Diesel Data: Automotive Repair

Crankshaft Main Bearing

MAIN BEARING CAP

Step 1





Install and uniformly tighten the 10 main bearing cap bolts in the sequence shown in the illustration.
Torque 40 Nm (408 kgf-cm, 30 ft-lbf)

Step 2





Mark the front of the bearing cap bolts with paint.
Further tighten the bearing cap bolts an additional 90° in the numerical order shown in the previous illustration.
Check that the paint mark is now at a 90° angle to the front.


Standard diameter 47.988 to 48.000 mm (1.8893 to 1.8898 in.)
Maximum taper and distortion 0.004 mm (0.0002 in.)

Standard Diameter (Reference):






CRANK PIN
Standard diameter 43.992 to 44.000 mm (1.7320 to 1.7323 in.)
Maximum taper and distortion 0.004 mm (0.0002 in.)