Yoose guys are risking destructive assembly if going by the manual torque levels.
on things that must be un-done now and then with normal use-wear, like axle nuts, clutch nut, sprocket nuts. On most engine parts, expect the rod bolts which should be stretch measured, its rather better to exceed the manual torque levels.
A non- Nortoneer that has not long ago learned by trial and failure of over torquing various fasteners in various states-conditions, may have unpleasant learning curve.
Factory did not use T-wrench on anything but rod nuts, taking a cheap short cut to measure for proper stretch clamp force.