Nissan Murano Z51. Manual - part 351

WATER PUMP

CO-25

< REMOVAL AND INSTALLATION >

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• Check for badly rusted or corroded water pump body assembly.
• Check for rough operation due to excessive end play.
• If anything is found, replace 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-11, "Inspection"

.

• Start and warm up the engine. Visually check that there is no leakage of engine coolant.

SLC943A

CO-26

< REMOVAL AND INSTALLATION >

WATER INLET AND THERMOSTAT ASSEMBLY

WATER INLET AND THERMOSTAT ASSEMBLY

Exploded View

INFOID:0000000005518106

Removal and Installation

INFOID:0000000005518107

REMOVAL

1.

Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to 

CO-11, "Draining"

 and 

EM-90, "Setting"

.

CAUTION:

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

2.

Remove reservoir tank of radiator, and move it aside. Refer to 

CO-16, "Exploded View"

.

3.

Remove intake valve timing control solenoid valve (bank 2). Refer to

EM-57, "Exploded View"

.

4.

Disconnect radiator hose (lower) from water inlet and thermostat assembly.

5.

Remove water inlet and thermostat assembly (1).

CAUTION:

Never disassemble water inlet and thermostat assembly.
Replace them as a unit, if necessary.

INSTALLATION

Note the following, and install in the reverse order of removal.
• Be careful not to spill engine coolant over engine room. Use rag to absorb engine coolant.

1.

Gasket

2.

Water inlet and thermostat assembly

3.

Clamp

4.

Radiator hose (lower)

A.

To radiator

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA1688GB

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: Never loosen these screw

JPBIA0261ZZ

WATER INLET AND THERMOSTAT ASSEMBLY

CO-27

< REMOVAL AND INSTALLATION >

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Inspection

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INSPECTION AFTER REMOVAL

1.

Check valve seating condition at ordinary room temperatures. It should seat tightly.

2.

Check valve operation.

• If the malfunctioning condition, when valve seating at ordinary

room temperature, or measured values are out of the standard,
replace water inlet and thermostat assembly.

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-11, "Inspection"

.

• Start and warm up the engine. Visually check that there is no leakage of engine coolant.

Thermostat (Standard)

: Refer to 

CO-30, "Thermostat"

.

SLC949A

CO-28

< REMOVAL AND INSTALLATION >

WATER OUTLET AND WATER PIPING

WATER OUTLET AND WATER PIPING

Exploded View

INFOID:0000000005518109

Removal and Installation

INFOID:0000000005518110

REMOVAL

1.

Remove air duct (inlet), radiator core support covers (RH and LH), air cleaner cases (upper and lower)
with mass air flow sensor and air duct assembly. Refer to 

EM-31, "Exploded View"

.

2.

Remove engine cover. Refer to 

EM-29, "Exploded View"

.

3.

Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to 

CO-11, "Draining"

 and 

EM-90, "Setting"

.

CAUTION:

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

4.

Remove battery and battery tray. Refer to 

PG-119, "Removal and Installation"

.

1.

Heater hose

2.

Clamp

3.

Water hose

4.

Clamp

5.

Water outlet

6.

Gasket

7.

Gasket

8.

Water connector

9.

O-ring

10. Water bypass pipe

11.

Clamp

12.

Water hose

13. Heater pipe

14.

Water hose

15.

Heater hose

16. Engine coolant temperature sensor

17.

Clamp

18.

Radiator hose (upper)

A.

To heater core

B.

To electric throttle control actuator

C.

To oil cooler

D.

To radiator

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA1691GB