Removal

REMOVAL

Cylinder Head - LH

Material:

Removal

CAUTION: 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, can cause engine failure.

1. With the vehicle in NEUTRAL, position it on a hoist. Vehicle Lifting
2. Remove the lower intake manifold. Service and Repair
3. Remove the left hand catalytic converter Service and Repair
4. Remove the coolant bypass tube.
Bypass Tube - 3.OL Removal and Installation






5. Remove the thermostat housing. Service and Repair
6. Remove the bypass tube-to-thermostat housing hose. Thermostat Housing
7. Disconnect the Engine Coolant Temperature (ECT) sensor electrical connector.






8. Detach the wiring harness retainer from the bypass tube stud bolt.
9. Remove the bolt stud bolt and bypass tube.
^ To install tighten the bolt and stud bolt to 10 Nm (89 lb-in).
10. Remove and inspect the 0-ring seals install new seals if necessary.
11. To install reverse the removal procedure.
^ Lubricate the 0-ring seals with clean engine coolant.
12. Remove LH camshafts. Service and Repair






13. Remove the 3 bolts and position the coolant pump aside. Service and Repair






14. CAUTION: The camshaft roller followers must be installed in their original positions or damage to the engine may occur.

NOTE: Mark the location of the roller followers using a permanent-type marker.

Remove the camshaft roller followers.
15. Loosen the 8 bolts in the sequence shown and remove the cylinder head.






^ Discard the bolts and the gasket.

16. CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.

NOTE: Observe all warnings or cautions and follow all application directions contained on the packaging of the silicone gasket remover and the metal surface prep.

NOTE: If there is no residual gasket material present, metal surface prep can be used to clean and prepare the surfaces.

Clean the cylinder head-to-cylinder block mating surface of both the cylinder head and the cylinder block.
A. Remove any large deposits of silicone or gasket material with a plastic scraper.
B. Apply silicone gasket remover, following package directions, and allow to set for several minutes.
C. Remove the silicone gasket remover with a plastic scraper. A second application of silicone gasket remover may be required if residual traces of silicone or gasket material remain.
D. Apply metal surface prep, following package directions, to remove any traces of oil or coolant, and to prepare the surfaces to bond with the new gasket. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.
17. Support the cylinder head on a bench with the head gasket side up. Service and Repair

18. NOTE: The straightedge used must be flat within 0.005 mm (0.0002 inch) per foot of tool length.

Inspect all areas of the deck face with a straightedge (Snap-On GA438A or equivalent) and feeler gauge. For example, if the Straightedge is 61 cm (24 in) long, the machined edge must be flat within 0.010 mm (0.0004 in) from end to end.