Nissan March K13. Instruction — part 64
CO-20
< REMOVAL AND INSTALLATION >
[HR12DE]
WATER PUMP
• 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
• 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.
PBIC3313J
THERMOSTAT
CO-21
< REMOVAL AND INSTALLATION >
[HR12DE]
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THERMOSTAT
Exploded View
INFOID:0000000005988472
Removal and Installation
INFOID:0000000005988473
REMOVAL
1.
Drain engine coolant from radiator. Refer to
.
CAUTION:
Perform this step when engine is cold.
2.
Remove air duct (inlet). Refer to
EM-24, "Removal and Installation"
3.
Disconnect radiator hose (lower) from water inlet. Refer to
CO-14, "Removal and Installation"
.
4.
Remove water inlet and thermostat.
• Engine coolant leakage from cylinder block, so have a receptacle ready below.
INSTALLATION
Note the following, and install in the reverse order of removal.
Thermostat
• Install thermostat with making rubber ring (1) groove fit to thermo-
stat flange (A) with the whole circumference.
1.
Water inlet
2.
Rubber ring
3.
Thermostat
A.
To radiator
Refer to
for symbols in the figure.
JPBIA3387GB
PBIC3315J
CO-22
< REMOVAL AND INSTALLATION >
[HR12DE]
THERMOSTAT
• Install thermostat (2) with jiggle valve (A) facing upwards.
Water Inlet
After installation, install oil level gauge guide (1) as shown in the fig-
ure.
Inspection
INFOID:0000000005988474
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.
1
: Cylinder block
PBIC3812E
2
: Water inlet
JPBIA3426GB
.
PBIC3314J
WATER OUTLET
CO-23
< REMOVAL AND INSTALLATION >
[HR12DE]
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WATER OUTLET
Exploded View
INFOID:0000000005988475
WITHOUT EGR CONTROL VALVE
JPBIA3465GB
1.
Gasket
2.
Engine coolant temperature sensor
3.
O-ring
4.
EGR control valve
5.
EGR temp sensor
6.
Water outlet
A.
To heater
B.
To radiator
: Engine front
Refer to
for symbols in the figure.
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