Replacing upper main bearing shell (collar bearing)
- Use the tool (1) to release the upper main bearing shell.
NOTE:
The tool (1) is included in the scope of delivery of the main bearing shell.
- Insert the tool (1) into the oil hole (arrow) on the crankshaft.
NOTE:
RISK OF DAMAGE
Damage to the engine.
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged.
Damage to the engine.
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged.
- Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) Applies only if the timing chain is installed in the rear.
- Turn the crankshaft in the direction of engine rotation.
- Turn the crankshaft until the main bearing shell (1) can be removed from the bearing seat.
- Remove the main bearing shell (1).
- Turn the crankshaft further in the direction of engine rotation until the new main bearing shell can be placed on the crankshaft.
- Oil the main bearing shell (1), bearing seat and crankshaft (3) with motor oil.
- Position the main bearing shell (1) on the bearing seat.
Ensure that the installation position of the guide lug is correct.
- Turn the crankshaft (3) further against the direction of engine rotation until the main bearing shell (1) has been fully inserted with the tool (2) into the bearing seat.