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Infiniti I35 (A33). Manual - part 557

Oil Cooler

NHLC0037

REMOVAL AND INSTALLATION

NHLC0037S01

SLC440B

Drain engine oil and coolant.

Remove oil cooler.

Installation is in reverse order of removal.

Do not spill coolant on the drive belt.

Install oil cooler to oil pan aligning the protrusion of flange
as shown.

INSPECTION

NHLC0037S02

Oil Cooler

NHLC0037S0201

Check oil cooler for cracks.

Check oil cooler for clogging by blowing through coolant inlet.
If necessary, replace oil cooler assembly.

Relief Valve

NHLC0037S0202

Inspect relief valve for movement, cracks and breaks by pushing
the ball. If replacement is necessary, remove valve by prying it out
with a suitable tool. Install a new valve in place by tapping it.

IDX

ENGINE LUBRICATION SYSTEM

Oil Cooler

LC-9

Service Data and Specifications (SDS)

OIL PRESSURE

=NHLC0010

Engine speed

rpm

Approximate discharge pressure

kPa (kg/cm

, psi)

Idle speed

2,000

More than 98 (1.0, 14)

294 (3.0, 43)

REGULATOR VALVE

NHLC0011

Unit: mm (in)

Regulator valve to oil pump cover clearance

0.040 - 0.097 (0.0016 - 0.0038)

OIL PUMP

NHLC0012

Unit: mm (in)

Body to outer rotor radial clearance

0.114 - 0.260 (0.0045 - 0.0102)

Inner rotor to outer rotor tip clearance

Below 0.18 (0.0071)

Body to inner rotor axial clearance

0.030 - 0.070 (0.0012 - 0.0028)

Body to outer rotor axial clearance

0.050 - 0.110 (0.0020 - 0.0043)

Inner rotor to brazed portion of housing clearance

0.045 - 0.091 (0.0018 - 0.0036)

ENGINE LUBRICATION SYSTEM

Service Data and Specifications (SDS)

LC-10

SEM164F

AEM080

Precautions

LIQUID GASKET APPLICATION PROCEDURE

NHLC0013

Use a scraper to remove all traces of old liquid gasket from
mating surfaces and grooves. Also, completely clean any oil
from these areas.

Apply a continuous bead of liquid gasket to mating surfaces.
(Use Genuine RTV silicone sealant or equivalent. Refer to
GI-53.)

Be sure liquid gasket diameter is 2.3 to 3.3 mm (0.091 to 0.130
in).

Apply liquid gasket around the inner side of bolt holes (unless
otherwise specified).

Assembly should be done within 5 minutes after coating.

Wait at least 30 minutes before refilling engine oil and engine
coolant.

Preparation

SPECIAL SERVICE TOOLS

NHLC0014

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

WS39930000
(

—

)

Tube pressure

NT052

Pressing the tube of liquid gasket

EG17650301
(J33984-A)
Radiator cap tester
adapter

NT564

Adapting radiator cap tester to radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)

KV99103510
(

—

)

Radiator plate pliers A

NT224

Installing radiator upper and lower tanks

KV99103520
(

—

)

Radiator plate pliers B

NT225

Removing radiator upper and lower tanks

IDX

ENGINE COOLING SYSTEM

Precautions

LC-11

Cooling Circuit

NHLC0038

SLC520B

System Check

NHLC0016

WARNING:

Never remove the radiator cap when the engine is hot; serious
burns could be caused by high pressure fluid escaping from
the radiator.
Wrap a thick cloth around the cap and carefully remove it by
turning it a quarter turn to allow built-up pressure to escape
and then turn the cap all the way off.

CHECKING COOLING SYSTEM HOSES

NHLC0016S01

Check hoses for improper attachment, leaks, cracks, damage,
loose connections, chafing and deterioration.

CHECKING RADIATOR

NHLC0016S02

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 sur-
rounding parts such as cooling fan, radiator shroud and horns.
Then tape the harness and connectors to prevent water from
entering.

Apply water by hose to the back side of the radiator core ver-
tically downward.

ENGINE COOLING SYSTEM

Cooling Circuit

LC-12

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