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  1. #1

    How to tight connecting rod nut ???

    Hello everybody

    Today I install the new connecting rod on my new crankshaft but the problem was after I tight them 21.6 N.m with torque wrench I dont know how to tight the nut 120 degree more.

    Anyone know how ?


  2. #2
    Myself's Avatar
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    Well, 1/4 turn of the bolt is 90 degrees. 1/2 turn is 180. Imagine your wrench being straight out at 0. Then tighten until your wrench points to 120 degrees from where you were.

  3. #3
    The con rod nut has six points on it. Each point represents 60 degrees. Pick one point, mark a point on the nut and a point on the con rod where they meet with a white pen. These are your first points. Move across by two points of the nut in an anti clockwise direction and mark another point on the nut there. This is your second point.

    Turn the nut until the second point on the nut matches the first point you marked on the con rod.

    I am not a genius I saw that technique in the service manual.

  4. #4
    But, not all nuts are one corner is straight (0 degree) some of them between of straight (between 0 degree) .

    how can I tight them





    thank you
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  5. #5
    Maybe someone else can explain better than me.

  6. #6
    steve45's Avatar
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    Quote Originally Posted by blakegjones View Post
    Maybe someone else can explain better than me.
    Ummm... I don't think so. Sounds like he slept through trigonometry because he thought he'd never need it.

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  8. #7
    Take the time to smile sirbreaksalot's Avatar
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    Personally if you cant understand the above explanations you SHOULDN'T be putting the engine together full stop!!!!!
    120 degrees is just a measurement between a start and finish point....


  9. #8
    Thanks for everybody

    Ok, now I understand I should do Myself method like what he say I should turn wrench from straight 0 degrees until wrench points to 120 degrees no matter where nut corner is.

    Its correct or not ?



  10. #9
    Take the time to smile sirbreaksalot's Avatar
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    Quote Originally Posted by king View Post
    Thanks for everybody

    Ok, now I understand I should do Myself method like what he say I should turn wrench from straight 0 degrees until wrench points to 120 degrees no matter where nut corner is.

    Its correct or not ?


    Correct.... once you stop at tension.... that's zero..... just pick a point and start twisting lol

  11. #10
    Here's how I did it with a Sharpie marker:

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