Crankshaft Main Bearing

Crankshaft
Main bearing journal
Diameter 67.481 - 67.505 mm
Maximum out-of-round 0.0075 mm between cross sections
Maximum taper (straightness) 0.004 mm
Runout: FIM of center journals when located on front and rear journal 0.05 mm (3 places)
Clearance - crankshaft journal-to-main bearing clearance 0.048 - 0.024 mm
Crankshaft end play 0.075 - 0.377 mm








Main Bearing Size Codes





Remove and discard the main cap bolts.

Main bearing cap fasteners 1-12
First pass 40 Nm (30 ft. lbs.)
Final pass tighten 90°





Remove and discard the cross-mounted main cap bolts.

Main bearing cap fasteners 13-24
First pass 30 Nm (22 ft. lbs.)
Final pass tighten 90°