Chery SQR 7160 sedan. Manual — part 34

CAC Gasoline Engine Maintenance And Servicing Manual

54

2) The removal and installation of water pump
assembly
——The structure of water pump assembly
1—water pump case
2—water pump impeller
3—water pump gear
4—water pump bearing

5—water pump seal (ceramics—black lead)

Removal：

——Loosen and remove four bolts from the
front end of cylinder block
——Remove water pump assembly
——Remove sealing gasket of water pump

Installation：
——Install new sealing gasket of water
pump on the water pump
——Install the water pump assembly inside
the cylinder block and screw in four
retaining bolt by hand, then tighten to
7.0—10.0Nm.

Note: The water pump assembly may not be
serviced. When water seal or bearing is
damaged, the water pump assembly should
be replaced

Fig. 94

Tighten torque

Sealing plate

Fig. 95

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CAC Gasoline Engine Maintenance And Servicing Manual

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3) The removal and installation of thermostat seat with thermostat assembly

——Loosen three M6×40 bolts and remove them
——Remove thermostat seat with thermostat assembly
——Pry out spring clip by chisel or screwdriver








——Take out the thermostat













——Take out sealing gasket
——Remove sealing gasket of thermostat seat








Measure the opening temperature of thermostat in hot water.

Fig.96

Fig. 97

Fig. 98

Fig. 99

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Assembly:

——Clip the thermostat seat, and put the rubber seal ring into the thermostat hole.
——Install the thermostat(with spring outward)
——Install spring clip, ensure that the clip is clipped in the thermostat seat groove.
——Install the sealing gasket of the new thermostat seat on the thermostat assembly with a bolt.
——Install the thermostat together with thermostat assembly into the rear end hole of cylinder head. Finger

screw in 3 bolts and tighten to 9-12Nm.

——Tighten the hex head plug with the sealing gasket on . tightening torque is 38-42Nm.
——For the engine equipped with electrical heater ,install air intake preheating switch .tightening torque is

38-42Nm.

3. removal and assembly of the water temperature sensor.
Removal:
——Remove the water temperature sensor(at the exhaust side , under the rear lug).

Assembly:

——Before installation, apply the lotite sealant 243 onto the bolt threads .finger screw in and tighten to

7.0-10.0Nm .

【15】: The intake and exhaust system of the engine.
1. Description for the intake and exhaust system of carburetor engine.
The intake system of Carburetor Engine 478 and 480 includes: air filter, Intake hose, Guide cover, Carburetor,
Intake hose, Intake air preheating hose of Positive Crankcase Ventilation（PCV）, and so on.
——air filter type is 1GD129607G, and its basic parameters are as the following:
Filtering area: 100cm2 nominal air flow(L): 600±150
filtering efficiency: ≥99% filtering resistance: 2kPa

thermostat

Sealing gasket

Overflow pipe

Drainage pipe

Sealing gasket

Small recircula-

ting pipe

Plug screw

Spring clip

Sealing gasket

Tighten torque

Fig.100

Temperature seat assembly

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——The air filter is equipped with a intake air temperature controller. When the temperature is low, the hot air
intake valve controlled by the temperature controller will open and the hot air, flowing by the exhaust manifold,
will be directed into the air filter from the intake preheating hose to supply more hot air and facilitate the fuel
atomization during cold winter. As temperature is high , valve is shutted off and the hot air is not permitted to
enter the air filter.
——Carburetor(see Fuel System)

The exhaust system of the carburetor engine 478 and 480 includes Exhaust Manifold, Heat Insulation
Cover, Exhaust Hose, Front Muffler, Rear Muffler.

2. Description for the Exhaust System of Engine 2.480M:

The Intake System of Engine 480M includes: air filter, Intake Hose, Guide Cover, Throttle Valve, Intake
Manifold, Intake air preheating hose of Positive Crankcase Ventilation（PCV）and so on.
——Air filter type is 1GD 129 607G, and its basic parameters are as follows:

Filtering area: 100cm2 nominal air flow(L): 600±150
filtering efficiency: ≥99% filtering resistance: 2kPa

Fig. 101 intake and exhaust system arrangement of carburetor engine

Intake hose

guide cover

carburetor

Air filter

Intake preheat hose

exhaust manifold

intake manifold

Exhaust hose

engine

front sound absorber back sound absorber

Fig.102 intake and exhaust system schematic drawing of engine 480M

3 way catalyst

front sound absorber back sound absorber

flexible hose

Oxygen sensor

Exhaust hose

engine

Intake hose

Air filter

guide cover

throttle valve

Intake preheat hose

insulating
cover

cylinder

cap cover

intake manifold

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