Nissan Qashqai (2007-2010). Manual — part 114
WATER PUMP
CO-39
< ON-VEHICLE REPAIR >
[MR20DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
WATER PUMP
Exploded View
INFOID:0000000000905161
Removal and Installation
INFOID:0000000000905162
REMOVAL
1.
Drain engine coolant from radiator. Refer to
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belts.
2.
Remove front fender protector (RH). Refer to
3.
Remove drive belt. Refer to
EM-143, "Removal and Installation"
4.
Remove water pump.
• Engine coolant will leak from cylinder block, so have a receptacle ready below.
CAUTION:
• Handle water pump vane so that it does not contact any other parts.
• Water pump cannot be disassemble and should replaced as a unit.
INSTALLATION
Install in the reverse order of removal.
Inspection
INFOID:0000000000905163
INSPECTION AFTER REMOVAL
• Visually check if there is no significant dirt or rusting on water
pump body and vane (A).
• Make sure that there is no looseness in vane shaft, and that it turns
smoothly when rotated by hand.
• Replace water pump, if necessary.
1.
Gasket
2.
Water pump
for symbols in the figure.
PBIC3921E
PBIC3313J
CO-40
< ON-VEHICLE REPAIR >
[MR20DE]
WATER PUMP
INSPECTION AFTER INSTALLATION
• Check that the reservoir tank cap is tightened.
• Check for leaks of engine coolant using the adapter and the reservoir tank cap tester [SST: — (M.S. 554-07).
• Start and warm up the engine. Visually make sure that there is no leaks of engine coolant.
THERMOSTAT
CO-41
< ON-VEHICLE REPAIR >
[MR20DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
THERMOSTAT
Exploded View
INFOID:0000000000905165
Removal and Installation
INFOID:0000000000905166
REMOVAL
1.
Drain engine coolant from radiator. Refer to
CAUTION:
• Perform this step when engine is cold.
• Never spill engine coolant on drive belt.
2.
Disconnect the battery cable from the negative terminal. Refer to
.
3.
Add paint mark, then disconnect radiator hose (lower) from water inlet. Refer to
4.
Remove water inlet and thermostat.
• Engine coolant will leak from cylinder block, so have a receptacle ready below.
5.
Remove thermostat housing with the following procedure:
a.
Remove water pump. Refer to
.
1.
Thermostat housing
2.
Clamp (CVT models)
3.
Water hose (CVT models)
4.
Heater thermostat (CVT models)
5.
Water hose (CVT models)
6.
Radiator hose (lower)
7.
Water inlet
8.
Thermostat
9.
Rubber ring
10. Gasket
A.
To CVT fluid cooler
B.
To radiator
C.
To oil cooler
D.
To reservoir tank
: Engine front
Refer to
for symbols in the figure.
JPBIA0315GB
CO-42
< ON-VEHICLE REPAIR >
[MR20DE]
THERMOSTAT
b.
Remove alternator. Refer to
CHG-29, "MR20DE MODELS : Exploded View"
c.
Disconnect water hoses.
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.
• Install thermostat (1) with jiggle valve (A) facing upwards.
Inspection
INFOID:0000000000905167
INSPECTION AFTER REMOVAL
WARNING:
Use a protector to prevent a burn during the work.
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.
Heater Thermostat (CVT models)
PBIC3315J
2
: Cylinder block
PBIC3548J
.
PBIC3314J
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