Crankshaft Main Bearing: Locations

Crankshaft, assembly overview





1. Oil pump with chain sprocket
With pressure relief valve 12 bar
Before installing, check to be sure both alignment sleeves are present (for centering oil pump/cylinder block)

2. 15 Nm

3. Chain sprocket

4. Bearing sheels 1, 2, 3, 4 and 5
For bearing cap without oil groove
For cylinder block with oil groove
Do not interchange used bearings (mark)
Vehicles from approx 05/00; Classification for replacement part ordering refer to Cylinder block crankshaft bearing shells identification

5. 65 Nm plus an additional 90° (1/4 turn)
Replace
Fully threaded
When measuring crankshaft radial play, fasten to 65 Nm

6. Bearing cap
Bearing cap 1: Belt pulley side
Retaining tabs of bearing shells and cylinder block/bearing caps must lie above one another

7. Bearing shell 3
Item #4
Do not interchange used bearings (mark)

8. Sensor wheel
Replace
For Engine Speed (RPM) Sensor G28
Only possible to install in one position - Bores are offset

9. 10 Nm plus an additional 1/4 turn (90°)
Replace

10. Thrust washer
For bearing 3
Observe locating point

11. Crankshaft
Axial play new: 0.07 to 0.23 mm, wear limit: 0.30 mm
Check radial clearance with Plastigage(R) 0.01 to 0.04 mm, wear limit: 0.15 mm
Do not turn crankshaft when measuring radial play
Crankshaft dimensions refer to Specifications Specifications

Vehicles from approx. 05/00





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

Note: Arrow points in direction of travel.

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

Color identification

Color identification:

- The crankshaft bearing shells in the bearing caps are only available as a replacement part with a "yellow" color marking.

Crankshaft dimensions