Nissan Qashqai J11. Manual — part 155
WATER PUMP
CO-23
< REMOVAL AND INSTALLATION >
[HRA2DDT]
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• Loosen mounting bolts in reverse order as shown in the figure.
• Engine coolant will leak from cylinder block, so have a recep-
tacle ready below.
CAUTION:
• Handle water pump vane so that it does not contact any
other parts.
• Water pump cannot be disassembled and should be
replaced as a unit.
INSTALLATION
Note the following, and install in the reverse order of removal.
Water pump
• Tighten mounting bolts in numerical order as shown in the figure.
CAUTION:
Do not re-use gasket.
Water pump pulley
CAUTION:
Never install mounting bolts (A) to oblong holes (B) of water
pump pulley (1).
Inspection
INFOID:0000000010416356
INSPECTION AFTER REMOVAL
• Check visually that there is no significant dirt or rusting on water
pump body and vane (A).
• Check that there is no looseness in vane shaft, and that it turns
smoothly when rotated by hand.
• Replace water pump, if necessary.
INSPECTION AFTER INSTALLATION
KBIA3393J
KBIA3393J
PBIC3809E
PBIC3808E
CO-24
< REMOVAL AND INSTALLATION >
[HRA2DDT]
WATER PUMP
• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the
radiator cap tester (commercial service tool). Refer to
.
• Start and warm up the engine. Check visually that there is no leakage of engine coolant.
THERMOSTAT
CO-25
< REMOVAL AND INSTALLATION >
[HRA2DDT]
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THERMOSTAT
Exploded View
INFOID:0000000010416357
for symbol marks in the figure.
Removal and Installation
INFOID:0000000010416358
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
CAUTION:
Perform this step when engine is cold.
2.
Remove intake manifold. Refer to
EM-25, "Removal and Installation"
3.
Disconnect water hose from water inlet.
4.
Disconnect water inlet connector.
5.
Remove thermostat and water inlet assembly.
• Engine coolant will leak from cylinder block, so have a receptacle ready below.
• NOTE:
Thermostat can not be separated from water inlet.
INSTALLATION
Note the following, and install in the reverse order of removal.
Thermostat
• Thermostat can not be separated from water inlet.
1.
Water inlet
2.
Water inlet gasket
3.
Cylinder block
E1BIA1118GB
CO-26
< REMOVAL AND INSTALLATION >
[HRA2DDT]
THERMOSTAT
Water inlet
•
CAUTION:
Do not reuse water inlet gasket.
Inspection
INFOID:0000000010416359
INSPECTION AFTER REMOVAL
Thermostat
• Place a thread (A) so that it is caught in the valves of thermostat
(1). Immerse fully in a container (B) 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 valve lift amount.
• After checking the maximum valve lift amount, lower the water
temperature and check the valve closing temperature.
• If out of the standard, replace thermostat.
INSPECTION AFTER INSTALLATION
• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the
radiator cap tester (commercial service tool). Refer to
.
• Start and warm up the engine. Check visually that there is no leakage of engine coolant.
.
PBIC3314J
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