360 Crank Bolt - Clockwise or anticlockwise? | FerrariChat

360 Crank Bolt - Clockwise or anticlockwise?

Discussion in 'Technical Q&A' started by car_nut, Sep 4, 2008.

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  1. car_nut

    car_nut Rookie

    Aug 23, 2005
    39
    Belgium
    Full Name:
    Hugh McGowan
    #1 car_nut, Sep 4, 2008
    Last edited by a moderator: Sep 7, 2017
    Hi everyone, this will seem like a daft question but I'm unsure how to get the crankshaft bolt out of my 360 F1 Modena. (Yes, I have blocked crankshaft rotation with a lever bolted onto the flywheel bolt-holes, since I removed the gearbox and clutch.) I assumed I should turn teh crank bolt anticlockwise to loosen it, but no joy, apart from building up my muscles. Then it was suggested to me that it might be one of those that comes loose by turning it clockwise, the same as the forward rotation of the crank. Can anyone remember which way it goes? Thanks in advance for any tip. My arms will be grateful.
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  2. ferrari.ace

    ferrari.ace Karting

    May 25, 2006
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    So.Cal.
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    Adam Cox
    #2 ferrari.ace, Sep 4, 2008
    Front pulley bolt is removed counter clockwise.
     
  3. smg2

    smg2 F1 World Champ
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    Apr 1, 2004
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    SMG
    #3 smg2, Sep 4, 2008
    normal bolt, I use a 3ft 1/2" drive breaker bar and a sixpoint short wall 32mm impact socket. it takes ALOT to break it loose. I had a 355 where even using the impact wouldn't get it loose I had to heat it up with a torch, previous mechanic used loctite.
     
  4. dggferrari

    dggferrari Rookie

    Sep 12, 2004
    22
    Sausalito,CA
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    Giuseppe Di Gennaro
    #4 dggferrari, Sep 4, 2008
    Counter clockwise, 36 mm socket and some muscle, its installed with thread locker. Torque to reinstall, 196 Nm.
     
  5. windsock

    windsock Formula 3
    Rossa Subscribed

    Nov 29, 2006
    1,070
    #5 windsock, Sep 4, 2008
    Ferrari specifically states the bolt is to be installed with loctite (Arexon 151)
    Generally it will come loose with a long breaker bar or impact gun without to much trouble.
     
  6. dwe8922

    dwe8922 Formula Junior

    Feb 27, 2004
    390
    FL
    Full Name:
    David
    #6 dwe8922, Sep 4, 2008
    FOA used about a 5' breaker bar to loosen mine; protruding it through the bottom of the car.
     
  7. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    Austin TX
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    Brian Crall
    #7 Rifledriver, Sep 5, 2008
    I use an 18 inch breaker bar.

    Never had a problem.

    Its only about 145lbs. Thats only about twice wheel torque.
     
  8. dggferrari

    dggferrari Rookie

    Sep 12, 2004
    22
    Sausalito,CA
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    Giuseppe Di Gennaro
    #8 dggferrari, Sep 5, 2008
    196 Nm equals about 145 lbs-ft. Sorry i can't think in standard, i grew up in Italy and metric system its what i know......
     
  9. mjw599

    mjw599 Formula Junior
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    Jul 30, 2008
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    A Chinese Democracy
    #9 mjw599, Sep 11, 2008
    You mean counterclockwise?
     
  10. rustybits

    rustybits F1 Rookie
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    Jan 28, 2007
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    Eddie B
    #10 rustybits, Sep 12, 2008
    Wow, you must have a really small impact gun to fit in there! I use big old Snap-on breaker bar and have never had problems. Sometimes they are tight all the way untill the end if a Tech's gone a bit crazy with the thread-lock.
     
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  11. car_nut

    car_nut Rookie

    Aug 23, 2005
    39
    Belgium
    Full Name:
    Hugh McGowan
    #11 car_nut, Sep 14, 2008
    As for having 'a small impact gun' (as my ex- used to say), I was under the car in a low-roof garage with a weird contraption of gun, extension bars, flexible joints and well, let's just say that I was embarassing myself. So thank you for all the tips and yes, a 3 foot breaker bar inside the cabin did the job nicely. I feel a Homer Simpson moment coming on, as I should have tried that earlier. But yes, the previous mechanic went overboard on the loctite so that's a good excuse. Keep on wrenching...
     
  12. eme1969

    eme1969 Rookie

    Apr 27, 2011
    4
    Holland (NL)
    #12 eme1969, Jan 29, 2019
    losen with flat 36 mm socket, reinstall 2 new chain belts and re-tighten bolt (re-use) with 196nm on a 360. block toothwheel on clutch underneat with self made block tool. >> easy to make.
    agreed?
     

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