Join Date: May 2004
Location: Southern California
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Originally Posted by OC Roadie
I think I'll order Sheldon's Torque Wrench. Really, I read the section in Park Tool and that's where the picture's from. The site said to apply 60 lbs of force on the BB tool at 6" up the handle. I don't know how to tell if I'm applying 60 lbs or 100 lbs?
I see your frustration. You're given a torque value, you're given a tool, but no way to combine the two.
That tool will not work with a standard torque wrench. You could make it work with standard torque wrench by cutting a square hole in it the size of a socket drive. Then you'd have to apply some physics to "calibrate" the torque wrench reading to applied torque.
Or, if you have a decent fish scale, you can use that to measure pull force. I think it's called a fish scale, used by anglers to find the weight of a fish by hanging the fish on the hook. The weight deflects a spring and weight can be read directly. In your case, attach the fish hook to a point at a known distance, say 6". Then pull on the fish scale until it reads 60lbs.
60lbs @ 6 inches = 360 in-lb or 30 ft-lb or torque
30lbs @ 12 inches = 360 in-lb or 30 ft-lb of torque