Variable Valve Timing Actuator: Service and Repair

VVT unit

Operation number: 21557-2

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, B6324S 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, B6324S Outer Timing Cover Gasket

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(R) 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 Specifications, B6324S 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(R) 60
Tighten center bolt, exhaust camshaft. Refer to Specifications, B6324S Tightening Torque
Tighten center bolt, inlet camshaft. Refer to Specifications, B6324S 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(R) 60

Install the outer timing cover. Refer to: Outer timing cover gasket, B6324S Outer Timing Cover Gasket.

Remove special tool 999 7261 Position sensor 999 7261 Position Sensor

999 7257 Wrench 999 7257 Wrench

M12. Refer to Specifications, B6324S Tightening Torque

999 7271 Support 999 7271 Support

Fit the front crankshaft seal. Refer to: crankshaft front seal, B6324S Service and Repair.