Crankshaft, Removing and Installing

Notes:
- Make sure that prior to removing the crankshaft you have provided a suitable place to put it, so that the pulse-generating wheel - 6 - does not rest on anything or become damaged.
- To perform assembly work, the engine must be fastened to the assembling stand with engine retainer 3269.
- When replacing bearing shells, use only bearing shells with the same color coding.
1. Bearing cover
- Bearing cover 1: oscillation damper side
- Bearing cover 5 with recesses for thrust bearings
- Cylinder block to bearing cover bearing shell retaining lips must be placed on top of each other
2. 30 Nm plus 1/2 turn (180 °)
- Always replace
- Additional tightening of 2 x 90 ° is allowable
3. Bearing shells 1-7
- For bearing covers without oil groove
- For cylinder block with oil groove
- Do not switch worn bearing shells (mark bearing shells)
4. Thrust bearing
- For bearing cover 5
5. Crankshaft
- See note prior to removal
- Axial play new: 0.070.23 mm, max. wear: 0.30 mm
- Measure radial play with Plastigage new: 0.20.06 mm, max. wear: 0.10 mm
- Do not change the position of the crankshaft when measuring radial play
Crankshaft measurements:
- Main bearing: 59.958 - 59.978 mm
- Connecting rod bearing: 53.958 - 53.978 mm
- Finishing not allowable
6. Pulse generator wheel
- For engine speed sensor (G28)
- Installing see Fig. 1
7. 10Nm plus 1/4 turn (90 °)
- Always replace
8. Thrust bearing
- For cylinder block, bearing 5
9. Oil injector
- For crankshaft bearings 2-7
- For piston cooling
- Opening pressure: 2.0 bar over pressure





Fig. 1 Installing pulse-generating wheel on crankshaft
Make sure the crankshaft to pulse-generating wheel connecting surface is free of oil and grease.
- To provide additional fastening, apply a light coat of adhesive D 000 600 to back of pulse-generating wheel.
- Make sure that marker -VR6- (arrow) is aligned with single threaded bore.
- First, lightly tighten all fastening screws by hand.
- Next, tighten fastening screws to 10 Nm plus additional 1/4 turn (90°).