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Old 04-03-2010, 01:50 PM   #1
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Not to be picky, but torque is measured in lb/ft. Work is in ft/lbs.

I know, Everybody says it. Just the engineer in me trying to get back out.
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Old 04-03-2010, 03:40 PM   #2
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Actually, it's ft-lb
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Old 04-03-2010, 04:21 PM   #3
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Ft/lb is to measure energy. Lb/ft is to measure Torque.

http://en.m.wikipedia.org/wiki/Pound-foot_(torque)?wasRedirected=true
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Old 04-03-2010, 07:10 PM   #4
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Jesus H. Who let the engineers in?

Set your torque wrench to 96 whatever-the-eff's and you're good to go.
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Old 04-03-2010, 07:34 PM   #5
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Well technically you are measuring the resistance to turning of the bolt and not the tightness of the bolt or the force of the bolt on the wheel. If you want to get really anal then is 96 lb/ft dry, lightly oiled or if you use anti seize how much do you have to change the setting to compensate.

I have seen systems that are used on wind turbines that address these issues. They have a special washer that squirts out blue goo when it is the correct torque. They are very acurate and make tightening bolts a simple process. Too bad they don't have them for lugs.

By the way I torqued my lugs to 95 ft/lbs (that is what it says on my torque wrench) today.
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Old 04-04-2010, 02:46 AM   #6
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Quote:
Originally Posted by sd_boxster
Jesus H. Who let the engineers in?

Set your torque wrench to 96 whatever-the-eff's and you're good to go.
Damn engineers!
Torque is measured in ft-lbs... not ft per lbs (ft/lbs), I'm not sure what is a measurement of?. Or torque is in-lbs and N-m

Ref: Marks' Standard Handbook for Mechanical Engineers, Ninth Edition, McGraw-Hill Book Company. I can also reference American Machinists' Handbook - Seventh Edition (my grandfather's!) McGraw-Hill Book Company, 1940.
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