EXHAUST SYSTEM REMOVAL/INSTALLATION [L3]

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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 in the order indicated in the table.

2.  Install in the reverse order of removal.

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1
After-silencer
2
Main silencer
3
HO2S
(See A/F sensor, HO2S Removal Note.)
4
TWC
(See TWC Removal Note.)
5
Seal ring
(SeeSeal Ring Removal Note.)
(SeeSeal Ring Installation Note.)
6
A/F sensor
(See A/F sensor, HO2S Removal Note.)
7
Exhaust manifold insulator
(See Exhaust Manifold Insulator Installation Note.)
8
Exhaust manifold
(See Exhaust Manifold Installation Note.)
9
Exhaust manifold bracket
(See Exhaust Manifold Bracket Installation Note.)


A/F sensor, HO2S Removal Note

1.  Remove the A/F sensor, HO2S using the SST.

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TWC Removal Note

1.  Remove the transverse member. (See FRONT CROSSMEMBER REMOVAL/INSTALLATION.)

2.  Remove the splash shield.

3.  Remove the under cover.

4.  Remove the TWC.


Seal Ring Removal Note

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

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Exhaust Manifold Bracket Installation Note

1.  Tighten the exhaust manifold bracket No.1 installation bolts shown in the figure.

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Exhaust manifold bracket No.1 installation bolt tightening torque
39—46 N·m {4.0—4.6 kgf·m, 29—33 ft·lbf}

2.  Temporarily tighten the exhaust manifold bracket No.2 installation bolts shown in the figure.

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3.  Install the exhaust manifold. (See Exhaust Manifold Installation Note.)

4.  Temporarily tighten the No.1 shown in the figure.

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5.  Tighten the No.1 shown in the figure.

Exhaust manifold bracket No.2 installation bolt tightening torque
38—51 N·m {3.9—5.2 kgf·m, 29—37 ft·lbf}

6.  Tighten the No.2 shown in the figure.

Exhaust manifold bracket No.2 installation bolt tightening torque
38—51 N·m {3.9—5.2 kgf·m, 29—37 ft·lbf}


Exhaust Manifold Installation Note

1.  Temporarily tighten the exhaust manifold installation bolts.

2.  Tighten the exhaust manifold installation bolts in the order shown in the figure.

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Exhaust manifold installation bolt tightening torque
43—64 N·m {4.4—6.5 kgf·m, 32—47 ft·lbf}


Exhaust Manifold Insulator Installation Note

1.  Temporarily tighten the exhaust manifold insulator installation bolts.

2.  Tighten the exhaust manifold insulator installation bolts in the order shown in the figure.

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Exhaust manifold insulator installation bolts tightening torque
7.8—10.8 N·m {80—110 kgf·cm, 69—95 in·lbf}


Seal Ring 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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