Chery Automobile Co., Ltd.
11 - SQR484F EXHAUST SYSTEM
11–4
11
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
1 - Exhaust Manifold Assembly Gasket 2 - Exhaust Manifold Assembly
3 - Exhaust Manifold Heat Insulator 4 - Precatalytic Converter Assembly Gasket
5 - Upstream Oxygen Sensor 6 - Precatalytic Converter Assembly
7 - Downstream Oxygen Sensor 8 - Gasket
9 - Diamond Shaped Hanger Block 10 - Main Catalytic Converter Assembly
11 - Center Pipe Assembly 12 - Spring Bolt
13 - Sphere Flange Grommet 14 - Muffler Assembly Heat Insulator I
15 - Muffler Assembly Heat Insulator II 16 - Hanger Block III Assembly
17 - Muffler Assembly
Description Torque (N·m)
Exhaust Manifold Heat Insulator Fixing Bolt 23 ± 2
Coupling Nut Between Exhaust Manifold Assembly
and Precatalytic Converter Assembly
50 ± 5
Exhaust Manifold Assembly Fixing Nut 23 ± 2
Coupling Nut Between Precatalytic Converter Upper
Body Assembly and Precatalytic Converter Lower
Body Assembly
50 ± 5
Left Coupling Bolt Between Precatalytic Converter
Assembly Bracket and Cylinder Block
23 ± 2
Right Coupling Bolt Between Precatalytic Converter
Assembly Bracket and Cylinder Block
50 ± 5
Coupling Nut Between Precatalytic Converter Lower
Body Assembly and Main Catalytic Converter
Assembly
50 ± 5
Upstream Oxygen Sensor 40 - 60
Downstream Oxygen Sensor 40 - 60
Coupling Nut Between Main Catalytic Converter
Assembly and Center Pipe Assembly
50 ± 5
Coupling Spring Bolt Between Center Pipe Assembly
and Muffler Assembly
50 ± 5
Muffler Assembly Left Hanger Block III Assembly
Fixing Bolt
50 ± 5
Muffler Assembly Right Hanger Block III Assembly
Fixing Bolt
50 ± 5
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