Infiniti F50. Manual - part 286

RADIATOR

CO-13

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5.

Lift the air conditioner condenser up approximately 2 cm (0.79
in). 
Remove the clips from the right and left flange parts of the air
conditioner condenser. 

CAUTION:

To avoid putting a load on the air conditioner piping, be
careful not to lift too much.

6.

Lift up and remove the radiator.

CAUTION:

●

Do not damage or scratch radiator core when removing.

●

After removing the radiator, fix the air conditioner con-
denser on the vehicle side with a rope or similar means. This is to prevent a load being applied
to the air conditioner piping.

INSTALLATION

●

Install in the reverse order of removal.

●

Align ID marks to install clips of both right/left end of radiator core. Refer to radiator component illustration
on top page.

CHECKING RADIATOR CAP

1.

Pull the negative pressure valve to open it, and check that it
close completely when released.

●

Check that there is no dirt or damage on the valve seat of the
radiator cap negative-pressure valve. 

●

Check that there are no abnormalities in the opening and
closing conditions of the negative-pressure valve.

2.

Check radiator cap relief pressure.

●

When connecting the radiator cap to the radiator cap tester
adapter (SST) and radiator cap tester (Commercial service
tool). 

●

Replace the radiator cap if there is an abnormality in the neg-
ative-pressure valve, or if the open-valve pressure is outside
of the standard values.

CHECKING RADIATOR

Check radiator for mud or clogging. If necessary, clean radiator as follows.

●

Be careful not to bend or damage the radiator fins.

●

When radiator is cleaned without removal, remove all surrounding parts such as cooling fan shroud and
horns. Then tape the harness and connectors to prevent water from entering.

1.

Apply water by hose to the back side of the radiator core vertically down ward.

2.

Apply water again to all radiator core surfaces once per minute.

3.

Stop washing if any stains no longer flow out from the radiator.

4.

Blow air into the back side of radiator core vertically down ward.

●

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.

PBIC0955E

SMA967B

Standard

: 78 - 98 kPa (0.8 - 1.0 kg/cm

2

 , 11 - 14 psi)

Limit

: 59 kPa (0.6 kg/cm

2

 , 9 psi)

SLC755A

CO-14

RADIATOR (ALUMINUM TYPE)

RADIATOR (ALUMINUM TYPE)

PFP:21460

Disassembly and Assembly

EBS003P4

PREPARATION

1.

Attach the spacer to the tip of the radiator plate pliers A.
Spacer specification: 1.5 mm (0.059 in) thick x 18 mm (0.71 in)
wide x 8.5 mm (0.335 in) long.

2.

Make sure that when radiator plate pliers A are closed dimen-
sion H

′′

 is approx. 7.6 mm (0.299 in).

3.

Adjust dimension H

′′

 with the spacer, if necessary.

DISASSEMBLY

1.

Remove upper or lower tanks with SST.

SBIA0386E

SLC655CB

SLC903-A

RADIATOR (ALUMINUM TYPE)

CO-15

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●

Grip the crimped edge and bend it upwards so that SST slips
off.

Do not bend excessively.

●

In areas where Tool cannot be used, use a screwdriver to
bend the edge up.

Be careful not to damage tank.

2.

Remove sealing rubber.

3.

Make sure the edge stands straight up.

4.

Remove oil cooler from tank.

ASSEMBLY

1.

Install oil cooler.
Pay attention to direction of conical washer.

SLC893

SLC930

SLC931

SBIA0419E

CO-16

RADIATOR (ALUMINUM TYPE)

2.

Clean contact portion of tank.

3.

Install sealing rubber.
Push it in with fingers.
Be careful not to twist sealing rubber.

4.

Caulk tank in specified sequence with SST.

SLC932

SLC917A

SLC904-A

SLC896