I would say that using an Impact Gun in place of a Torque Wrench is not Common Sense, especially on a Tapered Fit. Overtightening will Ruin the Flywheeli have also used the impact gun on high and some common sense to lock the nut in place.
ha ha , yea , however i have been tightening nuts and bolts for 50 years , so i know common sense when using the rattle gun even on such a technical thing like an on a old Johnno motor flywheel .I would say that using an Impact Gun in place of a Torque Wrench is not Common Sense, especially on a Tapered Fit. Overtightening will Ruin the Flywheel