Infiniti QX56 (JA60). Manual — part 194
RADIATOR
CO-17
< ON-VEHICLE REPAIR >
C
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F
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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
• 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
.
3. Remove the drive belt. Refer to
EM-13, "Removal and Installation"
.
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
< ON-VEHICLE REPAIR >
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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
• 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"
.
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
.
AWBIA0668ZZ
CO-20
< ON-VEHICLE REPAIR >
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
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
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