Infiniti G35 (V35) Sedan. Manual — part 316
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< ON-VEHICLE MAINTENANCE >
RADIATOR
RADIATOR
RADIATOR CAP
RADIATOR CAP : Inspection
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• Check valve seat of radiator cap.
- Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
- Check if valve seat has no soil and damage.
• Pull negative-pressure valve to open it, and make sure that it close
completely when released.
- Make sure that there is no dirt or damage on the valve seat of radi-
ator cap negative-pressure valve.
- Make sure that there are no unusualness in the opening and clos-
ing conditions of negative-pressure valve.
• Check radiator cap relief pressure.
- When connecting radiator cap to the radiator cap tester and the
radiator cap tester adapter (commercial service tool) (A), 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 water outlet (front) filler neck to remove any
waxy residue or foreign material.
RADIATOR
RADIATOR : Inspection
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Check radiator for mud or clogging. If necessary, clean radiator as follows:
• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as radiator cooling fan assem-
bly and horns. Then tape harness and 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.
4.
Blow air into the back side of radiator core vertically downward.
A
: Valve seat
B
: Metal plunger
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SMA967B
Standard and limit
: Refer to
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RADIATOR
CO-13
< ON-VEHICLE MAINTENANCE >
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• Use compressed air lower than 490 kPa (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.
CO-14
< ON-VEHICLE REPAIR >
RADIATOR
ON-VEHICLE REPAIR
RADIATOR
Exploded View
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Removal and Installation
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1.
Upper mount bracket
2.
Mounting rubber (upper)
3.
Radiator & condenser assembly
4.
Condenser pipe assembly
5.
O-ring
6.
O-ring
7.
Clamp
8.
A/T fluid cooler hose (A/T models)
9.
A/T fluid cooler hose (A/T models)
10. Mounting rubber (lower)
11.
Clamp
12. Radiator hose (lower)
13. Radiator hose (Upper)
14. Water drain hose
15. Drain plug
16. O-ring
17. Radiator water inlet pipe
18. O-ring
19. O-ring
20. Air relief plug
21. Reservoir tank cap
22. Reservoir tank
23. Reservoir tank hose
24. Clamp
25. Reservoir tank hose
26. Grommet
27. Radiator cooling fan assembly
A.
To transmission
B.
To water inlet
C.
To water outlet
D.
Refer to
for symbol marks in the figure.
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RADIATOR
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< ON-VEHICLE REPAIR >
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REMOVAL
WARNING:
Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to
release built-up pressure. Carefully remove radiator cap by turning it all the way.
1.
Remove the following parts:
• Engine under cover with power tool.
• Engine cover: Refer to
• Air cleaner case (RH and LH): Refer to
.
• Reservoir tank: Refer to
.
• Radiator core support ornament, radiator core support center and horn: Refer to
.
• Hood lock: Refer to
DLK-190, "HOOD ASSEMBLY : Exploded View"
2.
Remove condenser pipe assembly. Refer to
HA-54, "Removal and Installation"
3.
Drain engine coolant from radiator. Refer to
.
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belts.
4.
Disconnect A/T fluid cooler hoses from radiator. (A/T models)
• Install blind plug to avoid leakage of A/T fluid.
5.
Remove radiator hoses (upper and lower) and reservoir tank hose.
CAUTION:
Be careful not to allow engine coolant to contact drive belts.
6.
Remove cooling fan assembly. Refer to
CAUTION:
Do not damage or scratch radiator & condenser assembly core when removing.
7.
Rotate two radiator upper mount brackets 90 degrees in direc-
tion as shown in the figure, and remove them.
8.
Remove radiator & condenser assembly as follows:
CAUTION:
Be careful not to damage radiator & condenser assembly core.
a.
Lift up and pull the radiator & condenser assembly (1) forward,
and then remove the mounting rubber (lower) (3) from the radia-
tor core support (2).
1
: Radiator upper mount bracket
A
: Turn 90
°
counterclockwise
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: Vehicle front
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