Balance Shaft: Service and Repair

Engine Dynamic Balance Shaft

Special Service Tools






Crankshaft TDC timing/locking tool

303-573

Removal
1 Disconnect the battery ground cable. For additional information, refer to Specifications Service and Repair
2
WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.
Raise and support the vehicle.
3 Remove the front wheels and tires.
4 Remove the cylinder block cradle. For additional information, refer to Cylinder Block Cradle Related Tests, Information and Procedures




5 Remove the balance shaft.
- Remove the 4 Torx bolts.
- Remove the drive chain tensioner.
- Remove the tensioner blade.

Installation





1
NOTE:
Vehicles fitted with early type balance shaft.
NOTE:
Due to the gear ratio, it may be necessary to rotate the balance shaft up to 7 complete turns to find the correct position.
Align the balance shaft.
- Clean the components.
- Lubricate the components.
- Install a 4 mm (0.16 in) pin to lock the shaft as shown.




2
NOTE:
Vehicles fitted with later type balance shaft.
NOTE:
If a new balance shaft is being fitted make sure the timing pin is not removed prior to fitting.
NOTE:
Due to the gear ratio, it may be necessary to rotate the balance shaft up to 7 complete turns to find the correct position.
Align the balance shaft.
- Clean the components.
- Lubricate the components.
- Install a 4 mm (0.16 in) pin to lock the shaft as shown and that the shaft can not rotate.
- Make sure the drive gear timing marks are aligned as shown.




3 Rotate crankshaft clockwise until number one cylinder is at TDC and install the special tool.
4 Install the balance shaft.
- Clean the component mating faces.
- Engage the drive chain.
- Install the drive chain tensioner.
- Tighten the Torx bolts to 15 Nm (11 lb.ft).
- Tighten a further 90 degrees.
- Remove the locking pin.
- Remove the special tool.
5 Install the cylinder block cradle. For additional information, refer to Cylinder Block Cradle Related Tests, Information and Procedures
6 Install the front wheels and tires.
7 Connect the battery ground cable. For additional information, refer to Specifications Service and Repair