Crankshaft Main Bearing

Guide Frame Bolts





Replace the guide frame bolts.
Insert the long bolts in the inner row of the guide frame.
Tighten the bolts - 1 through 31 - in 3 stages as follows:
Tighten the bolts to 50 Nm in the following sequence: - 1 to 16 -.
Tighten the bolts an additional 90° in the following sequence: - 1 to 16 -.
Tighten the bolts for the guide frame sealing surfaces on the cylinder block to 23 Nm in the following sequence: - 17 to 31 -.

Axial clearance 0.15 to 0.25 mm

Allocation of Crankshaft Bearing Shells for Cylinder Block





Bearing shells with the correct thickness are allocated to the cylinder block in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.

Allocation of bearing shells to cylinder block is marked by a letter on the respective bearing on guide frame





Allocation of Crankshaft Bearing Shells for Guide Frame





Bearing shells with the correct thickness are allocated to the guide frame in the factory. Colored dots on the sides of the bearing shells serve for identifying bearing shell thickness.

Allocation of bearing shells to guide frame is marked on flywheel flange of crankshaft by a row of letters. The first letter of the row of letters represents bearing "1", the second letter is for bearing "2", etc.