Nissan Cube. Manual - part 152

CO-20

< REMOVAL AND INSTALLATION >

WATER PUMP

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the

radiator cap tester (commercial service tool). Refer to 

CO-8, "Inspection"

.

• Start and warm up the engine. Check visually that there is no leakage of engine coolant.

THERMOSTAT

CO-21

< REMOVAL AND INSTALLATION >

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THERMOSTAT

Exploded View

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Removal and Installation

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REMOVAL

1.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

. 

CAUTION:

Perform this step when engine is cold.

2.

Remove air duct (inlet) and resonator assembly. Refer to 

EM-24, "Exploded View"

.

3.

Add paint mark, then disconnect radiator hose (lower) from water inlet. Refer to 

CO-14, "Exploded View"

.

4.

Remove water inlet and thermostat.
• Engine coolant leakage from cylinder block, so have a receptacle ready below.

5.

Remove thermostat housing with the following procedure:

a.

Remove A/C compressor with A/C piping connected, and temporarily fasten it on vehicle with a rope.
Refer to 

HA-31, "Exploded View"

. 

b.

Remove water pump. Refer to 

CO-19, "Exploded View"

.

c.

Remove alternator. Refer to 

CHG-30, "Exploded View"

.

INSTALLATION

Note the following, and install in the reverse order of removal.

Thermostat 

1.

Gasket

2.

Thermostat housing

3.

Clamp

4.

Water hose

5.

Rubber ring

6.

Thermostat

7.

Water inlet

8.

Clamp

9.

Radiator hose (lower)

A.

CVT models

B.

To CVT fluid cooler

C.

To radiator

: Always replace after every disassembly.

: N·m (kg-m, ft-lb)

JPBIA2884GB

CO-22

< REMOVAL AND INSTALLATION >

THERMOSTAT

• Install thermostat with making rubber ring (1) groove fit to thermo-

stat flange (A) with the whole circumference. 

• Install thermostat (1) with jiggle valve (A) facing upwards. 

Inspection

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INSPECTION AFTER REMOVAL

Thermostat

• Place a thread (A) so that it is caught in the valves of thermostat

(1). Immerse fully in a container (B) filled with water. Heat while
stirring.

• The valve opening temperature is the temperature at which the

valve opens and falls from the thread.

• Continue heating. Check the full open valve lift amount.
• After checking the maximum valve lift amount, lower the water

temperature and check the valve closing temperature. 

• If out of the standard, replace thermostat.

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the

radiator cap tester (commercial service tool). Refer to 

CO-8, "Inspection"

.

• Start and warm up the engine. Check visually that there is no leakage of engine coolant.

PBIC3315J

2

: Thermostat housing

PBIC3548J

Standard: Refer to 

CO-25, "Thermostat"

.

PBIC3314J

WATER OUTLET

CO-23

< REMOVAL AND INSTALLATION >

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WATER OUTLET

Exploded View

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Removal and Installation

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REMOVAL

1.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

.

CAUTION:

• Perform this step when engine is cold.
• Never spill engine coolant on drive belt.

2.

Remove air duct (inlet) and resonator assembly and each air ducts. Refer to 

EM-24, "Exploded View"

.

3.

Disconnect radiator hose (upper). Refer to 

CO-14, "Exploded View"

.

1.

Engine coolant temperature sensor

2.

Washer

3.

Water hose

4.

Clamp

5.

Water hose

6.

Gasket

7.

Water control valve

8.

Rubber ring

9.

Clamp

10. Radiator hose (upper)

11.

Water hose

12.

Clamp

13. Clamp

14.

Heater hose

15.

Water outlet

16. Heater hose

A.

To heater

B.

To electric throttle control actuator

C.

To radiator

D.

CVT models

E.

To CVT fluid cooler

: Engine front

: Always replace after every disassembly.

: N·m (kg-m, ft-lb)

JPBIA2885GB