Infiniti FX35 / FX45. Manual - part 274

CO-26

< SERVICE INFORMATION >

[VQ35DE]

WATER PUMP

b.

Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to mating surface of chain tensioner
cover and water pump cover.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-44, "Recommended Chemical Product and Sealant"

.

CAUTION:

Attaching should be done within 5 minutes after coating.

c.

Tighten mounting bolts.

5.

Install water drain plug (front) on water pump side of cylinder block.
• Apply liquid gasket to the thread of water drain plug (front).

Use Genuine RTV Silicone Sealant or equivalent. Refer to 

GI-44, "Recommended Chemical Prod-

uct and Sealant"

.

6.

Install in the reverse order of removal for remaining parts.
• After starting engine, let idle for three minutes, then rev engine up to 3,000 rpm under no load to

purge air from the high-pressure chamber of chain tensioner. Engine may produce a rattling
noise. This indicates that air still remains in the chamber and is not a matter of concern.

INSPECTION AFTER INSTALLATION

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

radiator cap tester (commercial service tool). Refer to 

CO-10, "Inspection"

.

• Start and warm up the engine. Visually make sure that there is no leaks of engine coolant.

PBIC2663E

WATER INLET AND THERMOSTAT ASSEMBLY

CO-27

< SERVICE INFORMATION >

[VQ35DE]

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WATER INLET AND THERMOSTAT ASSEMBLY

Component

INFOID:0000000001325858

• Refer to 

GI-8, "Component"

 for symbols in the figure.

Removal and Installation

INFOID:0000000001325859

REMOVAL

1.

Remove front engine undercover using power tool.

2.

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-10, "Changing Engine Coolant"

 and 

CO-22, "Component"

.

CAUTION:

• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belts.

3.

Remove air duct (inlet). Refer to 

EM-17, "Component"

.

4.

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

5.

Remove water inlet and thermostat assembly.

CAUTION:

Do not disassemble water inlet and thermostat assembly.
Replace them as a unit, if necessary.

INSPECTION AFTER REMOVAL

1.

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

1.

Water inlet and thermostat assembly 2.

Gasket

PBIC5002E

SLC962AB

CO-28

< SERVICE INFORMATION >

[VQ35DE]

WATER INLET AND THERMOSTAT ASSEMBLY

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.

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.

INSPECTION AFTER INSTALLATION

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

radiator cap tester (commercial service tool). Refer to 

CO-10, "Inspection"

.

• Start and warm up the engine. Visually make sure that there is no leaks of engine coolant.

Thermostat

Valve opening temperature

76 - 79

°

C (169 - 174

°

F)

Maximum valve lift

8.6 mm/90

°

C (0.339 in/194

°

F)

Valve closing temperature

71 

°

C (160 

°

F)

SLC949A

WATER OUTLET AND WATER PIPING

CO-29

< SERVICE INFORMATION >

[VQ35DE]

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WATER OUTLET AND WATER PIPING

Component

INFOID:0000000001325860

Removal and Installation

INFOID:0000000001325861

REMOVAL

1.

Remove front engine undercover with power tool.

2.

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-10, "Changing Engine Coolant"

 and 

CO-22, "Component"

.

CAUTION:

• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belts.

3.

Remove engine cover with power tool. Refer to 

EM-19, "Component"

.

4.

Remove air duct (inlet), air duct and air cleaner case assembly. Refer to 

EM-17, "Component"

.

5.

Remove radiator hose (upper) and heater hose.

6.

Remove the following parts, when remove water outlet.
• A/T fluid charging pipe: Refer to 

AT-241, "Removal and Installation (2WD Models)"

.

• Intake manifold collectors (upper and lower). Refer to 

EM-19, "Component"

.

• Rocker cover (right bank). Refer to 

EM-51, "Component"

.

7.

Remove engine coolant temperature sensor as necessary.

CAUTION:

Be careful not to damage engine coolant temperature sensor.

8.

Remove water outlet, heater pipe, water bypass hoses and water pipe.

INSTALLATION

1.

Harness bracket

2.

Water hose

3.

Water bypass hose

4.

Engine coolant temperature sensor

5.

Gasket

6.

Water outlet

7.

Heater hose

8.

Water pipe

9.

Radiator hose (upper)

10. Heater pipe

11.

Washer

12.

O-ring

SBIA0484E