Cylinder Head - RH
Cylinder Head - RHMaterial:
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. For additional information, refer to Maintenance/Service and Repair.
2. Remove the RH camshafts.
3. Remove the coolant bypass tube. For additional information, refer to Cooling System.
4. Remove the bolt and detach the power steering pressure (PSP) tube bracket from the back of the cylinder head.
5. Remove the RH catalytic converter. For additional information, refer to Catalytic Converter.
6. CAUTION: The camshaft roller followers must be installed in their original positions.
NOTE: Mark the location of the roller followers, using a permanent-type marker.
Remove the camshaft roller followers.
7. Loosen the 8 bolts in the sequence shown and remove the cylinder head.
^ Discard the bolts and the gasket.
8. 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.
CAUTION: 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.
1 Remove any large deposits of silicone or gasket material with a plastic scraper.
2 Apply silicone gasket remover, following package directions, and allow to set for several minutes.
3 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.
4 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.
9. Support the cylinder head on a bench with the head gasket side up.
10. NOTE: The straightedge used must be flat within 0.0051 mm (0.0002 inch) per foot of tool length.
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).
Installation
1. Position a new gasket and the cylinder head on the engine.
2. NOTE: New cylinder head bolts must be installed. They are torque-to-yield designed and cannot be reused.
Install the 8 bolts and tighten in 6 stages in the sequence shown.
^ Stage 1: Tighten to 40 Nm (30 ft. lbs.).
^ Stage 2: Tighten 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.
3. CAUTION: The camshaft roller followers must be installed in their original positions.
NOTE: Lubricate the camshaft roller followers with clean engine oil.
Install the camshaft roller followers.
4. Install the RH catalytic converter. For additional information, refer to Catalytic Converter.
5. Position the PSP tube bracket onto the rear of the cylinder head and install the bolt.
^ Tighten to 9 Nm (80 inch lbs.).
6. Install the RH camshafts.
7. Install the coolant bypass tube. For additional information, refer to Cooling System.