Infiniti QX56 (JA60). Manual - part 194

RADIATOR

CO-17

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12. Lift up and remove the radiator.

CAUTION:

Do not damage or scratch air conditioner condenser, A/T oil

cooler or radiator core when removing.

INSTALLATION

Installation is in the reverse order of removal.

INSPECTION AFTER INSTALLATION

• Check for leaks of engine coolant. Refer to 

CO-10, "Inspection"

.

• Start and warm up the engine. Visually check for leaks of the engine coolant and A/T fluid.

PBIC1536E

CO-18

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ENGINE COOLING FAN

ENGINE COOLING FAN

Exploded View

INFOID:0000000005149046

Crankshaft Driven Type

Removal and Installation (Crankshaft Driven Type)

INFOID:0000000005149047

REMOVAL

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

CO-11, "Changing Engine Coolant"

.

2. Remove the lower and upper radiator shrouds. Refer to 

CO-15, "Exploded View"

.

3. Remove the drive belt. Refer to 

EM-13, "Removal and Installation"

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4. Remove the cooling fan.
5. Remove the fan bracket, if necessary.

INSPECTION AFTER REMOVAL

Fan Coupling

• Inspect fan coupling for oil leakage and bimetal conditions. 

• If there are any unusual concerns, replace the fan coupling.

Fan Bracket

• Visually check that there is no significant looseness in the fan

bracket shaft, and that it turns smoothly by hand.

• If there are any unusual concerns, replace the fan bracket.

Cooling Fan Pulley

• Inspect cooling fan pulley.

• If there are any unusual concerns, replace the cooling fan pulley.

AWBIA0812GB

1.

Cooling fan

2.

Fan coupling

3.

Fan bracket

4.

Cooling fan pulley

A.

Front mark

Engine front

SLC072

WBIA0418E

ENGINE COOLING FAN

CO-19

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INSTALLATION

Installation is in the reverse order of removal.

• Install cooling fan with its front mark “F” facing front of engine.

INSPECTION AFTER INSTALLATION

• Check for leaks of the engine coolant. Refer to 

CO-10, "Inspection"

.

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

Removal and Installation (Motor Driven Type)

INFOID:0000000005149048

REMOVAL

1. Remove the front bumper fascia. Refer to 

EXT-13, "Removal and Installation"

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2. Disconnect the secondary hood release cable.
3. Disconnect harness connector (A) from fan motor.
4. Remove the bolt and remove the fan grille and motor assembly. 

INSTALLATION

Installation is in the reverse order of removal.

• Cooling fan is controlled by ECM. For details, refer to 

EC-36, "Description"

.

AWBIA0668ZZ

CO-20

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WATER PUMP

WATER PUMP

Exploded View

INFOID:0000000005149049

Removal and Installation

INFOID:0000000005149050

CAUTION:

• When removing water pump, be careful not to get engine coolant on drive belt.

• Water pump cannot be disassembled and should be replaced as a unit.

REMOVAL

1. Drain engine coolant from the radiator. Refer to 

CO-11, "Changing Engine Coolant"

.

CAUTION:

Perform when the engine is cold.

2. Remove the engine cooling fan (crankshaft driven type). Refer to 

CO-18, "Removal and Installation

(Crankshaft Driven Type)"

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3. Remove the water pump pulley.
4. Remove the water pump.

• Engine coolant will leak from the cylinder block, so have a receptacle ready below.

CAUTION:

Handle water pump vane so that it does not contact any other parts.

INSPECTION AFTER REMOVAL

• Visually check that there is no significant dirt or rust on the water

pump body and vane.

• Make sure there is no looseness in the vane shaft, and that it turns

smoothly when rotated by hand.

• Replace the water pump assembly, if necessary.

INSTALLATION

Installation is in the reverse order of removal.

• After installation bleed the air from the cooling system. Refer to 

CO-11, "Changing Engine Coolant"

.

1.

Gasket

2.

Water pump

3.

Water pump pulley

KBIA2543E

KBIA2552E