Corvette V8-6.2L (2008)
Exhaust Manifold: Service and Repair
Exhaust Manifold Replacement - Left Side (6.0L)
Exhaust Manifold Replacement - Left Side (6.0L)
Removal Procedure
1. Remove the engine sight cover. Refer to Upper Intake Manifold Sight Shield Replacement (See: Engine/Intake Manifold/Service and Repair) .
Notice: Refer to Excessive Force and Oxygen Sensor Notice (See: Powertrain Management/Computers and Control Systems/Oxygen
Sensor/Service Precautions/Excessive Force and Oxygen Sensor Notice) .
2. Remove the bank 1, sensor 1 oxygen sensor from the exhaust manifold. Refer to Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (See:
Powertrain Management/Computers and Control Systems/Oxygen Sensor/Service and Repair) .
3. Remove the spark plugs. Refer to Spark Plug Replacement (See: Engine/Tune-up and Engine Performance Checks/Spark Plug/Service and Repair
) .
4. Remove the generator. Refer to Generator Replacement (See: Starting and Charging/Charging System/Alternator/Service and Repair/Generator
Replacement) .
5. Remove the catalytic convertor. Refer to Catalytic Converter Replacement - Left Side (6.0L) (See: Catalytic Converter/Service and
Repair/Catalytic Converter Replacement - Left Side (6.2L))Catalytic Converter Replacement - Left Side (7.0L).
6. Remove the exhaust manifold bolts.
Important: It may be necessary to remove the heat assembly from the exhaust manifold to gain enough clearance to remove the exhaust
manifold.
7. Remove the exhaust manifold.
Installation Procedure
Important: Tighten the exhaust manifold bolts as specified in the service procedure. Improperly installed and/or leaking exhaust manifold
gaskets may effect vehicle emissions and/or On-Board Diagnostics (OBD) II system performance.
The cylinder head exhaust manifold bolt hole threads must be cleaned and free of debris or threadlocking material.
Important: In the following service procedure, position the catalytic convertor on the intermediate pipe, but DO NOT tighten the clamp.
Leave it loose to allow the alignment of the exhaust manifold on the cylinder head.
1. Install the catalytic convertor.
2. Apply a 5 mm (0.2 in) wide band of threadlock GM P/N 12345493 (Canadian P/N 10953489), or equivalent to the threads of the exhaust manifold
bolts.
