Join Date: May 2017
Location: Portland, Oregon
It really depends on how much you trust yourself. Remember - 10 foot-lbs is actually ten pounds of pressure at the end of a foot long bar. You don't need a special tool; if your math is good enough you can just hang weights on the end of your socket wrench. Multiply foot-pounds by 12 to get inch pounds - 10 foot-lbs is 120 inch-lbs. How good is your Metric conversion? How much does a Newton weigh?
I used to think I had a well calibrated arm. I do maintenance on the clean-room "tools" used in microprocessor manufacturing. I realize that the expectations at work are different than on a motorcycle, I do high volume manufacturing with chemical deposition at the Angstrom scale - those torque wrenches get calibrated multiple times through the year, regardless of number of uses.
I now own three torque wrenches: 4-16 Nm (1/4" drive) that is mainly for the M5 and M6 fasteners, 20-105 Nm (3/8" drive) for the bigger M8 and M10 bolts, and 55-325 Nm (1/2" drive) for the wheel nuts. Tolerances are tolerances. I really don't want to deal with stripping threads on an engine block hole, mostly because re-threading a blind hole can be daunting if you don't know what's behind it.
1994 900 SS/CR
2017 939 SuperSport S
It's Italian. If I can get it to start, it'll win.
Last edited by psyopper; 11-08-2019 at 11:13 AM.