Lubrication Circuit ........................................................4
Oil Pressure Check......................................................5
Oil Pump ......................................................................5

REMOVAL AND INSTALLATION

.................................5

DISASSEMBLY AND ASSEMBLY

................................6

OIL PUMP INSPECTION

............................................6

REGULATOR VALVE INSPECTION

............................7

OIL FILTER

...............................................................7

Service Data and Specifications (SDS).......................7

OIL PRESSURE

........................................................7

REGULATOR VALVE

.................................................7

OIL PUMP

.................................................................7

ENGINE COOLING SYSTEM..........................................8

Precautions ..................................................................8

LIQUID GASKET APPLICATION PROCEDURE

............8

Preparation ..................................................................8

SPECIAL SERVICE TOOLS

........................................8

Cooling Circuit .............................................................9
System Check............................................................10

CHECKING COOLING SYSTEM HOSES

...................10

CHECKING RADIATOR

............................................10

CHECKING RADIATOR CAP

....................................10

CHECKING COOLING SYSTEM FOR LEAKS

............ 11

Water Pump ............................................................... 11

REMOVAL AND INSTALLATION

............................... 11

REMOVAL

............................................................... 11

INSPECTION

...........................................................13

INSTALLATION

........................................................13

Thermostat.................................................................15

REMOVAL AND INSTALLATION

...............................15

INSPECTION

...........................................................15

Water Control Valve...................................................16

REMOVAL AND INSTALLATION

...............................16

INSPECTION

...........................................................16

Radiator .....................................................................17

REMOVAL AND INSTALLATION

...............................17

Cooling Fan Control System .....................................18
Refilling Engine Coolant ............................................18
Radiator (Aluminum type)..........................................18

PREPARATION

.......................................................18

DISASSEMBLY

........................................................19

ASSEMBLY

.............................................................19

INSPECTION

...........................................................21

Overheating Cause Analysis .....................................22
Service Data and Specifications (SDS).....................23

THERMOSTAT

........................................................23

WATER CONTROL VALVE

.......................................23

RADIATOR

..............................................................23

IDX

Precautions

SUPPLEMENTAL RESTRAINT SYSTEM (SRS) “AIR BAG” AND “SEAT BELT
PRE-TENSIONER”

NHLC0036

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to NISSAN MODEL A33 is as follows (The compo-
sition varies according to optional equipment.):

For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), seat belt
pre-tensioners, a diagnosis sensor unit, crash zone sensor, warning lamp, wiring harness and spiral cable.

For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision), wiring
harness, warning lamp (one of components of air bags for a frontal collision).

Information necessary to service the system safely is included in the RS section of this Service Manual.

WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified with yellow harness connector (and with
yellow harness protector or yellow insulation tape before the harness connectors).

SEM164F

AEM080

LIQUID GASKET APPLICATION PROCEDURE

NHLC0001

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 Part No. 999MP-A7007
or equivalent.)

For oil pan, be sure liquid gasket diameter is 3.5 to 4.5 mm
(0.138 to 0.177 in) or 4.5 to 5.5 mm (0.177 to 0.217 in) as
specified.

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.

ENGINE LUBRICATION SYSTEM

Precautions

LC-2

Preparation

SPECIAL SERVICE TOOLS

NHLC0002

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

ST25051001
(J25695-1)
Oil pressure gauge

NT558

Measuring oil pressure
Maximum measuring range:
2,452 kPa (25 kg/cm

, 356 psi)

ST25052000
(J25695-2)
Hose

NT559

Adapting oil pressure gauge to upper oil pan

WS39930000
(

—

)

Tube pressure

NT052

Pressing the tube of liquid gasket

IDX

ENGINE LUBRICATION SYSTEM

Preparation

LC-3

Lubrication Circuit

NHLC0003

SLC036B

SLC320B

ENGINE LUBRICATION SYSTEM

Lubrication Circuit

LC-4

Content .. 542 543 544 545 ..