Cylinder Head - LH

Cylinder Head - LH





NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, may cause engine failure.

1. Install a new gasket, the LH cylinder head and 8 new bolts. Tighten in the sequence shown in 5 stages:
- Stage 1: Tighten to 20 Nm (177 lb-in).

- Stage 2: Tighten to 35 Nm (26 lb-ft).

- Stage 3: Tighten 90 degrees.

- Stage 4: Tighten 90 degrees.

- Stage 5: Tighten 45 degrees.






2. Install the M6 bolt.
- Tighten to 10 Nm (89 lb-in).






3. NOTE: The valve tappets must be installed in their original positions.

NOTE: Coat the valve tappets with clean engine oil prior to installation.
Install the valve tappets.






4. Install the LH secondary timing chain tensioner and the 2 bolts.
- Tighten to 10 Nm (89 lb-in).






5. Install the upper LH primary timing chain guide and the bolt.
- Tighten to 10 Nm (89 lb-in).






6. NOTICE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.

Using new gaskets, install the lower intake manifold and the 10 bolts.
- Tighten in the sequence shown to 10 Nm (89 lb-in).






7. Using a new gasket and O-ring seal, install the thermostat housing and the 3 bolts.
- Tighten to 10 Nm (89 lb-in).






8. NOTICE: Use O-ring seals that are made of special fuel-resistant material. The use of ordinary O-rings may cause the fuel system to leak. Do not reuse the O-ring seals.

NOTE: The upper and lower O-ring seals are not interchangeable.

Install new fuel injector O-ring seals.
- Remove the retaining clips and separate the fuel injectors from the fuel rail.

- Remove and discard the O-ring seals.

- Install new O-ring seals and lubricate with clean engine oil.

- Install the fuel injectors and the retaining clips onto the fuel rail.






9. Install the fuel rail and injectors as an assembly and install the 4 bolts.
- Tighten to 10 Nm (89 lb-in).






10. Install the coolant bypass hose to the thermostat housing.





11. Install the RH cylinder block drain plug or, if equipped, the block heater.
- Tighten the cylinder block drain plug to 10 Nm (89 lb-in) plus an additional 720 degrees.

- Tighten the block heater to 40 Nm (30 lb-ft).






12. If equipped, install the block heater wiring harness onto the engine.
- Connect the block heater electrical connector and install the heat shield.






13. Using a new gasket, install the RH catalytic converter and 4 new nuts.
- Tighten to 40 Nm (30 lb-ft).






14. Install the LH cylinder block drain plug.
- Tighten to 16 Nm (142 lb-in) plus an additional 180 degrees.






15. Install 6 new LH exhaust studs.
- Tighten to 12 Nm (106 lb-in).






16. Using a new gasket, install the LH catalytic converter and 3 new lower LH catalytic converter manifold-to-cylinder head nuts.
- Install the 3 new upper LH catalytic converter manifold-to-cylinder head nuts and tighten to 25 Nm (18 lb-ft).

- Tighten the 3 lower LH catalytic converter manifold-to-cylinder head nuts to 25 Nm (18 lb-ft).






17. Install the LH exhaust heat shield and the 4 bolts.
- Tighten to 10 Nm (89 lb-in).






18. Attach the Engine Oil Pressure (EOP) switch wiring harness pin-type retainer.





19. Install the stud, generator and the nut and bolt.
- Tighten the stud to 12 Nm (106 lb-in).

- Tighten the nut and bolt to 48 Nm (35 lb-ft).






20. Connect the generator electrical connector.





21. Connect the generator B+ cable and install the nut.
- Tighten to 17 Nm (150 lb-in).






22. Attach the pin-type wire harness retainer to the rear of LH cylinder head.





23. Connect the LH Catalyst Monitor Sensor (CMS) electrical connector.





24. Connect the LH Heated Oxygen Sensor (HO2S) electrical connector.





25. Install the LH Camshaft Position (CMP) sensor and the bolt.
- Tighten to 10 Nm (89 lb-in).






26. Connect the LH CMP (Camshaft Position) sensor electrical connector.





27. Connect the Cylinder Head Temperature (CHT) sensor electrical connector.





28. Connect the 6 fuel injector electrical connectors (3 shown).





29. Install the LH camshafts. For additional information, refer to Camshaft Installation.