Nissan Frontier D40. Manual — part 198
WATER PUMP
CO-53
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5.
Installation of the remaining components is in the reverse order of removal.
• Refill engine coolant system. Refer to
CO-39, "Changing Engine Coolant"
.
• Apply liquid gasket to the thread of water drain plug (front).
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-22, "Recommended Chemical Prod-
• After starting engine, let idle for three minutes, then rev engine up to 3,000 rpm under no load to
purge air from the high-pressure chamber of chain tensioner. Engine may produce a rattling
noise. This indicates that air still remains in the chamber and is not a matter of concern.
INSPECTION AFTER INSTALLATION
• Check for leaks of engine coolant. Refer to
.
• Start and warm up engine. Visually check there are no leaks of engine coolant.
CO-54
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WATER INLET AND THERMOSTAT ASSEMBLY
WATER INLET AND THERMOSTAT ASSEMBLY
Exploded View
INFOID:0000000005276118
Removal and Installation
INFOID:0000000005276119
REMOVAL
1.
Remove the engine under cover. Refer to
EM-138, "Removal and Installation"
.
2.
Drain engine coolant from the radiator. Refer to
CO-39, "Changing Engine Coolant"
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.
3.
Remove air duct and resonator assembly and air cleaner case (upper). Refer to
.
4.
Remove the radiator hose (upper) from the radiator.
5.
Remove the coolant reservoir hose from the radiator.
6.
Remove the fan shroud (lower) and (upper). Refer to
7.
Disconnect radiator hose (lower) and oil cooler hose from water inlet and thermostat assembly.
8.
Remove water inlet and thermostat assembly.
CAUTION:
• Do not disassemble water inlet and thermostat assembly.
• Replace water inlet and thermostat assembly as a unit, if
necessary.
INSPECTION AFTER REMOVAL
1.
Check valve seating condition at ordinary room temperatures. It should seat tightly.
1.
Water inlet and thermostat assembly 2.
Gasket
PBIC2839E
SLC962AB
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.
• After checking the full-open lift amount, lower the water tem-
perature and check the valve closing temperature.
• If valve seating at ordinary room temperature, or measured values are out of standard, replace water inlet
and thermostat assembly.
INSTALLATION
Installation is in the reverse order of removal, paying attention to the following.
• Do not spill engine coolant in engine room. Use rag to absorb engine coolant.
INSPECTION AFTER INSTALLATION
• Check for leaks of engine coolant. Refer to
.
• Start and warm up engine. Visually check for leaks of engine coolant.
SLC949A
Thermostat
Standard
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)
CO-56
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WATER OUTLET AND WATER PIPING
WATER OUTLET AND WATER PIPING
Exploded View
INFOID:0000000005276120
Removal and Installation
INFOID:0000000005276121
REMOVAL
1.
Drain engine coolant from radiator. Refer to
CO-39, "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-140, "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, heater pipe, water bypass hoses and water pipe.
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 neutral detergent to O-ring.
INSPECTION AFTER INSTALLATION
• Check for leaks of engine coolant. Refer to
.
• Start and warm up engine. Visually check for leaks of engine coolant.
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
WBIA0615E
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