Ignition System Components and Operation study manual

Description

Ignition System Components and Operation study manual – PDF DOWNLOAD

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DESCRIPTION:

Ignition System Components and Operation study manual – PDF DOWNLOAD

• In your previous study units, you learned about the components of an engine and how they affect engine operation.
• You also learned about automotive lubrication and cooling systems.
• In this study unit, you’ll learn how an engine’s ignition system operates. An engine’s ignition system generates the high voltage needed to make a spark plug fire.
• The sparks from the spark plugs ignite the air-and-fuel mixture in the engine’s cylinders and start the engine.
• When you complete this study unit, you’ll be able to
  Explain the difference between voltage, current, and resistance in a circuit
• 
  Describe how a spark plug is constructed and how it operates
• 
  Identify the components used in conventional and electronic ignition systems
• 
  Describe the operation of spark-advance mechanisms
• 
  Explain the operation of direct-fire ignition systems

TABLE OF CONTENTS:

Ignition System Components and Operation study manual – PDF DOWNLOAD

INTRODUCTION TO ELECTRICITY · · · · · · · · · · · · · · · · · · · · · · 1
A Simple Circuit
Conductors and Insulators
Current, Voltage, and Resistance
DC and AC Voltage and Current
The Relationship Between Current, Voltage, and Resistance
Measuring Electrical Quantities
Electromagnetism
INTRODUCTION TO IGNITION SYSTEM OPERATION · · · · · · · · · · · · 17
An Overview of Operation
The Battery
The Ignition Switch
The Ignition Coil
Triggering Devices
Spark Plug Wires
Spark Plugs
Firing Order
The Distributor
Review of Ignition System Operation
TRIGGERING IN CONVENTIONAL IGNITION SYSTEMS · · · · · · · · · · 42
Point-type Triggering Devices
The Contact Points
The Condenser
Primary-current Resistor
The Point Gap
The Dwell
TRIGGERING IN ELECTRONIC IGNITION SYSTEMS· · · · · · · · · · · · · 49
Magnetic-pickup Triggering Devices
Hall-effect Triggering Devices
Optical Triggering Devices
IGNITION TIMING IN DISTRIBUTOR-TYPE IGNITION SYSTEMS · · · · · · · 57
Initial Timing
Precision Timing
Spark-advance Mechanisms
Timing in Electronic Ignition Systems
Contents
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DIRECT-FIRE IGNITION SYSTEMS · · · · · · · · · · · · · · · · · · · · · · 64
Introduction
The Crankshaft Position Sensor
The Trigger Wheel
The Camshaft Position Sensor
Ignition Coils in Direct-fire Systems
Waste Sparks
Ignition Timing in Direct-fire Systems
Timing Control in Direct-fire Systems
Actual Direct-fire Examples
SUMMARY · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 98
POWER CHECK ANSWERS · · · · · · · · · · · · · · · · · · · · · · · · · 99
EXAMINATION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 101
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PLEASE NOTE:

• This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
• This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
• Require some other service manual or have any queries: please WRITE to us at [email protected]

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