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Old 06-20-2013, 09:07 PM   #41
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Oc- I believe your previous to last post contradicts what you just said and actually backed up what I said. What changed in the past couple minutes?
And how is that? A bolt, no doubt will fracture if turned 45į after it has reached its max specified torque.
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Old 06-20-2013, 09:32 PM   #42
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I do believe a torq spec and a max bolt torq would be 2 completely different numbers. I have torqed bolts to the 450-500 ftlb range and that was spec. NOT BOLT MAX SPEC.
Besides the 1/8 turn was a hypothetical and you must have missed the other part of my post about corrosion or other variables that might give the idea of a false torq., and I believe I saw another post (that you posted) that backed up this idea by stating that you cannot check the torq by simply reversing it.

Man- I guess I have 2 much free time while camping since I keep arguing on here. Guess ill just go chase some kids and get off of here.
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Old 06-20-2013, 09:47 PM   #43
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MillerTime, the 120 is the max on a 1/2" gr 8 bolt and 1/8 turn past that will fracture it. I'm out of here.
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Old 06-20-2013, 10:04 PM   #44
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And again, I stated 1/8 turn TO get from 85 to the 120. But I guess somehow im still wrong since my statements are miss-read or not read at all.

Ps. I dont remember the studs being stated as 1/2" but my bad if I missed that.
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Old 06-20-2013, 11:22 PM   #45
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Some videos on torque wrench use



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Old 06-20-2013, 11:28 PM   #46
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He mentions a torque stick on the second video and I looked it up.

Professional torque sticks, sockets, multipliers and extension bars

It is an interesting idea that uses a fixed resistance to torque extension that will twist at the specified torque rather than transfer the impact of the wrench to the nut.
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Old 06-21-2013, 05:47 AM   #47
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Torque sticks are a nice addition to the tool box. I personally don't use them, probably due in part to an "ASE Certified Mechanic" (that's what the patch on his sleeve said) at Sears, years ago who snapped a stud on my 4 lug import car. A torque wrench is MY friend.

Besides, my DW would probably should me in the back side if I bought anymore tools. Lol.
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Old 06-21-2013, 10:03 AM   #48
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My issue with the "torque sticks" is:
They are supposed to bend at a set rating. However, there is nothing, that I see, to keep them from over tightening a bolt/nut.

Just because you use an 85 foot-pound setting doesn't mean the 750 foot-pound impact gun will stop at 85.

I had a "professional" wheel and tire tech replace some tires for me and pounded the lug nuts on with one of these "guaranteeing" that they were right. That came back to haunt him as a few days later I need to check the brakes and broke off 2 studs while trying to remove the wheel.
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Old 06-21-2013, 10:54 AM   #49
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Quote:
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My issue with the "torque sticks" is:
They are supposed to bend at a set rating. However, there is nothing, that I see, to keep them from over tightening a bolt/nut.

Just because you use an 85 foot-pound setting doesn't mean the 750 foot-pound impact gun will stop at 85.

I had a "professional" wheel and tire tech replace some tires for me and pounded the lug nuts on with one of these "guaranteeing" that they were right. That came back to haunt him as a few days later I need to check the brakes and broke off 2 studs while trying to remove the wheel.
Torque sticks work good (and we use them), IF you use them correctly and as intended.

You are correct about the 750 pound gun overtorquing. The sticks we use are meant to only be used with a 350-400 ft lb range impact gun.

An air impact gun is also affected by incoming air pressure, which is 90 psi for most 1/2 inch guns to achieve their rated specifications. You also have to take into account air hose length in achieving the 90 psi into the impact gun.

You also do not just keep hammering with the sticks, assuming that the stick will keep the fastener from being overtorqued. You watch the fastener, while applying the torque stick and you will see when it quits turning...so to stop applying the impact gun.

So, to correctly use the torque sticks, you need to have the correct air pressure going to the correct impact gun (for the sticks being used).....and the know how of when to stop the impact gun........and it starts at the top of the management chain. If the boss doesn't know how to do it right, then there's a slim chance the employees do either.
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Old 06-21-2013, 11:05 AM   #50
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Very good explanation west monroe tire.
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