Geely Emgrand X7. Manual part — 144

2.8.8.4 Replacement of Thermostat

4G20/4G24engine :

Dismantlement Procedure

1. Disconnect the battery negative

electrode cable.

Refer

to

2.12.6.1 Battery Disconnection.

2. Refer to 2.8.8.1 Engine Coolant

Discharge and Filling to
discharge engine coolant.

3. Loosen the radiator pipe clamp

from the engine inlet pipe seat.

4. Disconnect the radiator outlet

pipe from the engine inlet pipe.

GC02-0094c

5. Dismantle the engine inlet seat

retaining nuts.

6. Dismantle the engine inlet seat.

GC02-0095c

7. Remove

the

thermostat

component from the water pump
housing.

Note: the thermostat and the seal
ring are integrated.

8. Clean contact surface between

the engine water inlet pipe joint
components and cylinder.

GC02-0096c

575

Installation Procedure:

1. Install the thermostat to the water

pump housing.

2. Install the inlet seat and tighten

the retaining nuts.

Torque: 8-10 N.m (Metric) 5.9-7.4
lb-ft (English system)

GC02-0097c

3. Connect the outlet pipe of the

radiator to the inlet pipe seat.

4. Tighten the radiator outlet pipe

clamp.

5. Fill the engine coolant.

6. Connect battery negative cable.

GC02-0094c

576

4G18engine

Dismantlement Procedure

Warning: Refer to "Warning on Maintenance of Cooling System" in "Warnings and
Precautions".

1. Discharge the engine coolant,

Refer to 2.8.8.1 Engine Coolant
Discharge and Filling

2. Loosen radiator water pipe clamp

from engine water intake pipe
joint assemblies.

NL02-0312b

3. Disconnect water outlet pipe of

radiator from engine water intake
pipe joint components.

NL02-0313b

4. Dismantle fixing nut from engine

water inlet pipe joint components
to cylinder block.

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577

5. Dismantle the engine water inlet

pipe joint components from the
cylinder.

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6. Dismantle thermostat from the

cylinder.

Note: the thermostat and the seal ring
are integrated.

7. Clean contact surface between

the engine water inlet pipe joint
components and cylinder.

NL02-0316b

Installation Procedure:

1. Install thermostat onto the

cylinder.

2. Install the engine water inlet pipe

joint components onto the
cylinder.

NL02-0317b

578