Nissan Xterra. Instruction — part 178
WATER INLET AND THERMOSTAT ASSEMBLY
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2. Check valve operation.
• Place a thread so that it is caught in the valve of the thermo-
stat. Immerse fully in a container filled with water. Heat while
stirring.
• 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 is the reference
value.
• After checking the full-open lift amount, lower the water temperature and check the valve closing tem-
perature.
• If valve seating at measured values are out of standard range, replace water inlet and thermostat
assembly.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not spill engine coolant in engine room. Use a shop cloth to absorb engine coolant.
INSPECTION AFTER INSTALLATION
• Check for engine coolant leaks. Refer to
• Start and warm up engine. Visually check for coolant leaks. Repair as necessary.
• Check and adjust engine coolant level. Refer to
MA-12, "Fluids and Lubricants"
.
SLC949A
Thermostat
Standard
Valve opening temperature
Refer to
.
Full-open lift amount
Refer to
.
Valve closing temperature
Refer to
.
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WATER OUTLET AND WATER PIPING
WATER OUTLET AND WATER PIPING
Exploded View
INFOID:0000000009484592
Removal and Installation
INFOID:0000000009484593
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter
of a turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Drain engine coolant from radiator. Refer to
CO-11, "Changing Engine Coolant"
.
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.
2. Remove the intake manifold collector. Refer to
EM-25, "Removal and Installation"
.
3. Remove engine coolant temperature sensor as necessary.
CAUTION:
Be careful not to damage engine coolant temperature sensor.
4. Remove water outlet and gaskets, heater pipe, water bypass hoses and water pipe.
1.
Engine coolant temperature sensor
2.
Washer
3.
Water outlet
4.
Heater hose
5.
O-ring
6.
Water pipe
7.
Water hose
8.
Radiator hose (upper)
9.
Water hose
10. Water hose
11. Gasket
12. Heater pipe
13. Heater hose
14. Gasket
A.
From electric throttle control actuator
B.
To electric throttle control actuator
C.
To heater
D.
From heater
AWBIA1025GB
WATER OUTLET AND WATER PIPING
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CAUTION:
Do not reuse gaskets.
INSTALLATION
Installation is in the reverse order of removal, paying attention to the following.
• Securely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.
• When inserting water pipe into water outlet, apply mild soap to O-ring.
CAUTION:
Do not reuse O-ring.
INSPECTION AFTER INSTALLATION
• Check for engine coolant leaks. Refer to
• Start and warm up engine. Visually check for coolant leaks. Repair as necessary.
• Check and adjust engine coolant level. Refer to
MA-12, "Fluids and Lubricants"
.
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< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and Limit
INFOID:0000000009484594
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (US qt, Imp qt)
RADIATOR
Unit: kPa (kg/cm
2
, psi)
THERMOSTAT
Engine coolant capacity (With reservoir tank at “MAX” level)
10.2 (10-3/4, 9)
Reservoir cap relief pressure
Standard
98 - 118 (1.0 - 1.2, 14 - 17)
Testing pressure
157 (1.6, 23)
Valve opening temperature
80.5 - 83.5
°C (177 - 182°F)
Full-open lift amount
8.6 mm / 95
°C (0.339 in / 203°F)
Valve closing temperature
77
°C (171°F)
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