Crankshaft: Service and Repair

Crankshaft Overview

• Before removing the crankshaft, prepare for appropriate storage, so that the sensor wheel - item 6 - does not make contact or become damaged.

• The engine is to be secured to the engine and transmission holder (VAS 6095) when performing assembly work.






1 Bearing Cap

• Bearing cap 1: Vibration damper side.

• Bearing cap 5, with notches for the thrust washers.

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

2 Bolt

• 30 Nm + an additional 180° (1/2) turn.

• Always replace.

• Two additional 90° turns is permitted.

3 Bearing Shell, 1 through 7

• For bearing caps without a oil groove.

• For the cylinder block with a oil groove.

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

• Crankshaft bearing shell allocating. Refer to => [ Crankshaft Bearing Shell, Allocating ] Service and Repair.

4 Thrust Washer

• For bearing cap 5.

• Observe the locating point.

5 Crankshaft

• If replacing the crankshaft, allocate the crankshaft bearing shells. Refer to => [ Crankshaft Bearing Shell, Allocating ] Service and Repair.

• Before removing, observe the note at the top.

• Axial play:

New: 0.07 to 0.23 mm

Wear limit: 0.30 mm

• Check the radial clearance using Plastigage(R):

0.02 to 0.06 mm

Wear limit:0.10 mm

• Do not rotate the crankshaft when measuring the radial play.

• Crankshaft dimensions:

Crankshaft bearing: 59.958 to 59.978 mm

Connecting rod bearing: 53.958 to 53.978 mm

• It is not permissible to rework the crankshaft.

6 Sensor Wheel

• For the engine speed sensor.

• Always replace.

• Installing, refer to => [ Crankshaft Sensor Wheel, Installing ] Service and Repair.

7 Screw

• 10 Nm + an additional 90° (1/4) turn.

• Always replace.

8 Oil Spray Jet

• For crankshaft bearings 2 through 7.

• For piston cooling.

• Opening pressure:

2.0 bar

• Removing and installing, refer to => [ Oil Spray Jet ] Service and Repair.

• See the note in the cylinder block an attachments overview, refer to one of the following:

Engine code BLV, refer to => [ Cylinder Block and Attachments Overview ] Cylinder Block and Attachments Overview.

Engine code CNNA, refer to => [ Cylinder Block and Attachments Overview ] Cylinder Block and Attachments Overview.