Variable Valve Timing Actuator: Service and Repair

Operation number: 21557-2

VVT unit

Note! Some variation in the illustrations may occur, but the essential information is always correct.

Removal

Remove the front crankshaft seal. Refer to: crankshaft front seal, B6324S5 Service and Repair

Rotate the engine to the zero position. 999 7257 Wrench 999 7257 Wrench

999 7261 Position sensor 999 7261 Position sensor

Remove the outer timing cover. Refer to: Outer timing cover gasket, B6324S5 Gasket, Outer Timing Cover

Raise the tensioner's lock plate (1) slightly and press the tensioner together (2). Secure with a steel wire, drill or the like of - 2 mm in the tensioner hole (3).

Attach the following items:
- 999 7263 Counterhold 999 7263 Counterhold
- 999 7264 Counterhold 999 7264 Counterhold
- 999 7272 TORX 60 999 7272 TORX 60

Fit the VVT units without chain.
Torque: VVT unit, center screw, 30 Nm

Check that the VVT units are locked by turning them in both directions.
Remove the VVT units.

Installation

Install the VVT units together with the chain. Do not tighten.

M7. Refer to: Tightening torque, B6324S5 Tightening Torque

Attach the following items:
- 999 7263 Counterhold 999 7263 Counterhold
- 999 7264 Counterhold 999 7264 Counterhold
- 999 7272 TORX 60 999 7272 TORX 60
Tighten centre bolt, exhaust camshaft. Refer to: Tightening torque, B6324S5 Tightening Torque
Tighten centre bolt, inlet camshaft. Refer to: Tightening torque, B6324S5 Tightening Torque

Remove the following items:
- 999 7263 Counterhold 999 7263 Counterhold
- 999 7264 Counterhold 999 7264 Counterhold
- 999 7272 TORX 60 999 7272 TORX 60

Install the outer timing cover. Refer to: Outer timing cover gasket, B6324S5 Gasket, Outer Timing Cover.

Remove special tool 999 7261 Position sensor 999 7261 Position sensor

999 7257 Wrench 999 7257 Wrench

M12. Refer to: Tightening torque, B6324S5 Tightening Torque

999 7271 Support 999 7271 Support

Fit the front crankshaft seal. Refer to: crankshaft front seal, B6324S5 Service and Repair.