Crankshaft: Service and Repair

Crankshaft Overview

• The crankshaft bearing shells must be reallocated if the crankshaft or cylinder block is replaced. Refer to=> [ Crankshaft Bearing Shell, Allocating ] Service and Repair.

• 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 bearing shells and cylinder block/bearing caps must lie above one another.

2 Bolt

• 30 Nm + 180° (1/2) additional turn.

• Replace

• 2 additional 90° turns is permitted.

3 Bearing Shells 1 through 7

• For bearing cap without the oil groove.

• For the cylinder block with the oil groove.

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

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

4 Thrust Washer

• For bearing cap 5.

• Observe 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.

• Axial play new: 0.07 to 0.23 mm, wear limit: 0.30 mm.

• Check radial clearance with Plastigage, new: 0.02 to 0.06 mm, wear limit: 0.10 mm.

• Do not turn the crankshaft when measuring 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

• Replace

• For the engine speed (RPM) sensor (G28).

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

7 Screw

• 10 Nm + 90° (1/4) additional turn.

• 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, Removing
and Installing ] Oil Pan, Pump and Filter Housing Overview.

• See note => [ The engine is to be secured to the when
performing assembly work. ] Service and Repair.