Exhaust System Assembly Overview
Exhaust System Assembly Overview
• After exhaust system repairs, make sure exhaust system is not under stress and is far enough from the body. If necessary, loosen clamping sleeves and align mufflers and exhaust pipes so that there is adequate distance to vehicle body, and weight is evenly distributed among the exhaust hangers.
Primary catalytic converter and main catalytic converter
1 Main Catalytic Converter
• For right side of vehicle
• Protect from shocks and impact stress
• Removal and installation, refer to => [ Right Main Catalytic Converter ] Right Main Catalytic Converter
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
2 Gasket
• Replace
3 Nut
• Replace
• 23 Nm
4 Primary Catalytic Converter
• For right side of vehicle
• With flex joint
• Do not bend the flex joint more than 10° or it will get damaged.
• Protect from shocks and impact stress
• Removal and installation, refer to => [ Right Primary Catalytic Converter ] Right Primary Catalytic Converter
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
5 Gasket
• Replace
6 Exhaust Manifold
• For cylinder bank 1 (right)
• Removal and installation, refer to => [ Right Exhaust Manifold ] Right Exhaust Manifold
7 Nut
• Replace
• 23 Nm
8 Heated Oxygen Sensor (HO2S) (G39) (before catalytic converter)
• For cylinder bank 1 (right)
9 Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
• For cylinder bank 1 (right)
10 Nut
• Replace
• 23 Nm
11 Exhaust Manifold
• Cylinder bank 2 (left)
• Removal and installation, refer to => [ Left Exhaust Manifold ] Left Exhaust Manifold
12 Gasket
• Replace
13 Heated Oxygen Sensor (HO2S) 2 (G108) (in front of catalytic converter)
• For cylinder bank 2 (left)
14 Primary Catalytic Converter
• For left side of vehicle
• With flex joint
• Do not bend the flex joint more than 10° or it will get damaged.
• Protect from shocks and impact stress
• Removal and installation, refer to => [ Left Primary Catalytic Converter ] Left Primary Catalytic Converter
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
15 Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131)
• For cylinder bank 2 (left)
16 Nut
• Replace
• 23 Nm
17 Gasket
• Replace
18 Main Catalytic Converter
• For left side of vehicle
• Protect from shocks and impact stress
• Removal and installation, refer to => [ Left Main Catalytic Converter ] Left Main Catalytic Converter
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
19 Suspended Mount
• Replace if damaged
20 Bolt
• 23 Nm
21 Suspended Mount
• Replace if damaged
22 23 Nm
23 Suspended Mount
• Replace if damaged
24 Bolt
• 23 Nm
25 Suspended Mount
• Replace if damaged
26 Bolt
• 23 Nm
Center muffler and rear muffler
1 Bolt
• 23 Nm
2 Suspended Mount
• Replace if damaged
3 Nut
• 23 Nm
4 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.
5 Nut
• 23 Nm
6 Rear Clamping Sleeve
• For individual replacement of center and rear mufflers
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
7 Bolt
• 23 Nm
8 Suspended Mount
• Replace if damaged
9 Nut
• 23 Nm
10 Front Clamping Sleeve
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
11 Nut
• 23 Nm
12 Front Clamping Sleeve
• Before tightening, align exhaust system tension-free, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
• Tighten threaded connections evenly.
13 Center Muffler
• Original equipment as one unit with rear muffler. For repairs, replace each separately.
• Separating point => [ Separate exhaust pipe at separating point using at a right angle. ] Service and Repair
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
14 Suspended Mount
• Replace if damaged
15 Bolt
• 23 Nm
16 Suspended Mount
• Replace if damaged
17 Bolt
• 23 Nm
18 End Pipe
• For left side of vehicle
• Replacing, refer to => [ Tail Pipe ] Service and Repair.
19 Rear Muffler
• Original equipment as one unit with center muffler. For repairs, replace each separately.
• Separating point => [ Separate exhaust pipe at separating point using at a right angle. ] Service and Repair
• Install exhaust system free of stress, refer to => [ Exhaust System, Installing ] Exhaust System, Installing
20 End Pipe
• For left side of vehicle
• Replacing, refer to => [ Tail Pipe ] Service and Repair.
Installed Position of Front Double Clamps
- Install clamping sleeves so that bolts are on bottom.
• Ends of bolts point toward outside of vehicle.
Installed Position of Rear Double Clamps
- Install the left clamping sleeve so the bolts are at the left.
• Ends of bolts point down.
- Install right clamping sleeve so that bolts are at top.
• Ends of screws point toward right.
Individual Suspension Components, Left Side
1. Bracket
2. Screws - 23 Nm
3. Bolt - 23 Nm
Individual Components of Suspension, Right Side
1. Bolt - 23 Nm
2. Bolt - 23 Nm
3. Tab
Heat Shield - Tightening Specification
- Tighten bolts - arrows - to 9 Nm.