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Workshop Manual Torques

Discussion in 'Technical Q&A' started by vaporhat, May 5, 2015.

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  1. vaporhat

    vaporhat Rookie

    Jul 31, 2006
    42
    #1 vaporhat, May 5, 2015
    When reviewing tightening torques in the workshop manual, what does 65÷75 Nm mean? Its a Class A +/- 5%
     
  2. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
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    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #2 Steve Magnusson, May 5, 2015
    Tighten to 65 (minimum) to 75 (maximum) Newton-meters.
     
  3. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
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    Twin Cities
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    Tim Keseluk
    #3 2NA, May 5, 2015
    Torque specs in the workshop manuals are notoriously confusing and occasionally wrong.
     
  4. vaporhat

    vaporhat Rookie

    Jul 31, 2006
    42
    #4 vaporhat, May 5, 2015
    So does the +/- 5% get applied on top of the 65-75?
     
  5. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    Brian Crall
    #5 Rifledriver, May 5, 2015
    What is the reference applied to?

    As mentioned some are a little cryptic and if you give us some context we can help.
     
  6. vaporhat

    vaporhat Rookie

    Jul 31, 2006
    42
    #6 vaporhat, May 5, 2015
    F430 suspension, bearing fastening screw.

    Scanning though other torques in the list , I notice one in a similar format, 25÷45 and has no class listed. Perhaps this item should not have a class either?
    I will just hit 75Nm and be done.
    Although it is confusing. Probably an error.

    Thanks.
     
  7. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,100
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #7 Rifledriver, May 5, 2015
    An error sort of and just poorly written and translated by non technical people. The classes are a bad way of stressing level of importance.

    A +or- on a fastener with a built in range was dumb too. Make it 65 to 75.

    It is a real education to get a good description from someone who has a good technical background and is fluent in Italian. Their version and ours have some really startling differences sometimes.

    Many of the translations are done by ESL students with no technical or automotive background.
     

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