Infiniti QX56 (JA60). Manual - part 195

 

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Infiniti QX56 (JA60). Manual - part 195

 

 

WATER PUMP

CO-21

< ON-VEHICLE REPAIR >

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INSPECTION AFTER INSTALLATION

• Check for leaks of engine coolant. Refer to 

CO-10, "Inspection"

.

• Start and warm up engine. Visually check for leaks of the engine coolant.

CO-22

< ON-VEHICLE REPAIR >

THERMOSTAT AND WATER PIPING

THERMOSTAT AND WATER PIPING

Exploded View

INFOID:0000000005149051

Removal and Installation

INFOID:0000000005149052

REMOVAL

Removal of Thermostat

1. Partially drain engine coolant from the radiator. Refer to 

CO-11, "Changing Engine Coolant"

.

CAUTION:

Perform when engine is cold.

2. Disconnect the water suction hose from the water inlet.
3. Remove the water inlet and thermostat.

Removal of Thermostat Housing, Water Outlet and Heater Pipe

1. Remove the intake manifold. Refer to 

EM-26, "Removal and Installation"

.

2. Remove the thermostat housing, water outlet and heater pipe.

Removal of Water Cut Valve

1. Partially drain engine coolant from the radiator. Refer to 

CO-11, "Changing Engine Coolant"

.

CAUTION:

1.

Heater pipe

2.

Gasket

3.

Water outlet

4.

Gasket

5.

O-ring

6.

O-ring

7.

Thermostat housing

8.

Rubber ring

9.

Thermostat

10.

Water inlet

11.

Water suction hose

12. Water suction pipe

13.

Gasket

14. Heater pipe

KBIA2501E

THERMOSTAT AND WATER PIPING

CO-23

< ON-VEHICLE REPAIR >

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Perform when the engine is cold.

2. Disconnect the water cut valve connector.
3. Disconnect the water hoses from the water cut valve.
4. Remove the water cut valve.

INSPECTION AFTER REMOVAL

• Place a thread so that it is caught in the valve of the thermostat.

Immerse fully in a container 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 lift amount.

• After checking the full-open lift amount, lower the water tempera-

ture and check the valve closing temperature.

Standard values:

INSTALLATION

Installation is in the reverse order of removal.

Installation of Thermostat 

• Install the thermostat with the whole circumference of each flange

part fit securely inside the rubber ring as shown. 

• Install the thermostat with the jiggle valve facing upwards. 

Installation of Water Outlet Pipe and Heater Pipe

First apply a neutral detergent to the O-rings, then quickly insert the insertion parts of the water outlet pipe and

heater pipe into the installation holes.

INSPECTION AFTER INSTALLATION

• Check for leaks of the engine coolant. Refer to 

CO-10, "Inspection"

.

• Start and warm up the engine. Visually check for leaks of the engine coolant.

SLC252B

                        Thermostat

Valve opening temperature

               80 - 84

°C (176 - 183° F)     

Full-open lift amount

              More than 10 mm/ 95

°C (0.39 in/ 203°F)

Valve closing temperature

                77

°C (171°F) or higher

KBIA2502E

CO-24

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Standard and Limit

INFOID:0000000005149053

ENGINE COOLANT CAPACITY (APPROXIMATE)

Unit:   (US qt, Imp qt)

THERMOSTAT

RADIATOR

Unit: kPa (kg/cm

2

, psi)

Engine coolant capacity with reservoir ("MAX" level)

14.4 (15 1/4, 12 5/8)

Valve opening temperature

80 - 84

°C (176 - 183°F)

Maximum valve lift

More than 10 mm/95

°C (0.39 in/203°F)

Valve closing temperature

77

°C (171°F) or higher

Reservoir cap relief pressure

Standard

95 - 125 (0.97- 1.28, 14 - 18)

Leakage test pressure

137 (1.4, 20)

 

 

 

 

 

 

 

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