Nissan March K13. Instruction — part 62
CO-12
< PERIODIC MAINTENANCE >
[HR12DE]
RADIATOR
RADIATOR
RADIATOR CAP
RADIATOR CAP : Inspection
INFOID:0000000005988460
• Check valve seat (A) of radiator cap.
- Check that valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
- Check that valve seat has no soil and damage.
• Pull negative-pressure valve to open it, and that it close completely
when released.
- Check that there is no dirt or damage on the valve seat of radiator
cap negative-pressure valve.
- Check that there are no unusualness in the opening and closing
conditions of negative-pressure valve.
• Check radiator cap relief pressure.
- When connecting radiator cap to the radiator cap tester (commer-
cial service tool) (A) and the radiator cap tester adapter (commer-
cial service tool) (B), apply engine coolant to the cap seal surface.
• Replace radiator cap if there is an unusualness related to the above three.
CAUTION:
When installing radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
RADIATOR
RADIATOR : Inspection
INFOID:0000000005988461
Check radiator for mud or clogging. If necessary, clean radiator as follows.
CAUTION:
• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan
assembly and horns. Then tape harness and harness connectors to prevent water from entering.
1.
Apply water by hose to the back side of the radiator core vertically downward.
2.
Apply water again to all radiator core surfaces once per minute.
3.
Stop washing if any stains no longer flow out from radiator.
B : Metal plunger
JPBIA0108ZZ
SMA967B
Standard and Limit
: Refer to
PBIC5122J
RADIATOR
CO-13
< PERIODIC MAINTENANCE >
[HR12DE]
C
D
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4.
Blow air into the back side of radiator core vertically downward.
• Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm
2
, 71 psi) and keep distance more than 30 cm
(11.81 in).
5.
Blow air again into all the radiator core surfaces once per minute until no water sprays out.
CO-14
< REMOVAL AND INSTALLATION >
[HR12DE]
RADIATOR
REMOVAL AND INSTALLATION
RADIATOR
Exploded View
INFOID:0000000005988462
Removal and Installation
INFOID:0000000005988463
REMOVAL
WARNING:
• Never remove radiator cap when engine is hot. Serious burns may occur from high-pressure engine
coolant escaping from radiator.
• Wrap a thick cloth around the radiator cap. Slowly turn it a quarter of a turn to release built-up pres-
sure. Then turn it all the way.
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 air duct (inlet). Refer to
EM-24, "Removal and Installation"
1.
Reservoir tank cap
2.
Reservoir tank
3.
Reservoir tank hose
4.
Radiator cap
5.
Mounting rubber (upper)
6.
Radiator
7.
Mounting rubber (lower)
8.
Clamp
9.
A/T fluid hose
10. Clamp
11.
Radiator hose (upper)
12. Radiator hose (lower)
13. Fan shroud assembly
A.
To water outlet
B.
To water inlet
C.
M/T models
for symbols in the figure.
JPBIA3390GB
RADIATOR
CO-15
< REMOVAL AND INSTALLATION >
[HR12DE]
C
D
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F
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3.
Disconnect reservoir tank hose, and remove reservoir tank.
4.
Disconnect harness connector from fan motor, and move harness aside.
5.
Remove radiator hose (upper and lower).
6.
Remove cooling fan assembly.
CAUTION:
Be careful not to damage or scratch the radiator core.
7.
Remove front bumper fasica assembly. Refer to
EXT-11, "Removal and Installation"
.
8.
Remove radiator core support (upper). Refer to
DLK-114, "Removal and Installation"
(With Intelligent Key)
DLK-219, "Removal and Installation"
(Without Intelligent Key).
9.
Remove the radiator (1) from bottom of the vehicle.
CAUTION:
Be careful not to damage radiator core and condenser
assembly core.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
• Replace water hose clamp if it is removed.
• Use genuine mounting bolts for the cooling fan assembly and strictly observe the tightening torque.
(Breakage prevention for radiator)
NOTE:
• Insert the radiator hose (1) all the way to the stopper (2) or by 33 mm (1.30in) (hose without a stopper)
• For the orientation of the hose clamp pawl, refer to the figure.
*Refer to the illustrations for the specific position each hose clamp tab.
2
: Condenser assembly
: Vehicle front
JPBIA3425ZZ
Unit mm (in)
A.
Radiator side
B.
Engine side
JSBIA0238GB
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
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