Crankshaft Main Bearing

Crankshaft Tightening Sequence
Tighten the crankshaft bolts in the sequence - 1 to 5 -
Tighten the bolts - 1 through 10 - and - arrows A - hand-tight
Tighten the bolts - 1 through 10 - to 65 Nm
Tighten the bolts - 1 through 10 - 90° further using a rigid wrench
Tighten the bolts - arrows A - to 20 Nm
Tighten the bolts - arrows A - 90° further using a rigid wrench

Crankshaft
Axial Clearance
New 0.07 to 0.23 mm
Wear limit 0.30 mm
Radial clearance
New 0.017 to 0.037 mm
Wear limit 0.15 mm

Crankshaft Bearing Shells Allocation

The bearing shells are allocated to the cylinder block with the correct thickness at the factory. Colored spots serve to identify the bearing thicknesses.

The code letters on the lower contact surface or on the top of the cylinder block identify which bearing shell and where it must be mounted on the cylinder block (upper bearing shell).

The code letters on the crankshaft identify which bearing shells and where they must be installed in the bearing cover (lower bearing shell).

The first letter is for bearing cover one, the second for bearing cover two, etc.

Bearing Cap Bearing Shell Identification





The identification on the crankshaft is for the lower bearing shell.

Note the letters and then match it to the color identification in the table.