Valve Cover: Service and Repair

Valve Cover

Service Repair No - 12.13.22 or 12.13.28

Special Service Tools





Removal

NOTE: The cylinder head and valve cover are machined as a pair, and cannot be serviced separately.

1. WARNING: Make sure to support the vehicle with axle stands.

Raise and support the vehicle.

2. Remove the cover and disconnect the battery ground cable.
3. Remove the timing component housing.
4. Remove the crankcase vent oil separator.
5. Remove the engine RH mount.
6. Remove the 6 ignition coil-on-plugs.
7. Disconnect the engine ground cable.
8. Disconnect the RH front HO2S electrical connector.





9. Disconnect the 6 fuel injector electrical connectors.





10. Disconnect the 2 camshaft position (CMP) sensor electrical connectors.





11. Remove the 2 CMP sensors.





12. Disconnect the variable valve timing (VVT) solenoid.

13. CAUTION: Extreme cleanliness must be exercised when handling this component.

Remove the VVT solenoid.





14. Disconnect the camshaft profile switching (CPS) solenoids.

15. CAUTION: Extreme cleanliness must be exercised when handling this component.

Remove the CPS solenoids.





16. Release the cylinder head wiring harness.





17. Remove the 2 lifting brackets.





18. Remove the valve cover.





19. Remove and discard the 6 O-ring seals.





20. NOTE: Do not disassemble further if the component is removed for access only.

Remove the oil filler cap.
21. Remove the 2 clips.





Installation

1. Install the clips.
2. Install the oil filler cap.

3. CAUTION: Extreme cleanliness must be exercised when handling these components.

CAUTION: Make sure that the mating faces are clean and free of corrosion and foreign material.

Clean the component mating faces.

4. Install new O-ring seals.
5. For sealant information, refer to the engine specifications.
6. Apply the sealant as shown.

Special Service Tools: Roller, Sealant





7. CAUTION: Extreme cleanliness must be exercised when handling these components.

Position the camshafts, if required.





8. NOTE: The component must be installed within 20 minutes of the sealant application.

NOTE: Do not tighten at this stage.

Using the sequence illustrated, tighten the valve cover to cylinder head bolts evenly and progressively a few turns at a time, until there is full contact.





9.
Torque:
16 Nm





10.
Torque:
16 Nm





11. Install the lifting brackets.

Torque:
48 Nm

12. Secure the cylinder head wiring harness.

Torque:
6 Nm

13. CAUTION: Extreme cleanliness must be exercised when handling this component.

CAUTION: A new O-ring seal is to be installed.

Install the CPS solenoids.
Torque:
10 Nm

14. Connect the CPS solenoids.

15. CAUTION: Apply clean engine oil to the VVT solenoid shaft.

CAUTION: Extreme cleanliness must be exercised when handling this component.

CAUTION: A new O-ring seal is to be installed.

Install the VVT solenoid.

Torque:
10 Nm

16. Connect the VVT solenoid.
17. Install the CMP sensors.

Torque:
10 Nm

18. Connect and secure the CMP sensor electrical connectors.
19. Connect the fuel injector electrical connectors.
20. Connect the ground cable.

Torque:
6 Nm

21. Install the engine mount.
22. Install the ignition coil-on-plugs.
23. Install the crankcase vent oil separator.
24. Install the timing component housing.
25. Connect the battery ground cable and install the cover.