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Do I need a top end rebiuld?

Discussion in 'Technical' started by JeffM, Jun 8, 2018.

  1. kickstart

    kickstart Well-Known Member

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    Who else could do it right? They should be the subject matter experts as they all worked for BD.
    If they are back they should know basic things like the Torque Specs for all the scoots.
     
  2. woodbutcher

    woodbutcher Mr. Old Fart member #145
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    they could probably put out a list of "recommended" standards and still be ok. that would go a long way in helping everybody out.
     
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  3. TapioK

    TapioK Well-Known Member
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    Re writing a manual(s) takes a lot of time, time is money, a task specially for a small company. then we just share it free here and bitch if there is a mistakes left... Bad Combo
     
  4. BC200742

    BC200742 Member

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    My Uncle once told me this is the only book you'll ever need for specifications on material, torque values, threads etc....
    If you want to do things correctly.

    [​IMG]
     
    #24 BC200742, Jun 25, 2018
    Last edited: Jun 26, 2018
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  5. pknowles

    pknowles Getting better by the day...---... GURU
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  6. JeffM

    JeffM Active Member

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    I rarely do nuts and bolts to tension by workshop manuals.
    As a mechanical fitter by trade i have an Engineers Hand book that has all the torque values for all metric & imperial bolts in all their various grades and thread types. I also do bolt stretch on some very big gear using dial gauges so i do have some idea in this area.
    Another point is "RED LOCTITE" should never be used on bolts under 1/2", the evidence is the 10 stripped bolts in my rotors.
    BLUE is the medium and with 1 drop will hold any bolt keeping our mobile jackhammers on the road.
     
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  7. pknowles

    pknowles Getting better by the day...---... GURU
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    Thanks for shedding some light on the subject.
     
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  8. kickstart

    kickstart Well-Known Member

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    There are numerous torque charts available on the internet that list everything from types of material to class fit, run on torque, break away torque,dry and wet torque on and on. What I do is look at the recommended torque and start at about half and slowly work up to it however on occasion if it doesn't feel right to me I don't give it the recommended torque especially steel hardware into aluminum. There are several in the BD manual that are too high in my opinion. Just my .02 If it feels like it's about to strip STOP. :) That comes with experience and helicoil installation.
     

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