Infiniti QX56 (Z62). Manual — part 238
CO-12
< PERIODIC MAINTENANCE >
RADIATOR
3.
Stop washing if any stains no longer flow out from radiator.
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
(11.8 in).
5.
Blow air again into all the radiator core surfaces once per minute until no water sprays out.
RADIATOR
CO-13
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
RADIATOR
Exploded View
INFOID:0000000006289663
Removal and Installation
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REMOVAL
WARNING:
Never remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from water inlet. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn
1.
Radiator cap
2.
Radiator
3.
Mounting rubber (upper)
4.
Mounting rubber (lower)
5.
Clamp
6.
Radiator hose (lower)
7.
O-ring
8.
Drain plug
9.
Fan shroud (lower)
10. Fan shroud (upper)
11.
Radiator hose (upper)
12. Mounting rubber (lower)
13. Reservoir tank hose
14. Reservoir tank
15. Reservoir tank hose
16. Clamp
17. Reservoir tank cap
A.
To radiator
B.
To water outlet
C.
To water inlet
Refer to
for symbols in the figure.
JPBIA3324GB
CO-14
< REMOVAL AND INSTALLATION >
RADIATOR
to release built-up pressure. Carefully remove radiator cap by turning it all the way. Note that the reser-
voir tank cap side is also under pressure.
1.
Remove front under cover with power tool. Refer to
.
2.
Remove engine cover. Refer to
3.
Drain engine coolant from radiator. Refer to
.
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belts.
4.
Remove radiator hose (lower).
5.
Remove fan shroud (lower). Refer to
6.
Move reservoir tank to the position without the hindrance for work.
7.
Remove radiator core support cover. Refer to
8.
Remove fan shroud (upper), refer to following.
a.
Remove EVAP hose mounting bolts and move harness to aside.
b.
Move air cleaner case to the position without the hindrance for work. Refer to
.
NOTE:
The air cleaner case connector is not required to be disconnected.
9.
Remove radiator grille. Refer to
.
10. Move condenser to the position without the hindrance for work with the following procedures. Refer to
• Remove mounting bolts and disconnect A/C piping from radiator.
• Remove air guide from radiator. Refer to
.
• Remove radiator mounting bolts.
11. Remove radiator hose (upper).
12. Remove radiator as per the following:
CAUTION:
Be careful not to damage radiator core.
• Lift up and pull the radiator (1) forward, and then remove the
mounting rubber (lower) (3) from the radiator core support (2).
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
• 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 (1.30 in) (hose without a stopper).
: Vehicle front
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RADIATOR
CO-15
< REMOVAL AND INSTALLATION >
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• For the orientation of the hose clamp pawl, refer to the figure.
*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
±
15
°
as shown in the figure.
• To install hose clamps (1), check that the dimension (A) from the
end of the paint mark (2) on the radiator hose to the hose clamp is
within the reference value.
Inspection
INFOID:0000000006289665
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. Visually check that there is no leakage of engine coolant.
Unit mm (in)
A.
Radiator side
B.
Engine side
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
Left side
D
E.
View E
f.
45
°
: Vehicle upper
: Vehicle front
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Dimension “A”
(
−
1) – (+1) mm
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