Qashqai J11. Engine cooling system — part 2
RADIATOR
CO-17
< REMOVAL AND INSTALLATION >
[HRA2DDT]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
REMOVAL AND INSTALLATION
RADIATOR
Exploded View
INFOID:0000000010416347
for symbol marks in the figure.
Removal and Installation
INFOID:0000000010416348
REMOVAL
WARNING:
• Never remove reservoir tank cap when engine is hot. Serious burns may occur from high-pressure
engine coolant escaping from radiator.
• Wrap a thick cloth around the reservoir tank cap. Slowly turn it a quarter of a turn to release built-up
pressure. Then turn it all the way.
1.
Radiator core support
2.
Radiator hose (upper)
3.
Radiator hose (lower)
4.
Cooling fan assembly
5.
Clip
6.
Air guide (LH)
7.
Mounting rubber
8.
Radiator
9.
Air guide (Lower)
10. Air guide (RH)
11.
Intercooler
12. Radiator mounting bracket
13. Bolt
E1BIA1116GB
CO-18
< REMOVAL AND INSTALLATION >
[HRA2DDT]
RADIATOR
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
1.
Drain engine coolant from radiator. Refer to
CAUTION:
• Perform this step when the 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.
Separate condenser from radiator.
6.
Remove radiator hose (upper and lower).
7.
Disconnect harness connectors from cooling fan, and move harness aside.
8.
Remove radiator and cooling fan assembly.
CAUTION:
Be careful not to damage radiator core and condenser core.
NOTE:
In case of lower pin radiator is damaged, it can be repaired instead of replacing the radiator.
9.
Separate radiator from condenser.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Do not reuse O-rings.
Radiator
NOTE:
When installing radiator core support (upper), check that both upper and lower mounts of radiator are inserted
in the mounting holes of radiator core support (upper, lower).
CAUTION:
Use genuine mounting bolts for the cooling fan assembly and strictly observe the tightening torque.
(Breakage prevention for radiator)
Radiator hose
NOTE:
Insert the radiator hose (1) all the way to the stopper (2) or by 33 mm (1.30 in) (hose without a stopper).
• For the orientation of the hose clamp pawl, refer to the figure.
Unit: mm (in)
A.
Radiator side
B.
Engine side
JPBIA4294GB
RADIATOR
CO-19
< REMOVAL AND INSTALLATION >
[HRA2DDT]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
*: Refer to the illustrations for the specific position each hose clamp tab.
• The angle (b) created by the hose clamp pawl and the specified
line (A) must be within
±
30 as shown in the figure.
• To install hose clamps (1), check that the dimension (A) from the
end of the hose clamp on the radiator hose to the hose clamp is
within the reference value.
Inspection
INFOID:0000000010416349
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.
Radiator hose
Hose end
Paint mark
Position of hose clamp*
Radiator hose (upper)
Radiator side
Upper
A
Engine side
Upper
B
Radiator hose (lower)
Radiator side
Lower
C
Engine side
Upper
D
E.
View E
f.
45
°
g.
45
°
: Vehicle upper
JPBIA3911ZZ
JPBIA4295ZZ
Dimension “A”
: 3 mm (0.12 in)
JSBIA0241ZZ
CO-20
< REMOVAL AND INSTALLATION >
[HRA2DDT]
COOLING FAN
COOLING FAN
Exploded View
INFOID:0000000010416350
for symbol marks in the figure.
Removal and Installation
INFOID:0000000010416351
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
ECH-31, "COOLING FAN CONTROL : System Descrip-
.
1.
Fan shroud
2.
Fan motor
3.
Resistor
4.
Radiator
E1BIA1117GB
COOLING FAN
CO-21
< REMOVAL AND INSTALLATION >
[HRA2DDT]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Disassembly and Assembly
INFOID:0000000010416352
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:0000000010416353
INSPECTION AFTER DISASSEMBLY
Cooling Fan
Inspect cooling fan for crack or unusual bend.
• If anything is found, replace cooling fan.
