2006 INFINITI M35 Factory Service Manual

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Page 1425 of 5621

INFINITI M35 2006 Factory Service Manual CO-50
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RADIATOR (ALUMINUM TYPE)
Revision: 2006 January2006 M35/M45
4. Make sure that the rim is completely crimped down.
5. Make sure that there is no leakage. Refer to CO-50, "
INSPECTION

Page 1426 of 5621

INFINITI M35 2006 Factory Service Manual COOLING FAN
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Revision: 2006 January2006 M35/M45
COOLING FANPFP:21140
ComponentsNBS004RM
Removal and InstallationNBS004RN
REMOVAL
1. Remove engine room cover (RH

Page 1427 of 5621

INFINITI M35 2006 Factory Service Manual CO-52
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COOLING FAN
Revision: 2006 January2006 M35/M45
NOTE:
Cooling fans are controlled by cooling fan control module. For details. Refer to EC-1239, "
DTC P1217
ENGINE OVER T

Page 1428 of 5621

INFINITI M35 2006 Factory Service Manual WATER PUMP
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Revision: 2006 January2006 M35/M45
WAT E R PU M PPFP:21020
ComponentsNBS004RP
Refer to GI-11, "Components" for symbol marks in the figure.

Page 1429 of 5621

INFINITI M35 2006 Factory Service Manual CO-54
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WATER PUMP
Revision: 2006 January2006 M35/M45
INSPECTION AFTER REMOVAL
Visually check that there is no significant dirt or rusting on water
pump body and vane.
Make sure there is no loo

Page 1430 of 5621

INFINITI M35 2006 Factory Service Manual THERMOSTAT AND WATER CONTROL VALVE
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Revision: 2006 January2006 M35/M45
THERMOSTAT AND WATER CONTROL VALVEPFP:21200
ComponentsNBS004RR
Refer to GI-11, "Compo

Page 1431 of 5621

INFINITI M35 2006 Factory Service Manual CO-56
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THERMOSTAT AND WATER CONTROL VALVE
Revision: 2006 January2006 M35/M45
5. Disconnect water suction hose from water inlet.
6. Remove water inlet and thermostat.
CAUTION:
Do not disassembl

CO-56
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THERMOSTAT AND WATER CONTROL VALVE
Revision: 2006 January2006 M35/M45
5. Disconnect water suction hose from water inlet.
6. Remove water inlet and thermostat.
CAUTION:
Do not disassemble thermostat.
7. Remove intake manifolds (upper and lower). Refer to EM-179, "
INTAKE MANIFOLD" .
8. Disconnect radiator hose (upper) from thermostat housing.
9. Disconnect heater hoses from water outlet and heater pipe.
10. Remove thermostat housing, water outlet pipe, water connector, water control valve, water outlet and
heater pipe.
CAUTION:
Do not disassemble water control valve.
INSPECTION AFTER REMOVAL
Make sure that valves both in thermostat and water control valve are completely closing at normal tempar-
ature.
Place a thread so that it is caught in the valves of the thermostat
and water control valve. Immerse fully in a container filled with
water. Heat while stirring. (The example in the figure shows ther-
mostat.)
The valve opening temperature is the temperature at which the
valve opens and falls from the thread.
Continue heating. Check the maximum valve lift.
NOTE:
The maximum valve lift standard temperature for water control
valve is the reference value.
After checking the maximum valve lift, lower the water tempera-
ture and check the valve closing temperature.
Standard values:
If the malfunctioning condition, when closing valve at normal temperature, or measured values are out of
the standard, replace thermostat and/or water control valve.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Be careful not to spill engine coolant over engine room. Use rag to absorb engine coolant.
Thermostat and Water Control Valve
Install thermostat and water control valve with the whole circum-
ference of each flange part fit securely inside rubber ring. (The
example in the figure shows thermostat.)
SLC252B
Thermostat Water control valve
Valve opening temperature 80 - 84
C (176 - 183F) 93.5 - 96.5C (200 - 206F)
Maximum valve liftMore than 10 mm/ 95
C
(0.39 in/ 203
F)More than 8 mm/ 108
C
(0.315 in/ 226
F)
Valve closing temperature 77
C (171F) 90C (194F)
PBIC0157E

Page 1432 of 5621

INFINITI M35 2006 Factory Service Manual THERMOSTAT AND WATER CONTROL VALVE
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Install thermostat with jiggle valve facing upwards. (The position
deviation may be withi

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