it shows the gears arranged differently. It must be that the drawing is just not accurate. If you look at the drawing the gears on the outside (exhaust cam) both do not have the teeth on the gears visible from the front. But I do see now that the part numbers are swapped on the left #36 is on top but on the right #35 is on top. Thanks.
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  6. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,728
    #6 Mitch Alsup, Jun 5, 2010
    In both cases, you want the pulley with the lip to be in the pulling position. This happens to be the driver's exhaust cam, and the passenger's intake cam.
     
  7. rbellezza

    rbellezza F1 Rookie

    Jun 18, 2008
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    Roberto Bellezza
    #7 rbellezza, Jun 5, 2010
    You have a working spare 348 motors ? NICE !!!
     
  8. dapper

    dapper Formula Junior

    Nov 10, 2003
    711
    Bristol, UK
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    Dave
    #8 dapper, Jun 6, 2010
    ...or the opposite for rhd models (if expressed in terms of driver/passenger terminology) .
     
  9. dapper

    dapper Formula Junior

    Nov 10, 2003
    711
    Bristol, UK
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    Dave
    #9 dapper, Jun 6, 2010
    As far as I can see we all need to be real careful when accepting anything in those Ferrari Workshop Manuals as gospel.

    During my recent spell of diagnosing a rough running problem (still unsolved) I noticed the M2.7 wiring diagram is misleading in one area where it's showing a wire route dropping to ground where it should not and does not.
     
  10. ricardo teixeira

    ricardo teixeira Formula Junior

    Sep 2, 2009
    356
    Luanda / OPorto
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    Ricardo Teixeira
    #10 ricardo teixeira, Jun 7, 2010
    That diagram is from the parts catalogue. At least the workshop manual (page B55) shows them correctly.
     

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