| Author | Message | ||
     Fravel |
Can anyone tell me if this chart is accurate. I will soon be installing a Drummer SS. I don't have an in/lb Torque Wrench, but I do have access to a ft/lb Torque wrench. I want to do things right, but I don't have the extra $65 to buy a new Torque Wrench. Thanks http://www.njbikemap.com/njmap/other/torque.pdf | ||
| Fravel |
I also found this site. http://www.numberfactory.com/nf%20torque.htm | ||
| Perry |
Yes, converting inch pounds to foot pounds is just divide by 12 (12 inches per foot) as this chart shows. Your problem will be that a foot pound wrench may not have as fine of adjustment as the inch pounds one. | ||
| Firebolteric_ma |
I want to do things right ___________________________________________ in order to do it "right" you will need the "right" tools. maybe borrow one from a buddy or possibly "rent" from a mechanic? you will NOT get an accurate torque if you use a ft.lb torque wrench for a in.lb. torque setting. just my .02 | ||
| Mikej |
3/8" drive, 25-250 in. lbs.:  http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_941218_941218 1/2" drive, 25-250 ft.-lbs.:  http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_937613_937613 | ||
| Jackbequick |
The values on the chart at the first link are right, notice that all values that are a multiple of 12 are even numbers (12 in/lb = 1 ft/lb). The one at the second link was unreadable in my browser. I'm not a rocket scientist and I just do the conversions mentally as I work. In a perfect world, you would be using your torque wrench in the center of it's range because they tend to be less accurate and the ends of the scale, especially the lower end. And that is one of the reasons that most guys will have two or three of them. I have 0-150 in/lb (3/8" drive) and 0-150 ft/lb (1/2" drive) wrenches. My 150 in/lb wrench is also a 12.5 ft/lb wrench. When something calls for a torque value of 12 ft/lbs or less I usually convert it to in/lbs and use the smaller wrench. The "click" on the clicker on clicker style wrenches gets harder to feel and hear at the lowest values. Play with your torque wrench to get a feel for it. If you have two, tighten something to a value in the overlapping range and see if the other wrench will click before or after that. That will give you some idea that they are both about right. If you double the length (drive to center of handle) on your 150 ft/lb torque wrench, it becomes a 300 ft/lb torque wrench. Here are a couple of interesting links for folks that like to worry about numbers and use torque wrenches: http://www.specialpatrolgroup.co.uk/spooky/torque/torque.html http://norbar.l.ominor.co.uk/torquewrenchextensioncalculator.php Jack |
