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 Nut
• Replace
• Tightening specifications and tightening sequence: left => [ Position left front exhaust manifold with
catalytic converter on cylinder head and tighten nuts by hand. ] 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 Nut
• Replace
• 23 Nm
4 Gasket
• Replace
5 Nut
• Replace
• Tightening specifications and tightening 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 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 Exhaust System Tract ] Left Exhaust System Tract, refer to => [ Right Exhaust System Tract ] Right Exhaust System Tract.
9 Oxygen Sensor 2 after Catalytic Converter (G131)
• For exhaust bank II (cylinder 4, 5)
10 Nut
• Replace
• 23 Nm
11 Gasket
• Replace
12 Front Muffler
• With flex joint
• Do not bend the flex joint more than 10° or it will get damaged.
• Removing and installing, refer to => [ Left Front Muffler ] Left Front Muffler, refer to => [ 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 get damaged.
• Removing and installing, refer to => [ Left Y-Pipe ] Left Y-Pipe, refer to => [ Right Y-Pipe ] Right Y-Pipe
• Install exhaust system free of stress. Refer to => [ Exhaust System, Installing ] Exhaust System, Installing
14 Nut
• Replace
• 23 Nm
15 Oxygen Sensor after Three Way Catalytic Converter (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 Exhaust System Tract ] Left Exhaust System Tract, refer to => [ 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)
Rear Exhaust System
1 Nut
• 23 Nm
2 Front Clamping Sleeve
• Installed location
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
3 Center Muffler
• Original equipment as one unit with rear muffler. For repairs, replace each separately.
• Separation points => [ 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
4 Nut
• 23 Nm
5 Rear Clamping Sleeve
• For individual replacement of center and rear mufflers
• Installed location
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
6 Clamping Piece
7 Retaining Loop
• Replace if damaged
8 Nut
• 23 Nm
9 Bolt
10 Rear Muffler
• With exhaust flap
• Exhaust flap vacuum reservoir, checking, refer to => [ Exhaust Flap Vacuum Diaphragm, Checking ] Testing and Inspection
• Original equipment as one unit with center muffler. For repairs, replace each separately.
• Separation points => [ 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
11 Retaining Loop
• Replace if damaged
12 Suspended Mount
• Replace if damaged
13 Nut
• 22 Nm
14 Exhaust Flap Vacuum Hose
• From exhaust flap valve
15 Nut
• Replace
• 23 Nm
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 outward.
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.