EXHAUST SYSTEM REMOVAL/INSTALLATION [L5]

EXHAUST SYSTEM REMOVAL/INSTALLATION [L5]SM2444793

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Warning

• A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.

1.Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [L5].)

2.Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [L5].)

3.Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [L5].)

4.Remove in the order indicated in the table.

5.Remove the exhaust system insulator. (See Exhaust System Insulator Removal/installation Note.)

6.Install in the reverse order of removal.

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1	Main silencer (See Main Silencer Installation Note.)
2	Seal ring (TWC side) (See Seal Ring Removal Note.) (See Seal Ring (TWC Side) Installation Note.)
3	TWC
4	HO2S (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [L5].)
5	A/F sensor (See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [L5].)
6	WU-TWC (See WU-TWC Removal Note.) (See WU-TWC Installation Note.)
7	Seal ring (exhaust manifold side) (See Seal Ring Removal Note.) (See Seal Ring (Exhaust Manifold Side) Installation Note.)
8	Exhaust Manifold Insulator (upper) (See Exhaust Manifold Insulator (upper) Installation Note.)
9	Exhaust manifold bracket
10	Exhaust Manifold Insulator (lower)
11	Exhaust manifold (See Exhaust Manifold Installation Note.)
12	Exhaust manifold gasket

Exhaust System Insulator Removal/installation Note

1.Remove the exhaust system insulator in the order shown in the figure.

2.Install in the reverse order of removal.

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1	Insulator (front)
2	Insulator (middle)
3	Insulator (rear)

Seal Ring Removal Note

1.Remove the seal ring using a flathead screwdriver being careful not to damage the pipe.

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WU-TWC Removal Note

1.Remove the generator duct. (See GENERATOR REMOVAL/INSTALLATION [L5])

2.Remove the WU-TWC.

Exhaust Manifold Installation Note

1.Temporarily tighten the exhaust manifold installation nuts.

2.Tighten the exhaust manifold new installation nuts in the order shown in the figure.

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Tightening torque

43—64 N·m {4.4—6.5 kgf·m, 32—47 ft·lbf}

Exhaust Manifold Insulator (upper) Installation Note

1.Temporarily tighten the exhaust manifold insulator (upper).

2.Tighten the exhaust manifold insulator (upper) in the order shown in the figure.

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Tightening torque

8—10 N·m {82—101 kgf·cm, 71—88 in·lbf}

Seal Ring (Exhaust Manifold Side) Installation Note

Caution

• If installation is performed without using the SST, the seal ring will be damaged and deformed, resulting in an incorrect installation. Always use the SST to install the seal ring.

1.Temporarily install the seal ring to the pipe so that the seal ring is even with the flange.

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2.Install the SST to the seal ring so that the SST is even with the flange.

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3.Press in the seal ring by tapping the SST using a plastic hammer until the seal ring contacts the flange.

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WU-TWC Installation Note

1.Spray carbon remover (TB6601 or equivalent) on the flared section of the exhaust pipe.

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2.Remove the carbon adhering to the flared section shown in the figure using a nylon brush or sandpaper (No. 400 or equivalent).

Seal Ring (TWC Side) Installation Note