The crank is placed in position, the crank bearing caps are installed
and then the crank is manually turned so the lapping compound
can carefully and slowly grind the surface smooth.
The bearing surface has been made smoother after the 80-and then
100-grit lapping material passed over the surface. Engine machinist
Troy Hermann will now verify that the bearing and crank
tolerances all line up so when they are installed, all the parts are
properly mated to work smoothly.