Chery Amulet Engine. Manual — part 13

——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.
——See “CAC480M Engine’s single port injection system” to know about the throttle valve.
The exhaust system of Engine 480M includes Exhaust Manifold, Heat Insulation Cover, Exhaust Hose,
Oxygen Sensor, Flexible Hose, Three-Way Catalyst Converter, Front Muffler, Rear Muffler.

Removal and assembly of the Intake Manifold Assembly and Front lifting Lug:

1. The Intake Manifold Assembly of the Carburetor Engine.

2. Description for the Intake Manifold Assembly of Engine 480M:

The Intake Manifold Assembly includes: Water Hose, Vacuum Fitting, Water Temperature Gauge Sensor,
and Electric Heater. The water hose fitting is connected to the water hose of the throttle valve body. The left
vacuum fitting is connected to the PCV valve, and the right vacuum fitting is connected to the absolute
pressure sensor. And the vacuum fitting from the intake manifold’s branch is applied on the entire brake
system, the water temperature sensor is connected to ECU.

Fig 103 composing of intake manifold assembly of carburetor engine

Vacuum fitting (for brake boost) Absolute pressure sensor connecting

pipe connector (connect to 3 way hose)

3/8” hexagonal cone plug screw

Drainage

connector

Intake manifold

Fig.104 Composing of intake manifold assemble of electric injection engine

Vacuum fitting (for brake boost)

Vacuum fitting (for PCV valve)

Absolute pressure sensor connecting pipe connector

Install water temperature
sensor here

Intake manifold

Drainage hose

connector

The intake manifold ‘s air may be preheated by the electrical heater as well as by coolant. As the coolant’s

temperature is lower than 60°, the electronic heater will be energized to facilitate the cold starting.

The electrical heater’s energizing or deenergizing is controlled by the intake preheating switch and relay.
The intake preheating switch is installed in the M22 bolt hole in the thermostat seat(with the hole

plugged by plug screw for carburetor engine).

The intake preheating switch’s operation parameters:

Switching off temperature: 63±4°
Switching on temperature: ≥52°
Operation voltage: 6—24V
Electrical heater parameters:…
Voltage: 15V
Initial current: ≤75A
Cold resistance: 0.2—0.4Ω
temperature after 12-second energizing: ＞60℃
temperature after 180-second energizing: ＞135℃

3.3 Removal and assembly for the intake manifold assembly and front lifting lug:

Removal:

——Loose and remove two M8 lock nuts from the right front
lifting lug.
——Remove the front lifting lug.
——Loose and remove the remaining four M8 lock nuts.
——Remove the intake manifold.
——Remove the intake manifold sealing gasket.
——Remove six studs with equal length using two M8 nuts.

Assembly:
——Apply lotite sealant 201 on the cylinder head bolt threads and
screw six studs into the cylinder head.
——Assemble the new sealing gasket onto the studs.
——Install the intake manifold assembly.
——Install the front lifting lug onto the right two studs.
——Finger screw in nuts and tighten to16-20Nm.

Fig. 105

Front lug

4. The removal and assembly for the exhaust manifold,
heat insulation cover and rear lifting lug:

Removal:
－Loose and remove the M12×25 allen screw, and
remove the rear lug .
－Loose and remove two M8×12 screw and remove the
heat insulation cover .
－Loose and remove 8 M8 lock nuts and washers.－
remove the exhaust manifold.
－ Remove the exhaust manifold sealing gasket. －
Remove eight M8 studs of same length.

Assembly:
－screw in 8 M8 studs of same length and tighten them
with two nuts.
－Assemble the new exhaust manifold sealing gasket.
－Install the exhaust manifold.
－Put the washers onto the studs and tighten lock nuts
with hands, tightening torque is 14-17Nm .
－Assemble the heat insulation cover and tighten two
bolts with hands ,tightening torque is 14-19Nm .
－install the rear lug and tighten allen screw with hands ,
tightening torque is 50-60Nm.





5. For oxygen sensor and 3 way catalyst Converter, See
“CAC480M Engine’s single port injection system”

Bolt

Insulating

cover

Exhaust
manifold

Fig.106

Flat washer
hexagonal nut

Water temp.
sensor

Sealing gasket

【16】 Positive Crankcase Ventilation（PCV）system of engine.

1. Description for PCV system of the Carburetor engine:

PCV system is a closed system.

The leaking air of piston from the Crankcase goes to the

cylinder head cover through the PCV hose. The exhaust gas enters
the intake manifold passing the 3-way pipe after throttled by the
absolute pressure pipe connector. The gas in the crankcase enter
the 3 -way pipe through the guide cover to ventilate the crankcase.

The PCV system includes oil baffle assembly, PCV

pipe—cylinder block, absolute pressure transmission hose
connector, 3-way connector, valve chamber cover, connecting hose,
ventilation hose. See the above for Removal and Assembly of oil
baffle assembly and valve chamber cover assembly.




2. Description for PCV system of 480M engine

2.1 Description of
PCV system.

The

PCV

system is a closed
system.

The leaking air

of piston goes to the
rear cylinder head
cover

from

the

Crankcase through
the PCV hose. PCV
valve is connected
to

the

intake

manifold. Meantime,
a Ф15 hose in the
front of the valve
chamber

cover

assembly

is

connected to the

guide cover and PCV valve by the 3-way connector
through a hose.

The PCV system includes oil baffle

assembly, PCV pipe——cylinder block,
PCV hose, PCV valve, 3-way connector,
valve chamber cover, connecting hose,
and ventilation hose.

Connection hose

3 way connector

Absolute pressure transmitting hose
connector in intake gas hose

PCV valve

3 way connector

C

o

n

n

e

c

t

to

g

u

id

e

c

o

v

er

Connect to cylinder cap
cover

C

o

n

n

e

c

t

to

in

ta

k

e

g

a

s

C

o

n

n

e

c

t

to

g

u

id

e

c

o

v

er

Connection hose

C

h

a

m

b

er

c

o

v

er

c

a

p

Clip

Fig. 107

Connection hose

Fig. 108