Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1710

IGNITION SYSTEM 6D2-3

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 - 1.1 mm (0.027 in) - 0.8 mm

(0.031 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

Ω

Ω

Ω

Ω or more

6D2-4 IGNITION SYSTEM

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 gefore 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.

Installation

1. Spark plugs

• Tighten spark plugs to the specified torque.
Torque: 25 N

⋅⋅⋅⋅m (2.5 kgf⋅⋅⋅⋅m)

Crankshaft Angle Sensor

Removal

1. Disconnect battery ground cable

2. Disconnect the wiring connector from crankshaft angle

sensor.

3. Remove crankshaft angle sensor from cylinder block.

Installation

1. Install crankshaft angle sensor into the cylinder block.

Before installation, apply small amount of engine oil to the

O-ring.

Torque: 6 N

⋅⋅⋅⋅m (0.6 kgf⋅⋅⋅⋅m)

2. Reconnect wiring connector to crankshaft angle sensor.

IGNITION SYSTEM 6D2-5

Main Data and Specifications

General Specifications

Ignition System

Ignition Form

Electronic Ignition System (El system) with Crankshaft angle Sensor

Spark Plug

Type

No. of Coils and Type

Coil Location

Torque

Electronic Spark Control

2 Solid State

Engine-mounted

20 N

⋅m (2.0 kgf⋅m)

STARTING AND CHARGING SYSTEM 6D3-1

SECTION 6D3

STARTING AND CHARGING SYSTEM

CONTENTS

PAGE

Starting System . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6D3- 2

General Description . . . . . . . . . . . . . . . . . . . . . . . . . ... 6D3- 2

Service Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D3- 2

Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D3- 2

Starter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6D3- 3

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6D3- 3

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6D3- 3

Disassembled View . . . . . . . . . . . . . . . . . . . . . . . . ... 6D3- 4

Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . ... 6D3- 5

Characteristic Test . . . . . . . . . . . . . . . . . . . . . . . . . 6D3- 6

Charging System . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D3- 7

General Description . . . . . . . . . . . . . . . . . . . . . . . . . ... 6D3- 7

General On-Vehicle Inspection . . . . . . . . . . . . . . . . . . . . . . 6D3- 8

Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D3- 8

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6D3- 8

Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6D3- 8

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6D3- 9

Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D3-12

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6D3-13

Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6D3-14

Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6D3-14

Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D3-18

Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6D3-19

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D3-21