Qashqai J11. Engine cooling system — part 7
CO-98
< REMOVAL AND INSTALLATION >
[R9M]
COOLING FAN
COOLING FAN
Exploded View
INFOID:0000000010438949
for symbol marks in the figure.
Removal and Installation
INFOID:0000000010438950
REMOVAL
1.
Drain engine coolant from radiator. Refer to
CAUTION:
• Perform this step engine is cold.
• Never spill engine coolant on drive belt.
2.
Remove front bumper. Refer to
EXT-19, "Removal and Installation"
3.
Remove air inlet tube and air inlet hose. Refer to
EM-27, "Removal and Installation"
.
4.
Remove charge air cooler. Refer to
EM-27, "Removal and Installation"
5.
Disconnect harness connectors from cooling fan, and move harness to aside.
6.
Remove cooling fan assembly.
CAUTION:
Be careful not to damage or scratch on radiator core when removing.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Only use genuine parts for fan shroud mounting bolt and observe the specified torque (to prevent
radiator from being damaged).
NOTE:
Cooling fan is controlled by ECM. For details, Refer to
EC9-34, "COOLING FAN CONTROL : System Descrip-
.
1.
Fan shroud
2.
Fan motor
3.
Resistor
4.
Radiator
E1BIA1117GB
COOLING FAN
CO-99
< REMOVAL AND INSTALLATION >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Disassembly and Assembly
INFOID:0000000010438951
DISASSEMBLY
1.
Remove cooling fan mounting nut, and then remove the cooling fan.
2.
Remove fan motor.
ASSEMBLY
Note the following, and assemble in the reverse order of disassembly.
• Apply genuine high strength thread locking sealant on fan motor shaft.
Inspection
INFOID:0000000010438952
INSPECTION AFTER DISASSEMBLY
Cooling Fan
Inspect cooling fan for crack or unusual bend.
• If anything is found, replace cooling fan.
CO-100
< REMOVAL AND INSTALLATION >
[R9M]
WATER PUMP
WATER PUMP
Exploded View
INFOID:0000000010416542
for symbols in the figure.
Removal and Installation
INFOID:0000000010416543
REMOVAL
1.
Remove engine. Refer to
EM-431, "Removal and Installation"
.
2.
Remove water pump pulley.
3.
Remove water pump.
• Loosen mounting bolts in reverse order as shown in the figure.
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
1.
Water pump bolt
2.
Water pump
3.
O-ring
4.
Cylinder block
E1BIA0585GB
JPBIA0746ZZ
WATER PUMP
CO-101
< REMOVAL AND INSTALLATION >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
• Tighten mounting bolts in numerical order as shown in the figure.
• When inserting water pump end into cylinder block, apply a neutral
detergent to O-ring. Then insert it immediately.
Inspection
INFOID:0000000010416544
INSPECTION AFTER DISASSEMBLY
• Visually check if 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.
JPBIA0746ZZ
JPBIA0747ZZ
CO-102
< REMOVAL AND INSTALLATION >
[R9M]
THERMO PLUNGER UNIT
THERMO PLUNGER UNIT
Exploded View
INFOID:0000000010438953
for symbol marks in the figure.
Removal and Installation
INFOID:0000000010438954
REMOVAL
CAUTION:
Make sure that the engine is cool down before operating, in order to avoid hot coolant outflow, as the
electric pump is turned on even if the engine is off. On the other hand the pump is turned off when the
engine is on. In this case as the electric pump is working, the thermostat will have to stay open due to
high temperatures.
1.
Remove the battery negative cable.
2.
Lift the vehicle.
3.
Remove front fender protector (LH). Refer to
4.
Drain the engine coolant.
5.
Remove the ground cable bolt.
6.
Disconnect thermo plunger unit connector.
7.
Remove the thermo plunger connection caps.
8.
Remove the thermo plunger connection nuts using the appropriate tool.
9.
Remove the water hose from thermo plunger unit.
10. Remove the thermo plunger unit fixing bolts.
11. Remove the thermo plunger unit.
1.
Water hose
2.
Clamp
3.
Thermo plunger control unit
4.
Earth lead
5.
Bracket stay
6.
Water hose
7.
Water hose clip
E1BIA1144GB
THERMO PLUNGER UNIT
CO-103
< REMOVAL AND INSTALLATION >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
INSTALLATION
NOTE:
• Thermo plunger caps must be correctly installed after removal.
• The hoses must be fully pushed onto pipe before tightening the clamp.
• Clamp must be fixed 5mm MIN from end of hose.
Installation is basically the reverse order of the removal.
Thermo plunger bracket stay bolt: 10 N.m (1 kg-m, 7 ft-lb)
CO-104
< REMOVAL AND INSTALLATION >
[R9M]
WATER OUTLET
WATER OUTLET
Exploded View
INFOID:0000000010416539
for symbols in the figure.
Removal and Installation
INFOID:0000000010416540
REMOVAL
1.
Drain engine coolant from radiator. Refer to
.
CAUTION:
Perform this step when engine is cold.
2.
Remove battery. Refer to
PG-155, "Removal and Installation"
.
3.
Remove intake manifold. Refer to
EM-387, "Removal and Installation"
4.
Disconnect radiator hose (lower). Refer to
5.
Disconnect water hoses from water outlet.
6.
Remove water outlet and thermostat assembly.
7.
CAUTION:
The thermostat cannot be separated from the water outlet.
INSTALLATION
Install in the reverse order of removal.
1.
Water hose
2.
Water pump
3.
Cylinder block
4.
O-ring
5.
Water pump inlet pipe
6.
Water pump inlet pipe intermediate
7.
Water outlet
8.
Water pipe between water inlet
housing and water chamber
9.
O-ring
10. intake manifold
11.
Water hose between intake manifold
and water chamber
12.
Water valve
A.
To Radiator
B.
To reservoir tank
E1BIA0656GB
WATER OUTLET
CO-105
< REMOVAL AND INSTALLATION >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Inspection
INFOID:0000000010416541
INSPECTION AFTER REMOVAL
Water outlet and thermostat assembly
1.
Check valve seating condition at ordinary room temperatures. It should seat tightly.
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.
Standard:
CO-106
< SERVICE DATA AND SPECIFICATIONS (SDS)
[R9M]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Periodical Maintenance Specification
INFOID:0000000010416547
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit:
(Imp qt)
Radiator
INFOID:0000000010416548
Unit: kPa (bar, kg/cm
2
, psi)
Thermostat
INFOID:0000000010416549
Standard
Engine coolant capacity (With reservoir tank at “MAX” level)
M/T models
7.3 (6-3/8)
CVT models
7.9 (7)
Reservoir tank engine coolant capacity (At “MAX” level)
0.8 (3/4)
Reservoir tank cap relief pressure
140 (1.4, 1.4, 20)
Leakage testing pressure
140 (1.4, 1.4, 20)
Valve opening temperature
80 - 92
°
C (176 - 197
°
F)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст