EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5T]

id0115q4800200

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.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove in the order indicated in the table.

3.  Remove the insulator. (See Exhaust System Insulator Removal/Installation.)

4.  Install in the reverse order of removal.

Step 1

am6xuw00010701

1
Main silencer
2
Plate
(See Plate Installation Note.)
3
Brace bar
(See Brace Bar Removal Note.)
(See Brace Bar Installation Note.)
4
Tunnel member
(See Tunnel Member Installation Note.)
5
HO2S
(See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
6
TWC

Step 2

am6zzw00018484

1
Insulator No.1
(See Insulator No.1 Removal Note.)
(See Insulator No.1 Installation Note.)
2
A/F sensor
(See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
3
Insulator No.2
(See Insulator No.2 Installation Note.)
4
WU-TWC
(See WU-TWC Installation Note.)
5
Insulator No.3
6
Dynamic pressure turbo
(See DYNAMIC PRESSURE TURBO REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)
7
Exhaust manifold
(See Exhaust Manifold Installation Note.)


Brace Bar Removal Note

1.  Remove the floor under cover. (See FLOOR UNDER COVER REMOVAL/INSTALLATION.)

2.  Remove the brace bar.


Insulator No.1 Removal Note

1.  Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)

2.  Remove the front under cover No.2. (See FRONT UNDER COVER No.2 REMOVAL/INSTALLATION.)

3.  Remove the insulator No.1.


Exhaust Manifold Installation Note

1.  Tighten the nuts in the order shown in the figure.

ac9uuw00009492

Tightening torque
45—52 N·m {4.6—5.5 kgf·m, 34—38 ft·lbf}


WU-TWC Installation Note

1.  Temporarily tighten the WU-TWC installation nuts.

2.  Tighten the WU-TWC installation nuts in the order shown in the figure to the specified torque.

ac9uuw00009493

Tightening torque
45—62 N·m {4.6—6.3 kgf·m, 34—45 ft·lbf}

3.  Temporarily tighten the WU-TWC installation bolt.

4.  Tighten the WU-TWC installation bolt to the specified torque.

Tightening torque
38—51 N·m {3.9—5.2 kgf·m, 29—37 ft·lbf}


Insulator No.2 Installation Note

1.  Tighten the bolts in the order shown in the figure.

ac9uuw00009494

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


Insulator No.1 Installation Note

1.  Install the insulator No.1.

2.  Install the front under cover No.2. (See FRONT UNDER COVER No.2 REMOVAL/INSTALLATION.)

3.  Install the cowl panel. (See COWL PANEL REMOVAL/INSTALLATION.)

4.  Install the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)


Tunnel Member Installation Note

1.  Tighten bolt A shown in the figure to the specified torque.

am6xuw00010703

Tightening torque
18—26 N·m {1.9—2.6 kgf·m, 14—19 ft·lbf}

2.  Tighten bolt B shown in the figure to the specified torque.

Tightening torque
18—26 N·m {1.9—2.6 kgf·m, 14—19 ft·lbf}

3.  Tighten the remaining bolts to the specified torque.

Tightening torque
18—26 N·m {1.9—2.6 kgf·m, 14—19 ft·lbf}


Brace Bar Installation Note

1.  Tighten bolt A shown in the figure to the specified torque.

am6xuw00010704

Tightening torque
18—26 N·m {1.9—2.6 kgf·m, 14—19 ft·lbf}

2.  Tighten bolt B shown in the figure to the specified torque.

Tightening torque
18—26 N·m {1.9—2.6 kgf·m, 14—19 ft·lbf}

3.  Tighten the remaining bolts to the specified torque.

Tightening torque
18—26 N·m {1.9—2.6 kgf·m, 14—19 ft·lbf}

4.  Install the floor under cover. (See FLOOR UNDER COVER REMOVAL/INSTALLATION.)


Plate Installation Note

1.  Install fastener A shown in the figure.

am6xuw00010705

2.  Install fastener B shown in the figure.

3.  Install the remaining fasteners.

4.  Tighten the bolts shown in the figure to the specified torque.

Tightening torque
9—12 N·m {92—122 kgf·cm, 80—106 in·lbf}


Exhaust System Insulator Removal/Installation

1.  Remove in the order indicated in the table.

2.  Install in the reverse order of removal.

am6xuw00010706

1
Insulator (rear)
(See Insulator (Rear) Removal Note.)
(See Insulator (Rear) Installation Note.)
2
Insulator (middle)
(See Insulator (Middle) Installation Note.)
3
Insulator (front)
(See Insulator (Front) Installation Note.)


Insulator (Rear) Removal Note

Note
•  The insulator (rear) are installed using rivets.

1.  Push out the mandrel using a hammer and punch (2—2.8 mm {0.08—0.11 in} diameter).

ac5uuw00000434

2.  Remove the flange using a drill (5 mm {0.20 in} drill bit).

ar8uuw00001479


Insulator (Front) Installation Note

1.  Tighten nut A shown in the figure to the specified torque.

am6xuw00010707

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

2.  Tighten the remaining nuts to the specified torque.

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


Insulator (Middle) Installation Note

1.  Tighten nut A shown in the figure to the specified torque.

am6xuw00010708

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

2.  Tighten nut B shown in the figure to the specified torque.

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

3.  Tighten the remaining nuts to the specified torque.

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


Insulator (Rear) Installation Note

1.  Install rivets A shown in the figure.

am6xuw00010709

2.  Install the remaining rivets.