Dimension & Clearance Specifications - Main Bearings

Main Bearing Clearance:
Standard 0.015-0.033 mm (0.0006-0.0013 inch)
0.25 mm Undersize 0.016-0.056 mm (0.0006-0.0022 inch)
Limit 0.010 mm (0.0039 inch)
Standard Main Bearing Thickness
Stamped 1 2.002-2.005 mm (0.0788-0.0789 inch)
Stamped 2 2.005-2.008 mm (0.0789-0.0791 inch)
Stamped 3 2.008-2.011 mm (0.0791-0.0792 inch)
Stamped 4 2.011-2.014 mm (0.0792-0.0793 inch)
Stamped 5 2.014-2.017 mm (0.0793-0.0794 inch)
Main Bearing Thickness 2.264-2.267 mm (0.0891-0.0892 inch)
Crankshaft Journal Diameter:
0 Stamping 47.994-48.000 mm (1.8895-1.8898 inch)
1 Stamping 47.988-47.994 mm (1.8893-1.8895 inch)
2 Stamping 47.982-47.988 mm (1.8891-1.8893 inch)
Undersized 47.745-47.755 mm (1.8797-1.8&01 inch)
Main Bearing Cap Bore Diameter (Without Bearing):
1 Stamping 52.025-52.031 mm (2.0482-2.0485 inch)
2 Stamping 52.031-52.037 mm (2.0485-2.0487 inch)
3 Stamping 52.037-52.043 mm (2.0487-2.0489 inch)