Operation CHARM: Car repair manuals for everyone.

Crankshaft Main Bearing






Main Bearing Cap

65 Nm + 90° (1/4 turn) additional turn
Replace
Fully threaded
When measuring crankshaft radial play, fasten to 65 Nm

Main Bearing Clearance

Axial clearance
New: 0.07 to 0.23 mm wear limit: 0.30 mm

Measure radial clearance with Plastigage
New: 0.01 to 0.04 mm wear limit: 0.15 mm

Do not turn crankshaft when measuring radial play

Main Bearing Size Codes

Upper Crankshaft Bearing Identification





From the factory, the upper bearing shells are allocated to the cylinder block with the correct thickness. The color dots identify the bearing shell thickness.

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

Arrow points in direction of travel.

Color marking on the bearing shell






If the color markings are not yet stamped on or no longer readable, use the center (red) bearing shell.

The lower crankshaft bearing shells are shipped as a replacement part and have a "yellow" dot.







Crankshaft Dimensions

(Dimensions in mm)