Exhaust Manifold Removal and Installation

Exhaust Manifold Removal and Installation

Exhaust System Components

Removal

CAUTION:

Touching a hot exhaust system component will cause a burn.

Do not perform any service work on the exhaust system until the exhaust system is cool.

NOTE:

Applying a shock to the exhaust manifold may cause damage to the three-way catalytic converter inside the exhaust manifold.

Handle the exhaust manifold carefully. Be careful not to drop it or hit it against something.

1) Disconnect negative (-) cable from battery.
2) Remove exhaust manifold cover.

3) Disconnect A/F sensor connector (1) and HO2S connector (2), and then detach them from their brackets.





4) Remove exhaust pipe No.1 (1).





5) Remove oil level gauge and oil level gauge guide (1).
6) Remove exhaust manifold (2) and its gasket from cylinder head.





7) Remove A/F sensor and HO2S if necessary. Service and Repair

Installation

Reverse removal procedure noting the following.

- Use new gaskets and new seal rings.
- Install A/F sensor and HO2S. Service and Repair
- Use new O-ring (2) for oil level gauge guide (1) and apply engine oil to it when installing oil level gauge guide to oil pan (3).





- Tighten oil level gauge guide bolt (1) to specified torque.

Tightening torque
Oil level gauge guide bolt (a): 11 Nm (1.1 kgf-m, 8.5 lbf-ft)





- Run engine and check for exhaust leaks.