Valve Rocker Arm Cover Replacement - Right Side
Valve Rocker Arm Cover Replacement - Right Side
Removal Procedure
1. Remove the generator. Refer to Generator Replacement (LZ4) (Generator Replacement)Generator Replacement (LY7) (Generator Replacement).
2. Remove the engine coolant crossover pipe. Refer to Engine Coolant Crossover Pipe Replacement (LZ4) (Service and Repair).
3. Disconnect the positive crankcase ventilation (PCV) fresh air tube (1) from the air cleaner outlet duct. Refer to Plastic Collar Quick Connect Fitting Service (Plastic Collar Quick Connect Fitting Service).
4. Remove the PCV fresh air tube from the right rocker arm cover.
5. Disconnect the engine wiring harness electrical connector (1) from the manifold absolute pressure (MAP) sensor.
6. Disconnect the engine wiring harness electrical connector (2) from the fuel injector wiring harness electrical connector.
7. Remove the ignition coil assembly. Refer to Ignition Coil Replacement (Service and Repair)
8. Loosen the rocker arm cover bolts.
Important: When removing the valve rocker arm cover make sure the gasket stays in place attached to the cylinder head.
9. Remove the rocker arm cover (2). If necessary, bump the end of the cover with the palm of your hand or a soft rubber mallet if the cover adheres to the cylinder head.
10. Cut the room temperature vulcanizing (RTV) sealer in the channel where the intake, cylinder head, and rocker cover meet with a suitable tool.
11. Remove the rocker arm cover gasket.
Installation Procedure
1. All gasket mating surfaces need to be free of oil and foreign material. Use GM P/N 12346139 (Canadian P/N 10953463) or equivalent to clean the surfaces.
2. Install the rocker arm cover gasket into the rocker arm cover.
3. Apply sealer to the surfaces where the cylinder head and the intake manifold meet (1). Refer to Sealers, Adhesives, and Lubricants (Specifications).
4. Place the rocker arm cover (2) onto the cylinder head.
Notice: Refer to Fastener Notice (Fastener Notice).
5. Tighten the rocker arm cover bolts.
Tighten the bolts to 10 N.m (89 lb in).
6. Install the ignition coil assembly. Refer to Ignition Coil Replacement (Service and Repair).
7. Connect the engine wiring harness electrical connector (2) to the fuel injector wiring harness electrical connector.
8. Connect the engine wiring harness electrical connector (1) to the MAP sensor.
9. Install the PCV fresh air tube to the right rocker arm cover.
10. Connect the PCV fresh air tube (1) to the air cleaner outlet duct. Refer to Plastic Collar Quick Connect Fitting Service (Plastic Collar Quick Connect Fitting Service).
11. Install the engine coolant crossover pipe. Refer to Engine Coolant Crossover Pipe Replacement (LZ4) (Service and Repair).
12. Install the generator. Refer to Generator Replacement (LZ4) (Generator Replacement)Generator Replacement (LY7) (Generator Replacement).