Exhaust System Assembly Overview
Exhaust System Assembly Overview
Front Exhaust System
• The front exhaust system for cylinder bank 1 (right) is shown in the illustration.
1 25 Nm
• Replace
• Tightening specification and sequence: Left => [ Position the left front exhaust manifold
and catalytic converter on the cylinder head. ] Left Exhaust System Tract, right => [ Position the right front exhaust manifold
and catalytic converter on the cylinder head. ] Right Exhaust System Tract
2 Gasket
• Replace
3 23 Nm
• Replace
4 Gasket
• Replace
5 25 Nm
• Replace
• Tightening specification and sequence: Left => [ Position the left rear exhaust manifold
and catalytic converter on the cylinder head. ] Left Exhaust System Tract, right => [ Position the right rear exhaust manifold
and catalytic converter on the cylinder head. ] Right Exhaust System Tract
6 Gasket
• Replace
7 Heated Oxygen Sensor (HO2S) 2 (G108) (in front of catalytic converter)
• For exhaust bank II (cylinder 4, 5)
8 Rear exhaust manifold with catalytic converter
• For exhaust bank II (cylinder 4, 5)
• Protect from shocks and impact stress
• Removing and installing, refer to: Left => [ Left Exhaust System Tract ] Left Exhaust System Tract, right => [ Right Exhaust System Tract ] Right Exhaust System Tract.
9 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G131)
• For exhaust bank II (cylinder 4, 5)
10 23 Nm
• Replace
11 Gasket
• Replace
12 Front muffler
• With flex joint
• Do not bend the flex joint more than 10° or it will be damaged.
• Removing and installing, refer to: Left => [ Left Front Muffler ] Left Front Muffler, right => [ Right Front Muffler ] Right Front Muffler
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
13 Y pipe
• With flex joint
• Do not bend the flex joint more than 10° or it will be damaged.
• Removing and installing, refer to: Left => [ Left Y-Pipe ] Left Y-Pipe, right => [ Right Y-Pipe ] Right Y-Pipe
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
14 23 Nm
• Replace
15 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
• For exhaust bank I (cylinder 1, 2, 3)
16 Gasket
• Replace
17 Front exhaust manifold with catalytic converter
• For exhaust bank I (cylinder 1, 2, 3)
• Protect from shocks and impact stress
• Removing and installing, refer to: Left => [ Left Exhaust System Tract ] Left Exhaust System Tract, right => [ Right Exhaust System Tract ] Right Exhaust System Tract.
18 Heated Oxygen Sensor (HO2S) (G39)(before catalytic converter)
• For exhaust bank I (cylinder 1, 2, 3)
Exhaust System, Rear
1 23 Nm
2 Front clamping sleeve
• Installed location, refer to => [ Installed Position of Front Double Clamps ]
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
3 Retaining loop
• Replace if damaged
4 23 Nm
5 Suspended mount
• Replace if damaged
6 Center muffler
• Original equipment as one unit with rear muffler. For repairs, replace each separately.
• Separating point => [ Separate the exhaust pipes at the separating
point using at a right angle. ] Center Muffler and Rear Muffler, Separating
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
7 23 Nm
8 Rear clamping sleeve
• For individual replacement of center and rear mufflers
• Installed location, refer to => [ Installed Position of Rear Double Clamps ]
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
9 Rear muffler
• For left side of vehicle
• Original equipment as one unit with center muffler. For repairs, replace each separately.
• Separating point => [ Separate the exhaust pipes at the separating
point using at a right angle. ] Center Muffler and Rear Muffler, Separating
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
10 Retaining loop
• Replace if damaged
11 Suspended mount
• Replace if damaged
12 23 Nm
13 23 Nm
• Replace
14 Clamping piece
Individual Mounting Components
1 23 Nm
2 Washer
3 Spring
4 Spacer sleeve
5 Tab
6 Buffer
7 Spacer sleeve
8 Sleeve
9 23 Nm
10 Bracket
11 23 Nm
12 Spacer sleeve
13 Buffer
14 Tab
15 Spring
16 Washer
17 23 Nm
18 Spacer sleeve
Installed Position of Front Double Clamps
- When installing the double clamps, ensure that the bolt ends do not project beyond the lower edge of the double clamp.
• Threaded connections point toward the right.
Installed Position of Rear Double Clamps
- When installing the double clamps, ensure that the bolt ends do not project beyond the lower edge of the double clamp.
• The threaded connections face each other.