C O - 2 2
< REMOVAL AND INSTALLATION >
[HRA2DDT]
WATER PUMP
WATER PUMP
Exploded View
INFOID:0000000010416354
for symbol marks in the figure.
Removal and Installation
INFOID:0000000010416355
REMOVAL
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
1.
Drain engine coolant from radiator. Refer to
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.
2.
Steer front wheel to the right.
3.
Remove front fender protector (RH). Refer to
EXT-32, "Removal and Installation"
4.
Loosen mounting bolts of water pump pulley before loosening belt tension of drive belt.
5.
Remove drive belt. Refer to
EM-21, "Removal and Installation"
.
6.
Remove water pump pulley.
7.
Remove water pump.
1.
Water pump pulley
2.
Water pump
3.
Gasket
4.
Cylinder block
E1BIA1119GB
WATER PUMP
CO-23
< REMOVAL AND INSTALLATION >
[HRA2DDT]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
• 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]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
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
WATER OUTLET
CO-27
< REMOVAL AND INSTALLATION >
[HRA2DDT]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
WATER OUTLET
Exploded View
INFOID:0000000010416360
for symbol marks in the figure.
Removal and Installation
INFOID:0000000010416361
REMOVAL
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
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.
Disconnect vacuum hose from water outlet valve.
4.
Disconnect harness connector from engine coolant temperature sensor.
5.
Disconnect water hose from water outlet.
1.
Water outlet
2.
Gasket
3.
Cylinder head
E1BIA1120GB
CO-28
< REMOVAL AND INSTALLATION >
[HRA2DDT]
WATER OUTLET
6.
Remove water outlet.
• 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.
7.
Remove engine coolant temperature sensor from water outlet, if
necessary.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Do not re-use gasket
• Tighten mounting bolts in numerical order as shown in the figure.
E1BIA1142ZZ
E1BIA1142ZZ
SERVICE DATA AND SPECIFICATIONS (SDS)
CO-29
< SERVICE DATA AND SPECIFICATIONS (SDS)
[HRA2DDT]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Periodical Maintenance Specification
INFOID:0000000010416362
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit:
(Imp qt)
Radiator
INFOID:0000000010416363
Unit: kPa (bar, kg/cm
2
, psi)
Thermostat
INFOID:0000000010416364
Standard
Engine coolant capacity (With reservoir tank at “MAX” level)
6.5 (5-3/4)
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
77 - 80
°
C (170 - 176
°
F)
Valve full opening temperature
90
°
C (194
°
F)
CO-30
< PRECAUTION >
[MR20DD]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000010665065
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.
WARNING:
Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precautions for Removing Battery Terminal
INFOID:0000000010665066
• When removing the 12V battery terminal, turn OFF the ignition
switch and wait at least 30 seconds.
NOTE:
ECU may be active for several tens of seconds after the ignition
switch is turned OFF. If the battery terminal is removed before ECU
stops, then a DTC detection error or ECU data corruption may
occur.
• For vehicles with the 2-batteries, be sure to connect the main bat-
tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be
detected.
• After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.
NOTE:
The removal of 12V battery may cause a DTC detection error.
SEF289H
PREPARATION
CO-31
< PREPARATION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
PREPARATION
PREPARATION
Commercial Service Tools
INFOID:0000000010665067
Lubricant or/and Sealant
INFOID:0000000010665068
Tool name
Description
Radiator cap tester
Checking radiator and radiator cap
Radiator cap tester adapter
Adapting radiator cap tester to radiator cap
and water outlet (front) filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
PBIC1982E
S-NT564
Name
Description
Note
Three bond 1303
Cooling fan
Fan moter shaft
CO-32
< SYSTEM DESCRIPTION >
[MR20DD]
DESCRIPTION
SYSTEM DESCRIPTION
DESCRIPTION
Engine Cooling System
INFOID:0000000010665069
CVT models
JPBIA6908ZZ
Electric control throttle actuator
Water pump
Thermostat
Water inlet
Oil cooler
Water control valve
Water outlet
From radiator
To CVT oil warmer
To radiator
From CVT oil warmer
From heater
To heater
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст