1998 NISSAN PICK-UP engine

HEL409A
HARNESS LAYOUT
Engine Room Harness (Cont'd)
EL-239

Engine Control Harness
HEL866
HARNESS LAYOUT
EL-240

HEL867
HARNESS LAYOUT
Engine Control Harness (Cont'd)
EL-241

Engine Harness
KA ENGINE
HEL870
HARNESS LAYOUT
EL-242

TD ENGINE
HEL410A
HARNESS LAYOUT
Engine Harness (Cont'd)
EL-243

Use the chart below to find out what each wiring diagram code
stands for.
Refer to the wiring diagram code in the alphabetical index to find
the location (page number) of each wiring diagram.
Code Section Wiring Diagram Name
AAC/V EC IACV-AAC Valve
ABS BR Anti-lock Brake System
A/C, M HA Manual Air Conditioner
AUDIO EL Audio
BACK/L EL Back-up Lamp
BUZZER EL Warning Buzzer
CHARGE EL Charging System
CHOKE EC Automatic Choke
CIGAR EL Cigarette Lighter
CLOCK EL Clock
CMPS EC Camshaft Position Sensor
COOL/F LC Cooling Fan Control
DEF EL Rear Window Defogger
DIMDIP ELHeadlamp Ð With Dim-dip Lamp
System
D/LOCK EL Power Door Lock
DTRL ELHeadlamp Ð With Daytime Light
System
ECTS ECEngine Coolant Temperature
Sensor
EGRC/V EC EGRC Ð Solenoid Valve
FCUT EC Fuel Cut Solenoid Valve
F/HEAT EC Fuel Heater System
FICD EC IACV-FICD Solenoid Valve
FIPOT EC ISC-FI Pot
FPCM EC Fuel Pump Control Module
F/PUMP EC Fuel Pump
F/RTN EC Fuel Return Control Solenoid Valve
GLOW EC Quick-glow System
H/AIM EL Headlamp Aiming Control
HEATER HA Heater
H/LAMP EL Headlamp
HLC EL Headlamp Washer
HO2S EC Heated Oxygen Sensor
HORN EL Horn
H/SEAT EL Heated Seat
IATS EC Intake Air Temperature Sensor
IDLE EC IACV-Idle Up ControlCode Section Wiring Diagram Name
IGN EC Ignition System
IGN/SG EC Ignition Signal
ILL EL Illumination
INJECT EC Injector
INT/L EL Interior and Spot Lamps
MAFS EC Mass Air Flow Sensor
MAIN ECMain Power Supply and Ground Cir-
cuit
METER ELSpeedometer, Tachometer, Temp.
and Fuel Gauges
MIL/DL ECMIL and Data Link Connector For
CONSULT
MIRROR EL Power Door Mirror
MULTI EL Multi-remote Control System
NATS EL Nissan Anti-theft System
P/ANT EL Power Antenna
PGC/V ECCanister Purge
Control Solenoid Valve
PLA EC Partial Load Advance Control
PNP/SW EC Park/Neutral Position Switch
POWER EL Power Supply Routing
PST/SW EC Power Steering Oil Pressure Switch
R/FOG EL Rear Fog Lamp
SRS RS Supplemental Restraint System
S/SIG EC Start Signal
START EL Starting System
STOP/L EL Stop Lamp
SWL/V ECSwirl Control Valve Control Solenoid
Valve
TAIL/L EL Parking, License and Tail Lamps
TPS EC Throttle Position Sensor
TURN ELTurn Signal and Hazard Warning
Lamps
VSS EC Vehicle Speed Sensor
WARN EL Warning Lamps
WINDOW EL Power Window
WIPER EL Front Wiper and Washer
WIRING DIAGRAM CODES (CELL CODES)
EL-253

ENGINE MECHANICAL
SECTION
EM
CONTENTS
PRECAUTIONS......................................................... 1
Parts Requiring Angular Tightening....................... 1
Liquid Gasket Application Procedure .................... 1
PREPARATION......................................................... 2
Special Service Tools ............................................ 2
Commercial Service Tools ..................................... 7
KA
OUTER COMPONENT PARTS................................. 9
COMPRESSION PRESSURE.................................. 10
Measurement of Compression Pressure ............. 10
OIL PAN................................................................... 11
Removal ............................................................... 11
Installation ............................................................ 12
TIMING CHAIN........................................................ 13
Removal ............................................................... 13
Inspection ............................................................. 17
Installation ............................................................ 17
OIL SEAL REPLACEMENT.................................... 22
Valve Oil Seal ...................................................... 22
Front Oil Seal ....................................................... 22
Rear Oil Seal ....................................................... 23
CYLINDER HEAD.................................................... 24
Removal ............................................................... 25
Disassembly ......................................................... 27
Inspection ............................................................. 27
Assembly.............................................................. 33
Installation ............................................................ 34
ENGINE REMOVAL................................................. 36
Removal ............................................................... 37
Installation ............................................................ 37
CYLINDER BLOCK................................................. 38Disassembly ......................................................... 39
Inspection ............................................................. 39
Assembly.............................................................. 45
TD
OUTER COMPONENT PARTS............................... 49
COMPRESSION PRESSURE.................................. 51
Measurement of Compression Pressure ............. 51
OIL PAN................................................................... 52
Removal ............................................................... 52
Installation ............................................................ 52
CYLINDER HEAD.................................................... 53
Removal ............................................................... 54
Disassembly ......................................................... 55
Inspection ............................................................. 56
Assembly.............................................................. 62
Installation ............................................................ 63
OIL SEAL REPLACEMENT.................................... 67
ENGINE REMOVAL................................................. 69
Removal ............................................................... 70
Installation ............................................................ 70
ENGINE OVERHAUL.............................................. 71
Disassembly ......................................................... 72
Inspection and Replacement ............................... 74
Assembly.............................................................. 86
KA
SERVICE DATA AND SPECIFICATIONS (SDS)... 91
General Specifications ......................................... 91
Inspection and Adjustment .................................. 91
EM

Parts Requiring Angular Tightening
lUse an angle wrench for the final tightening of the following
engine parts:
(1) Cylinder head bolts
(2) Connecting rod cap nuts for gasoline engines
lDo not use a torque value for final tightening.
lThe torque value for these parts are for a preliminary step.
lEnsure thread and seat surfaces are clean and coated with
engine oil.
Liquid Gasket Application Procedure
a. Use a scraper to remove all traces of old liquid gasket
from mating surfaces and grooves. Also, completely
clean any oil from these areas.
b. Apply a continuous bead of liquid gasket to mating sur-
faces. (Use Genuine Liquid Gasket or equivalent.)
lFor oil pan, be sure liquid gasket diameter is 3.5 to
4.5 mm (0.138 to 0.177 in) for gasoline engines.
lFor areas except oil pan, be sure liquid gasket diam-
eter is 2.0 to 3.0 mm (0.079 to 0.118 in) for gasoline
engines and 2.5 to 3.5 mm (0.098 to 0.138 in) for
diesel engines.
c. Apply liquid gasket around the inner side of bolt holes
(unless otherwise specified).
d. Assembly should be done within 5 minutes after coating.
e. Wait at least 30 minutes before refilling engine oil and
engine coolant.
SEM164F
AEM080
PRECAUTIONS
EM-1