LH

Cylinder Head LH





Material

Removal
1. Remove the lower intake manifold.
2. Remove the coolant bypass tube.
3. Remove the LH camshafts.

4. CAUTION: The camshaft followers must be installed in their original position.





Remove the camshaft followers.

5. CAUTION: The hydraulic lash adjusters must be installed in their original position.





Remove the hydraulic lash adjusters.
6. Position the water pump and housing aside.
7. Raise and support the vehicle on a hoist.
8. Remove the LH exhaust manifold.





9. Remove the oil level indicator tube stud bolt.
10. Lower the vehicle.

11. NOTE: New cylinder head bolts must be installed. They are torque-to-yield designed and cannot be reused.





Remove the bolts in the sequence shown and remove the cylinder head.
- Discard the gasket and the bolts.

12. NOTE: The straightedge used must be flat within 0.0051 mm (0.0002 inch) per foot of tool length.

Support the cylinder head on a bench with the head gasket side up. Inspect all areas of the deck face with a straightedge and feeler gauge. The cylinder head must not have depressions deeper than 0.0254 mm (0.001 inch) across a 38.1 mm (1.5 inch) square area, or scratches more than 0.0254 mm (0.001 inch) deep.

Installation

1. 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 which make leak paths. Use a plastic scraping tool to remove all traces of the head gasket. Clean all sealing surfaces with metal surface cleaner.

NOTE: New cylinder head bolts must be installed. They are torque-to-yield designed and cannot be reused.





Position the LH cylinder head and gasket and install the bolts. Tighten the bolts in six stages, in the sequence shown:
- Stage 1: Tighten to 40 Nm (30 ft. lbs.).
- Stage 2: Tighten bolts 90 degrees.
- Stage 3: Loosen one full turn.
- Stage 4: Tighten to 40 Nm (30 ft. lbs.).
- Stage 5: Tighten 90 degrees.
- Stage 6: Tighten 90 degrees.
2. Install the water pump.
3. Raise the vehicle.





4. Install the stud bolt.
5. Install the LH exhaust manifold.
6. Lower the vehicle.





7. Install the hydraulic lash adjusters.
- Lubricate the hydraulic lash adjusters with clean engine oil.





8. Install the camshaft followers.
- Lubricate the camshaft followers with clean engine oil.
9. Install the LH camshafts.
10. Install the coolant bypass tube.
11. Install the lower intake manifold.