Infiniti M45 (Y34). Manual — part 288
THERMOSTAT AND WATER CONTROL VALVE
CO-25
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INSPECTION AFTER REMOVAL
●
Place a thread so that it is caught in the valves of thermostat and
water control valve. Immerse fully in a container filled with water.
Heat while stirring. (The example in the figure shows the ther-
mostat.)
●
The valve opening temperature is the temperature at which the
valve opens and falls from the thread.
●
Continue heating. Check the full-open lift amount.
NOTE:
The full-open lift amount standard temperature for water control
valve is the reference value.
●
After checking the full-open lift amount, lower the water temper-
ature and check the valve closing temperature.
Standard values
INSTALLATION
Install in the reverse order of removal.
Installation of 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.)
●
Install thermostat with the jiggle-valve facing upwards. (The
position deviation may be within the range of
±
10 degrees.)
●
Install water control valve with the up-mark facing up and the
frame center part facing upwards. (The position deviation may
be within the range of
±
10 degrees.)
SLC252B
Thermostat
Water control valve
Valve opening temperature
80 - 84
°
C (176 - 183
°
F)
93.5 - 96.5
°
C (200 - 206
°
F)
Full-open lift amount
More 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 (171
°
F)
90
°
C (194
°
F)
PBIC0157E
PBIC0158E
CO-26
THERMOSTAT AND WATER CONTROL VALVE
Installation of Water Outlet Pipe and Heater Pipe
First apply a neutral detergent to O-rings, then quickly insert the insertion parts of water outlet pipe and heater
pipe into the installation holes.
INSPECTION AFTER INSTALLATION
●
Check for leaks of the engine coolant using the radiator cap tester adapter [SST: EG17650301 (J33984-
A)] and the radiator cap tester (commercial service tool). Refer to
CO-9, "CHECKING COOLING SYSTEM
.
●
Start and warm up engine. Visually make sure that there is no leaks of engine coolant.
SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Standard and Limit
ABS004RC
CAPACITY
THERMOSTAT
WATER CONTROL VALVE
RADIATOR
Unit: kPa (kg/cm
2
, psi)
Tightening Torque
ABS004RD
Unit: N·m (kg-m, ft-lb)
Unit: N·m (kg-m, in-lb)*
Engine coolant capacity (With reservoir tank at “MAX” level)
Approximately 9.8
(10-3/8 US qt, 8-5/8 Imp qt)
Reservoir tank engine coolant capacity (at “MAX” level)
0.8
(7/8 US qt, 3/4 lmp qt)
Cooling fan fluid capacity
777 m
(26.3 US floz, 27.4 Imp floz)
Valve opening temperature
80 - 84
°
C (176 - 183
°
F)
Valve lift
More than 10 mm/95
°
C (0.39 in/203
°
F)
Valve closing temperature
77
°
C (171
°
F)
Valve opening temperature
93.5 - 96.5
°
C (200 - 206
°
F)
Valve lift
More than 8 mm/108
°
C (0.315 in/226
°
F)
Valve closing temperature
90
°
C (194
°
F)
Cap relief pressure
Standard
78 - 98 (0.8 - 1.0, 11 - 14)
Limit
59 (0.6, 9)
Leakage test pressure
157 (1.6, 23)
Radiator mounting bracket
Radiator drain plug
Radiator coolant temperature sensor
Cooling fan shroud
Reservoir tank bracket
3.8 - 4.5 (0.39 - 0.46, 34 - 39)*
0.78 - 1.56 (0.08 - 0.16, 7 - 14)*
4.9 - 9.8 (0.5 - 1.0, 44 - 86)*
3.8 - 4.5 (0.39 - 0.46, 34 - 39)*
3.8 - 4.5 (0.39 - 0.46, 34 - 39)*
Fan
Cooling fan motor
Cooling fan fluid cooler
Fluid hose
Reservoir tank
7.8 - 11.8 (0.8 - 1.2, 70 - 104)*
3.9 - 4.9 (0.40 - 0.49, 35 - 43)*
3.0 - 3.9 (0.31 - 0.39, 27 - 34)*
14.7 - 17.7 (1.5 - 1.8, 11 - 13)
15.7 - 19.6 (1.6 - 1.9, 12 - 14)
Water pump pulley
Water pump
7.2 - 9.2 (0.73 - 0.94, 64 - 81)*
24.5 - 31.4 (2.5 - 3.2, 18 - 23)
Water inlet
Thermostat housing
Rear water outlet
Water connector
Water suction pipe
Heater pipe
16.7 - 22.6 (1.7 - 2.3, 13 - 16)
16.7 - 22.6 (1.7 - 2.3, 13 - 16)
16.7 - 22.6 (1.7 - 2.3, 13 - 16)
16.7 - 22.6 (1.7 - 2.3, 13 - 16)
16.7 - 22.6 (1.7 - 2.3, 13 - 16)
5.4 - 7.3 (0.55 - 0.75, 48 - 65)*
CO-28
SERVICE DATA AND SPECIFICATIONS (SDS)
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