Crankshaft Main Bearing

CRANKSHAFT MAIN BEARING










CAUTION: Before tightening bolts, you must identify the bolt head to obtain the correct torque value. Failure to identify the bolts correctly, could result in improperly tightened bolts which could result in engine damage.

Tighten bolts marked with b or 6 using the following three step method, in the sequence shown:
Tighten all bolts 15 Nm (11 ft. lbs.)
Tighten all bolts 27 Nm (20 ft. lbs.)
Tighten all bolts an additional 45°.

Tighten bolts marked with M using the following three step method, in the sequence shown:
Tighten all bolts 15 Nm (11 ft. lbs.)
Tighten all bolts 45 Nm (33 ft. lbs.)
Tighten all bolts an additional 45°.

crankshaft turning torque, it should not exceed 5.6 Nm (50 in. lbs.).






CRANKSHAFT MAIN BEARING CLEARANCE

Main Bearing Diametrical Clearance 0.028 - 0.048 mm (0.0011 - 0.0018 in.)
Main Bearing Diametrical Clearance (Max.) 0.058 mm (0.0022 in.)






MAIN BEARING SELECTION

NOTE: There are three different possibilities for the upper main bearings and five different lower main bearings. The upper and lower bearing shells are not interchangeable.