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Thread: Torquing

  1. #1
    Senior Member Tjmay's Avatar
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    Torquing

    How important is using a torque wrench as opposed to just tightening a bolt according to feel?
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  2. #2
    Senior Member Xracer's Avatar
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    How calibrated is your feel? All kidding aside if its just holding a seat on then go for it. However if its something on the engine or its holding something on like the swingarm then use one. Harbor Freight has some that work pretty well and don't cost a lot.
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  3. #3
    Senior Member Tjmay's Avatar
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    Thanks for the advice.

    I know I should listen to it and I will but I need to know why.

    Without try to cram several years of engineering school in an answer, what is the reasoning behind torquing a bolt as opposed to just muscling it tight?
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    Super Moderator goldenhtr's Avatar
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    Not breaking it off.
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  6. #5
    Senior Member SportsterDoc's Avatar
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    Quote Originally Posted by goldenhtr View Post
    Not breaking it off.
    Or having it come loose or stretching a bolt so that it may break in the future.

    Or having it so tight, that the head strips when trying to remove, especially on Allen or Torx heads.

    At my age**, I am not likely to use a torque wrench, but one is advised for head bolts, etc.

    ** In my youth I broke enough to get a feel for it.
    2014 Honda CB1100
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    1970 Yamaha CT1
    1972 Yamaha CT2
    1972 Yamaha AT2/CT2
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  7. #6
    Senior Member Tjmay's Avatar
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    All very good and understandable reasons.

    Thanks...
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  8. #7
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    The three wrenches linked below will take care of any fastner I can think of on a motorcycle and cost less than 100 dollars for all three. Before you get turned off by the name, some car rag did a test on these compared to more expensive brand and found their accuracy to be comparable.

    https://www.harborfreight.com/1-2-ha...rench-239.html

    https://www.harborfreight.com/3-8-ei...rench-807.html

    https://www.harborfreight.com/1-4-qu...ench-2696.html

    those torque specs exist for a reason and while I don't torque every single faster I tighten down I torque anything down that has to do with controlling or suspending the motorcycle. Brake calipers, axle nuts, pinch bolts, ect, ect
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  9. #8
    Senior Member Chip's Avatar
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    At my age I've learned it's not worth the risk of breaking off bolt, rounding allen screws etc. The whole 2 minutes it takes to get the torque wrench is time well spent.

    For example my Quigley 4x4 van needed u-joints on the front axle. Well some POS that was well trained, tightened the little cap allen screws so tight I could not remove them. Actually rounded out a third, then broke a third of them off. So I had to grind off and destroy a $150 set of locking hubs to repair the joints. It may not be you who gets burned the next time you use your highly calibrated hand torque wrench. Do it right the first time, torque to spec.
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  10. #9
    Senior Member grewen's Avatar
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    or, if your like me, i used a torque wrench once on theTW and didn't like not being able to feel anything through the wrench, so it went into the drawer and has never come out again. i'm lucky enough to have never stripped or broken, or lost any fastener on any bike yet. so i guess it just boils down to the individual
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  11. #10
    Ken
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    Senior Member Ken's Avatar
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    If it's big I torque it. If it's small and critical, pinch bolts etc I cautiously torque it. I have only broken small fasteners with a torque wrench. Many times you can't get access for a torque wrench. You have to learn power control. I learned to torque lug nuts after it took 3 people to break them loose. Get a torque wrench which works for you. I have an old needle type torque wrench I trust if I can access the bolt. The click type I trust less and it doesn't detect low torques which can break them off.
    grewen likes this.

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