Tap end of crankshaft back and forth to line up main bearing and crankshaft thrust surfaces. Tighten thrust bearing cap to specification. Retighten all main bearing cap bolts to specification, including thrust bearing. Rotate crankshaft to confirm free movement.
NOTE:
Some engines may contain an .008" (.20 mm) wider main bearing thrust face. These crankshafts can be identified by .008" stamped on rear counterweight. During replacement, use .008" oversize bearings if the stamp is found on the crankshaft.