Nissan Pathfinder (2010 year). Manual - part 132
CO-54
< ON-VEHICLE REPAIR >
[VK56DE]
THERMOSTAT AND WATER PIPING
1. Check valve seating condition at ordinary room temperature. It should seat tightly.
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 the thermo-
stat.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not spill engine coolant in engine room. Use a rag to absorb engine coolant.
Installation of Thermostat
• Install the thermostat with the whole circumference of each flange
part fit securely inside the rubber ring as shown.
• Install the thermostat with the jiggle valve facing upwards.
Installation of Water Outlet Pipe and Heater Pipe
First apply a neutral detergent to the O-rings, then quickly insert the insertion parts of the water outlet pipe and
heater pipe into the installation holes.
INSPECTION AFTER INSTALLATION
• Check for leaks of engine coolant. Refer to
.
• Start and warm up the engine. Visually check for leaks of engine coolant.
SLC252B
Thermostat
Standard
Valve opening temperature
80 - 84
°
C (176 - 183
°
F)
Full-open lift amount
More than 10 mm/ 95
°
C (0.39 in/ 203
°
F)
Valve closing temperature
77
°
C (171
°
F) or higher
KBIA2502E
2010 Pathfinder