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Exhaust Manifold Removal and Installation
Reference: Exhaust Manifold Components:M13A
Removal
WARNING:
To avoid danger of being burned, do not service exhaust system while it is still hot. Service should be performed after system cools down.
1) Disconnect negative cable at battery.
2) Disconnect heated oxygen sensor coupler (1) (if equipped) and detach it from its stay.
3) Remove exhaust manifold cover (2).
4) Remove exhaust manifold stiffener (1).
5) Disconnect exhaust pipe (1) from exhaust manifold.
6) Remove exhaust manifold (1) and its gasket from cylinder head.
Installation
Reference: Exhaust Manifold Inspection:M13A
1) Install new gasket to cylinder head. Then install exhaust manifold.
Tighten manifold nuts to specified torque.
Tightening torque
Exhaust manifold nut ( a ): 55 N·m ( 5.5 kg-m, 40.0 lb-ft)
2) Install seal ring and install exhaust pipe (1) to exhaust manifold.
Before installing seal ring, check it for deterioration or damage, and replace as necessary.
Tighten pipe fasteners to specified torque.
Tightening torque
Exhaust pipe bolts ( a ): 50 N·m ( 5.0 kg-m, 36.5 lb-ft)
3) Install exhaust manifold stiffener (1).
Tighten exhaust manifold stiffener bolts to specified torque.
Tightening torque
Exhaust manifold stiffener bolt ( a ): 50 N·m ( 5.0 kg-m, 36.5 lb-ft)
4) Install exhaust manifold cover (1).
5) Connect heated oxygen sensor coupler (2) and fit coupler to bracket securely (if equipped).
6) Connect negative cable at battery.
7) Check exhaust system for exhaust gas leakage.