Diesel Data: Automotive Repair

Crankshaft Main Bearing

MAIN BEARING CAP




Crankshaft Bearing Cap to Cylinder Block
1st 40 Nm (30 lb ft)
2nd Turn 90 degrees

CRANKSHAFT

Standard Main Bearing Center Wall Thickness
Mark 1 1.994-1.997 mm (0.0785-0.0786 in)
Mark 2 1.998-2.000 mm (0.0787-0.0787 in)
Mark 3 2.001-2.003 mm (0.0788-0.0789 in)
Mark 4 2.004-2.006 mm (0.0789-0.0790 in)
Maximum Circle Runout 0.03 mm (0.0012 in)
Standard Oil Clearance 0.016-0.039 mm (0.0006-0.0015 in)
Maximum Oil Clearance 0.050 mm (0.0020 in)
Crank Pin Diameter 43.992-44.000 mm (1.7320-1.7323 in)
Maximum Taper and Distortion 0.004 mm (0.0002 in)

Crankshaft Bearing
Dimension A 0.5-1.0 mm (0.020-0.039 in)
Dimension A-B 0.5 mm (or less 0.0197 in or less)

Crankshaft Bearing Cap Set Bolt
Standard Diameter 84.3-85.7 mm (3.3189-3.3740 in)
Minimum Diameter 86.7 mm (3.4134 in)