Exhaust Manifold - Right

EXHAUST MANIFOLD RIGHT

REMOVAL
1. Disconnect battery negative cable.
2. Remove the wiper module.
3. Disconnect spark plug wires.

Fig.130:

4. Remove bolts fastening crossover pipe to exhaust manifold.

Fig.133:

5. Disconnect and remove the upstream oxygen sensor.
6. Remove the heat shield attaching screws.
7. Remove the upper heat shield.
8. Raise vehicle on hoist and remove drive belt shield.

Fig.131:

Fig.132:

9. Loosen the power steering pump support strut lower bolt.
10. Disconnect downstream oxygen sensor connector.
11. Disconnect catalytic converter pipe from exhaust manifold.
12. Lower vehicle and remove the power steering pump support strut upper bolt.
13. Remove bolts attaching exhaust manifold to cylinder head and remove manifold.
14. Inspect and clean manifold.

CLEANING
1. Discard gasket (if equipped) and clean all surfaces of manifold and cylinder head.

INSPECTION

Fig.134:

Inspect exhaust manifolds for damage or cracks and check distortion of the cylinder head mounting surface and exhaust crossover mounting surface with a straightedge and thickness gauge.

Manifold surface flatness limits should not exceed 1.0 mm (0.039 in.).

INSTALLATION
1. Position exhaust manifold on cylinder head and install bolts to center runner (cylinder # 3) and initial tighten to 2.8 Nm (25 in. lbs.)
2. Using a new gasket, attach crossover pipe to exhaust manifold and tighten bolts to 41 Nm (30 ft. lbs.).

NOTE: Inspect crossover pipe fasteners for damage from heat and corrosion. The cross-over bolts are made of a special stainless steel alloy. If replacement is required, OEM bolts are highly recommended.

3. Install the remaining manifold attaching bolts. Tighten all bolts to 23 Nm (200 in. lbs.).
4. Position the power steering pump support strut and install upper bolt.
5. Install heat shield and attaching screws.
6. Install and connect upstream oxygen sensor.
7. Raise the vehicle.
8. Attach catalytic converter pipe to exhaust manifold using new gasket and tighten bolts to 37 Nm (27 ft. lbs.).
9. Connect downstream oxygen sensor connector.
10. Tighten the power steering pump support strut lower bolt.
11. Install the belt splash shield and lower the vehicle.
12. Install the wiper module.
13. Connect battery negative cable.