Anyone know of a 308 gearbox being parted out | FerrariChat
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Anyone know of a 308 gearbox being parted out

Discussion in 'Technical Q&A' started by tomoshea, Dec 16, 2005.

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  1. tomoshea

    tomoshea Formula Junior

    Dec 29, 2003
    541
    Ireland
    Full Name:
    Tom O'Shea
    #1 tomoshea, Dec 16, 2005
    Hello all,

    Does anyone know of anyone who has bits and pieces of dismantled 308 gearboxes ?

    I am looking for part number 108522 (the lay shaft and crown wheel combination) ?

    Already tried Ferrari UK, they have them but at a suitably high price ?


    Cheers
     
  2. jeffdavison

    jeffdavison F1 Rookie

    Jul 29, 2002
    2,544
    Suwanee Georgia
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    Jeffrey Davison
    #2 jeffdavison, Dec 16, 2005
    Try TRutlands, they have lots of tranny bits & pieces.

    JD

     
  3. 308tr6

    308tr6 Formula Junior

    Dec 23, 2003
    466
    SDakota
    Full Name:
    Rico
    #3 308tr6, Dec 16, 2005
    I have an entire 308 gearbox, but would only sell it as a complete unit - not dismantled, if that is of interest.
     
  4. BigTex

    BigTex Seven Time F1 World Champ
    Owner Rossa Subscribed

    Dec 6, 2002
    79,406
    Houston, Texas
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    Bubba
    #4 BigTex, Dec 16, 2005
    Tom,

    Contact Martin at Cavallino Motors in Florida...he had one no one wanted and he was going to saw it open, as a table base or something.....

    He's down in Florida Section.....of course!
     
  5. barcheta

    barcheta F1 Rookie

    Nov 15, 2003
    3,738
    Maryland
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    Jim
    #5 barcheta, Dec 16, 2005
    there is a guy on ebay who is parting out a 308. Not sure if he is someone on here but you might want to check it out.
     
  6. atlantaman

    atlantaman Formula 3

    Mar 31, 2002
    1,726
    Roswell, Georgia
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    Charles
    #6 atlantaman, Dec 19, 2005
    this is gonna sound weird--but i think i have a spare
     
  7. tomoshea

    tomoshea Formula Junior

    Dec 29, 2003
    541
    Ireland
    Full Name:
    Tom O'Shea
    #7 tomoshea, Dec 20, 2005
    Last edited by a moderator: Sep 7, 2017
    Thanks guys for your help.

    I am awaiting a replacement lock nut for the end of the shaft to see if it will go on with the damage on the threads.

    Photos attached for your information. Long story, but basically it took a total of 25 hours of work to get the lock nut off the shaft!, and it looks like a section of thread sheared away, I am hopeful that a new nut will thread on, if not, let the madness begin!

    I will be in touch for definite if the replacment nut won't go on!
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  8. Ferrari_tech

    Ferrari_tech Formula 3

    Jul 28, 2003
    1,527
    UK
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    Malcolm W
    #8 Ferrari_tech, Dec 20, 2005
    Hi Tom

    Just checked # 108522 and it crosses over to #116943 - might be able to give you a bit of extra discount on the part if you can't find a good secondhand part.

    PM me if you need further info
     
  9. tomoshea

    tomoshea Formula Junior

    Dec 29, 2003
    541
    Ireland
    Full Name:
    Tom O'Shea
    #9 tomoshea, Dec 20, 2005
    Malcom just sent you a PM
     
  10. BigTex

    BigTex Seven Time F1 World Champ
    Owner Rossa Subscribed

    Dec 6, 2002
    79,406
    Houston, Texas
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    Bubba
    #10 BigTex, Dec 20, 2005
    Yikes!.....I can send you my little triangular file.........
     
  11. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
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    Newman
    #11 Newman, Dec 20, 2005
    Forzamot, Tom I believe had some 308 parts on ebay a while back, one part was the lay shaft. Try him as well.
     
  12. Artvonne

    Artvonne F1 Veteran

    Oct 29, 2004
    5,379
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    Paul
    #12 Artvonne, Dec 23, 2005
    If I am seeing your picture correctly, you are showing a small area of thread removed near the notch for staking the nut? If that is all you are indicating, I would dress the threads with a file so the nut threads on nicely, and during assembly possibly use some thread locker. But even without thread lock, I cannot see any trouble. There is not that great of torque on the nut, and no way that I would be afraid to run it. At best you might have 1/20 less threads supporting the load, and I would assume a good 3X overload limit built into the design. Maybe someone with an engineering degree can weigh in here, but I just do not see a big problem.
     
  13. tomoshea

    tomoshea Formula Junior

    Dec 29, 2003
    541
    Ireland
    Full Name:
    Tom O'Shea
    #13 tomoshea, Dec 26, 2005
    Thanks for all your replies guys,

    I think it will be OK the replacement lock nut has just arrived in the post and I have an appropriately sized thread file, independent advice from a number of sources/ specialists say it should be fine once I do a bit of work with a thread file, aparantly this does happen to these shafts occassionaly when the original lock nut is put on too tight in the first place (not something I did - I might add)

    just had the box rebuilt so I have no intention of going through that again!

    That part of the shaft is not load bearing anyway and I have a replacement bearing and lock nut now.

    So fingers crossed all will be fine, I will put another post up once I do a bit of nifty thread repair work......... hopefully1

    hopefully it will be a good start to my new year, and nto another teardown!
     

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