Crankshaft Assembly Overview

Crankshaft Assembly Overview





1 Bolt, 40 Nm + 90° (1/4) additional turn

• Replace

• Fully threaded

• Tighten to 40 Nm (but not any further) to measure the radial play in the crankshaft.

2 Bearing Cap

• Bearing cap 1: Belt pulley side.

• Retaining tabs on the bearing shells and cylinder block/bearing caps must lie above one another.

3 Bearing Shell, for the Bearing Cap

• Without a lubricating groove.

• Do not interchange used bearing shells (mark them).

4 Crankshaft

• Axial play new: 0.07 to 0.21 millimeter (mm).

Wear limit: 0.30 mm

• Measure radial clearance with Plastigage(R).

New: 0.023 to 0.043 mm wear limit: 0.07 mm

• Do not turn crankshaft when measuring radial play.

• Crankshaft dimensions, refer to => [ Crankshaft Dimensions ] Crankshaft Dimensions.

• Crankshaft locking, refer to => [ Crankshaft, Locking ] Crankshaft, Locking.

5 Thrust Washers

• For bearing 3.

• Side lubricating grooves face outward.

6 Bearing Shell, for the Cylinder Block

• With a lubricating groove.

• Classification for replacement part ordering, refer to => [ Identification of Top Crankshaft Bearing Shells ].

• Do not interchange used bearing shells (mark them).

7 Cylinder Block

Identification of Top Crankshaft Bearing Shells





From the factory, the upper bearing shells are allocated to the cylinder block with the correct thickness. Colored spots serve to identify the bearing thicknesses.

The letters marked on the lower sealing surface of the cylinder block identify which bearing thickness must be installed in which location.

G Yellow
B Blue
W White

• - Arrow - points in direction of travel.

• If colored marks can no longer be seen, use the blue bearing shell.

• The lower crankshaft bearing shells are always shipped as replacement part with a "yellow" colored mark.