Page 1089 of 3573

6D2±4
IGNITION SYSTEM
Spark Plug
Removal
1. Remove spark plugs.
Inspection and Repair
The spark plug affects entire engine performance and
therefore its inspection is very important.
Check electrode and insulator for presence of cracks,
and replace if any.
Check electrode for wear, and replace if necessary.
Check gasket for damage, and replace if necessary.
Measure insulation resistance with an ohmmeter, and
replace if faulty.
Adjust spark plug gap to 1.0 mm (0.04 in) ~ 1.1 mm
(0.043 in).
Check fuel and electrical systems if spark plug is
extremely dirty.
Use spark plugs having low heat value (hot type plug)
if fuel and electrical systems are normal.
Use spark plugs having high heat value (cold type
plug) if insulator and electrode are extremely burned.
Sooty Spark Plugs
Much deposit of carbon or oil on the electrode and
insulator of spark plug reduces the engine performance.
Possible causes:
Too rich mixture
Presence of oil in combustion chamber
Incorrectly adjusted spark plug gap
Burning Electrodes
This fault is characterized by scorched or heavily oxidized
electrode or blistered insulator nose.
Possible causes:
Too lean mixture
Improper heat value
Measuring Insulation Resistance
Measure insulation resistance using a 500 volt
megaohm meter.
Replace spark plugs if measured value is out of
standard.
Insulation resistance: 50 M or more
011RS010
Cleaning Spark Plugs
Clean spark plugs with a spark plug cleaner.
Raise the ground electrode to an angle of 45 to 60
degrees. If electrode is wet, dry it before cleaning.
After spark plug is thoroughly cleaned, check
insulator for presence of cracks.
Clean threads and metal body with a wire brush.
File the electrode tip if electrode is extremely worn.
Bend the ground electrode to adjust the spark plug
gap.
011RS011
Installation
1. Spark plugs
Tighten spark plugs to the specified torque.
Torque: 18 N´m (1.8 Kg´m/13 lb ft)
Page 1090 of 3573
6D2±5
IGNITION SYSTEM
Crankshaft Angle Sensor
Removal
1. Disconnect battery ground cable
2. Wiring connector from crankshaft angle sensor.
3. Remove crankshaft angle sensor from cylinder block.
012RS008
Installation
1. Install crankshaft angle sensor into the cylinder block.
Before installation,apply small amount of engine oil to
the O±ring.
Torque: 10 N´m (1.0 Kg´m/89 lb in)
2. Reconnect wiring connector to crankshaft angle
sensor.
Page 1091 of 3573
6D2±6
IGNITION SYSTEM
Main Data and Specifications
General Specifications
Ignition System
Ignition FormElectronic Ignition System (El system) with Crankshaft angle Sensor
Spark Plug
TypeK16PR±P11
RC10PYP4
PK16PR11
Plug gap1.0 mm (0.04 in) ± 1.1 mm (0.043 in)
Torque18 N´m (1.8 Kg´m/13 lb ft)
Torque Specifications
N´m (Kg´m/lb ft)
E06RW038
Page 1092 of 3573

6D3±1 STARTING AND CHARGING SYSTEM
ENGINE
STARTING AND CHARGING SYSTEM
CONTENTS
Service Precaution 6D3±1. . . . . . . . . . . . . . . . . . . . . .
Starting System 6D3±2. . . . . . . . . . . . . . . . . . . . . . . . .
General Description 6D3±2. . . . . . . . . . . . . . . . . . . . .
Diagnosis 6D3±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter 6D3±5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6D3±5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6D3±5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View 6D3±6. . . . . . . . . . . . . . . . . . . .
Disassembly 6D3±7. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6D3±9. . . . . . . . . . . . . . . . . .
Reassembly 6D3±13. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6D3±15. . . . . . . . . . .
Charging System 6D3±18. . . . . . . . . . . . . . . . . . . . . . . . General Description 6D3±18. . . . . . . . . . . . . . . . . . . . .
General On±Vehicle Inspection 6D3±18. . . . . . . . . . .
Generator 6D3±19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6D3±19. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6D3±19. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6D3±19. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View 6D3±20. . . . . . . . . . . . . . . . . . . .
Disassembly 6D3±21. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6D3±23. . . . . . . . . . . . . . . . . .
Reassembly 6D3±24. . . . . . . . . . . . . . . . . . . . . . . . . .
Bench Test 6D3±25. . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6D3±26. . . . . . . . . . .
Service Precaution
WARNING: I F S O E Q U IPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
Page 1093 of 3573
6D3±2STARTING AND CHARGING SYSTEM
Starting System
General Description
Cranking Circuit
The cranking system consists of a battery, starter, starter
switch, starter relay, etc. These main components are
connected.
Starter
The cranking system employs a magnetic type reduction
starter in which the motor shaft is also used as a pinion
shaft. When the starter switch is turned on, the contacts of
magnetic switch are closed, and the armature rotates. At
the same time, the plunger is attracted, and the pinion is
pushed forward by the shift lever to mesh with the ring
gear.
Then, the ring gear runs to start the engine. When the
engine starts and the starter switch is turned off, the
plunger returns, the pinion is disengaged from the ring
gear, and the armature stops rotation. When the engine
speed is higher than the pinion, the pinion idles, so that
the armature is not driven.
Page 1094 of 3573
6D3±3 STARTING AND CHARGING SYSTEM
C06RW005
Page 1095 of 3573
6D3±4STARTING AND CHARGING SYSTEM
Diagnosis
ConditionPossible causeCorrection
Starter does not runCharging failureRepair charging system
Battery FailureReplace Battery
Terminal connection failureRepair or replace terminal connector
and/or wiring harness
Starter switch failureRepair or replace starter switch
Starter failureRepair or replace starter
Page 1096 of 3573
6D3±5 STARTING AND CHARGING SYSTEM
Starter
Removal
1. Battery ground cable.
2. Remove exhaust front left pipe(1).
150RW062
3. Remove heat protector(3).
4. Disconnect starter wiring connector from terminals
ªBº and ªSº(4).
5. Remove starter assembly mounting bolts on inside
and outside(5).
6. Remove starter assembly toward the bottom of
engine(6).
065RW027
Installation
1. Install starter assembly(6).2. Install mounting bolts and tighten bolts to specified
torque(5).
Torque: 40 N´m (4.1 Kg´m/30 lb ft)
3. Reconnect the connectors to terminals ªBº and ªSº
and tighten Terminals ªBº to specified torque.
Torque: 9 N´m (0.9 Kg´m/80 lb in)
4. Install heat protector(3).
065RW027
5. Install exhaust front left pipe and tighten bolts and
nuts to specified torque(2).
Stud Nuts
Torque: 67 N´m (6.8 Kg´m/49 lb ft)
Nuts
Torque: 43 N´m (4.4 Kg´m/32 lb ft)
150RW062
6. Reconnect the battery ground cable.