Torque wrench question - Kawasaki ZX-10R.net
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post #1 of 9 Old 05-02-2015, 11:19 PM Thread Starter
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Torque wrench question

Hello. Sorry if this is an obvious and stupid question.
I searched around Google and what not, either didn't understsnd or find what I was looking for.
I would like to know, when I use the torque wrench and I need to get into a tight spot and add a 6" socket extention (not at the end of the bar for leverage, just a socket extention at the driver end to get into a tight spot); do I need to use the torque multiplier calculation?

Thanks in advance for any help and feedback.
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post #2 of 9 Old 05-03-2015, 12:10 AM
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Honestly I never really thought about it much and I always torque everything.

But... easy enough to test.

Torque a bolt down with an extension and then take off extension and
torque again to see and could do it the other way too as a second test.

My guess is it doesn't matter the direction of the torque is the same, side to side.
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post #3 of 9 Old 05-03-2015, 03:18 AM
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No. You're applying a mechanical advantage to the wrench, but the torque is still being measured by the wrench the same way.

I may not be perfect, but at least I don't ride a Suzuki.

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post #4 of 9 Old 05-03-2015, 07:08 AM Thread Starter
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Thanks for the replies guys.
So I guess the calculation for angle extensions and what not.
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post #5 of 9 Old 05-03-2015, 11:55 AM
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So long as you don't "bounce" the torque wrench you can use any size extension you like. A good trick is slowly pull the wrench to torque and hold at the click/break for a few seconds. That keeps you from "bouncing" to the torque number and letting the extension act like a spring. Force applied to one end will equal the same force at the other end so long as the tension is in equilibrium. :)

Now if you used something to extend the -length- of a torque wrench you're going to have to do some math. :)
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post #6 of 9 Old 05-03-2015, 12:08 PM
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Torque wrench question

Quote:
Originally Posted by SpazOnaZX View Post
Now if you used something to extend the -length- of a torque wrench you're going to have to do some math. :)

But that's exactly what he's referring to. Adding a cheater bar to the end of the wrench to lengthen it, not a socket extension.

And there should be no math involved as the click/break is based on the measured torque at the head of the wrench. Just because there's a cheater bar on the end of the wrench doesn't change the torque applied when the wrench hits the break point. It just means that the torque wrench will be easier to turn up to that point. What you feel at the wrench will change with the length, but not the torque applied at the bolt.

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post #7 of 9 Old 05-03-2015, 03:27 PM
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Quote:
Originally Posted by serialize View Post
I would like to know, when I use the torque wrench and I need to get into a tight spot and add a 6" socket extention (not at the end of the bar for leverage, just a socket extention at the driver end to get into a tight spot); do I need to use the torque multiplier calculation?

Thanks in advance for any help and feedback.


...and as far as extending the length goes, I was talking about using a crows foot or some other type of lateral extension from the socket head.
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Last edited by SpazOnaZX; 05-03-2015 at 03:29 PM.
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post #8 of 9 Old 05-03-2015, 03:32 PM
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Quote:
Originally Posted by SpazOnaZX View Post


...and as far as extending the length goes, I was talking about using a crows foot or some other type of lateral extension from the socket head.

Man, I suck. Totally misread the issue.

Yes, a crows foot type extension on the end is not accurate like you said. And just a socket extension won't change the torque either. So ignore my posts above and just read Spaz's.

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post #9 of 9 Old 05-03-2015, 09:44 PM Thread Starter
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Thanks again guys.
Yeah I'm good, no math needed was just using a simple socket extention to get into a narrow spot.
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