Chery T21 2014 Service Manual page 596

11 - SQR484F EXHAUST SYSTEM
1 - Exhaust Manifold Assembly Gasket
3 - Exhaust Manifold Heat Insulator
5 - Upstream Oxygen Sensor
7 - Downstream Oxygen Sensor
9 - Diamond Shaped Hanger Block
11 - Center Pipe Assembly
13 - Sphere Flange Grommet
15 - Muffler Assembly Heat Insulator II
17 - Muffler Assembly
Exhaust system is used to control the engine exhaust, reducing vehicle emissions by precatalytic converter
and main catalytic converter, and eliminating exhaust noise by muffler. When exhaust system discharges
exhaust gas, the oxygen sensor monitors oxygen content in the exhaust gas. The engine control module
adjusts the air-fuel ratio of flammable gas mixture to control vehicle emissions and achieve optimal fuel
economy according to feedback signals of the oxygen sensor and combining with other sensor signals.
Specifications
Torque Specifications
11
Exhaust Manifold Heat Insulator Fixing Bolt
Coupling Nut Between Exhaust Manifold Assembly
and Precatalytic Converter Assembly
Exhaust Manifold Assembly Fixing Nut
Coupling Nut Between Precatalytic Converter Upper
Body Assembly and Precatalytic Converter Lower
Body Assembly
Left Coupling Bolt Between Precatalytic Converter
Assembly Bracket and Cylinder Block
Right Coupling Bolt Between Precatalytic Converter
Assembly Bracket and Cylinder Block
Coupling Nut Between Precatalytic Converter Lower
Body Assembly and Main Catalytic Converter
Assembly
Upstream Oxygen Sensor
Downstream Oxygen Sensor
Coupling Nut Between Main Catalytic Converter
Assembly and Center Pipe Assembly
Coupling Spring Bolt Between Center Pipe Assembly
and Muffler Assembly
Muffler Assembly Left Hanger Block III Assembly
Fixing Bolt
Muffler Assembly Right Hanger Block III Assembly
Fixing Bolt
4
11–
Description
2 - Exhaust Manifold Assembly
4 - Precatalytic Converter Assembly Gasket
6 - Precatalytic Converter Assembly
8 - Gasket
10 - Main Catalytic Converter Assembly
12 - Spring Bolt
14 - Muffler Assembly Heat Insulator I
16 - Hanger Block III Assembly
Torque (N·m)
23 ± 2
50 ± 5
23 ± 2
50 ± 5
23 ± 2
50 ± 5
50 ± 5
40 - 60
40 - 60
50 ± 5
50 ± 5
50 ± 5
50 ± 5
Chery Automobile Co., Ltd.