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course outline

WORKSHOP REGULATIONS AND SAFETY
- Basic Safety Rules for Personnel, Tools, Equipment and Environment
- Identification and Use of Safety Devices (Aprons, Goggles, Shield)
- Types of Fire Extinguishers (Foam, Dry Powder, Sand, Water, Wet-Blanket)
- Demonstration and Use of Fire Extinguishers
BASIC TOOLS, INSTRUMENTS AND EQUIPMENT
- Identification and Use of Basic Tools (Hand Tools, Power Tools)
- Identification and Use of Measuring Instruments
- Identification and Use of Basic Equipment (Jacks, Hoists, Air-Compressors)
LAYOUT OF A MOTOR VEHICLE
- Layout and Inspection of a Conventional Motor Vehicle
- Identification and Functions of Main Components
- Drive Arrangements and Inspection (Front/Rear Wheel Drive, Four-Wheel Drive)
ENGINE
- Main Components - Engine Classification (Petrol and Diesel Engines)
- Main Components - Arrangement and Functions of Components (Cylinder Head, Crankshaft, Piston, Valves)
- Main Components - Decarbonization of Cylinder Head
- Principles of Operation - Two and Four Stroke Cycle Petrol and Diesel Engines
- Types of Engine - Advantages and Disadvantages of Petrol and Diesel Engines
- Types of Engine - Single and Multi-Cylinder Engines (Inspection and Classification)
- Types of Engine - Compression Test
- Types of Engine - Measurement of Bore and Crank-Journals for Wear
- Crank Arrangement and Firing Order - Types (In-line, V-Type, Horizontally-Opposed)
- Crank Arrangement and Firing Order - Determination Through Valve Opening
- Crank Arrangement and Firing Order - Fault Diagnosis
- Valve-Operating Mechanism - Functions, Operation and Layout
- Valve-Operating Mechanism - Valve Timing and Calculations
- Valve-Operating Mechanism - Identification of Main Components
- Valve-Operating Mechanism - Valve Adjustments
- Valve-Operating Mechanism - Fault Diagnosis
FUEL SUPPLY SYSTEMS
- Fuels and Combustion - Elements, Air-Fuel Ratios, Properties (Petrol, Diesel)
- Fuel System Troubles - Checking and Exhaust Gas Inspection
- Petrol Supply System - Layout and Operation (Gravity, Force-Feed, Carburetor, Fuel Pumps)
- Petrol Supply System - Inspection, Dismantling and Reassembling Mechanical Fuel Pumps
- Petrol Supply System - Fault Diagnosis
- Petrol Injection System - Merits, Demerits, Electronic Fuel Injection (EFI)
- Petrol System - Dismantling, Inspection and Reassembling Carburetors
- Petrol Injection System - Identification of Main Components
- Diesel Supply System - Layout, Injection Pumps, Injectors and Cold Starting Devices
- Diesel Supply System - Inspection, Servicing and Bleeding of Injection Pumps and Injectors
EXHAUST SYSTEM
- Purpose and Layout of the System (Silencers, Manifolds)
- Inspection of Exhaust System and Manifold Identification
- Checking Exhaust System for Leakage
LUBRICATION
- Engine Lubrication - Reasons, Types (Boundary, Film) and Lubricated Parts
- Lubrication Systems - Types of Feed (Splash, Forced, Petroil) and Oil Pumps
- Lubrication Systems - Changing Oil and Oil Filters
- Lubrication Systems - Servicing and Testing of Pumps
- Lubrication Systems - Fault Diagnosis
- Lubricants - Applications, Viscosity Rating and SAE Numbers
- Lubricants - Identification, Comparison (Fresh vs Used Oil) and Use of Grease Gun/Oil Can
COOLING SYSTEM
- Process of Heat Transfer
- Water Cooling System - Purpose, Layout, Main Components and Thermostats
- Water Cooling System - Component Identification, Radiator Inspection, Fan Belt and Hose Replacement
- Water Cooling System - Flushing
- Water Cooling System - Fault Diagnosis
- Air Cooling System - Layout, Functions, Main Components and Comparison with Water Systems
- Air Cooling System - Fault Diagnosis
TRANSMISSION SYSTEM
- Transmission System Layout - Functions, Types (Manual, Automatic), Merits and Demerits
- Clutch Assembly - Functions, Types (Single/Multi-Plate), Operating Principles and Actuation Methods
- Clutch Assembly - Introduction to Automatic Transmission (Torque Converter, Fluid Flywheel)
- Clutch Assembly - Dismantling, Identifying Parts and Re-assembling a Clutch Unit
- Clutch Assembly - Adjusting Pedal Clearance, Bleeding and Fault Diagnosis
- Gearbox - Types, Layout, Operating Principles (Sliding-Mesh, Synchromesh) and Components
- Gearbox - Identification of Components
- Gearbox - Inspection of Gear Teeth for Wear
- Gearbox - Fault Diagnosis
- Propeller Shaft and Universal Joint - Functions and Types
- Propeller Shaft and Universal Joint - Examination for Bow and Wear
- Rear Axle - Purpose, Arrangement and Functions of Main Components (Final Drive, Differential, Half-Shaft)
- Rear Axle - Methods of Supporting Axle Shafts (Advantages and Disadvantages)
- Rear Axle - Identification of Main Components and Fault Diagnosis
WHEELS AND TYRES
- Wheel Rims - Types (Pressed Steel, Disc, Wire Spoke) and Hub Attachments
- Wheel Bearings - Checking and Adjustment of Clearance
- Road Wheels - Removal and Changing
- Tyres - Tubed and Tubeless Types (Advantages and Disadvantages)
- Tyre Fitting and Checking Tyre Pressure
- Tyre Patching (Tube and Tyre)
- Wheel Balancing, Tyre Sizes and Markings
BRAKING SYSTEM
- Braking System - Layout, Functions and Operation (Drum, Disc, Mechanical, Hydraulic)
- Brake Lining Materials and Methods of Attachment
- Importance of Servo-Assisted Brakes
- Advantages and Disadvantages of Disc and Drum Brakes
- Brake Inspection, Replacement of Pads/Shoes, Bleeding and Adjustment
- Brakes - Spot Testing
- Brake Fault Diagnosis
STEERING SYSTEM
- Front Axle and Steering Systems - General Layout and Functions
- Identification of Main Components of Different Layouts
- Steering Geometry (Ackerman Linkage, Castor, Camber, Toe-in/out)
- Types of Steering Gearboxes (Rack and Pinion, Recirculating Ball)
- Front Wheel Alignment and Inspection of Tyre Wear Patterns
- Steering Fault Diagnosis
SUSPENSION SYSTEM
- Purpose, Layout and Types of Suspension System (Rigid Beam, Independent)
- Suspension - Types of Springs (Semi-Elliptic, Coil) and Dampers (Shock Absorbers)
- Identification of Differences between Rigid Beam and Independent Suspension
- Suspension System - Fault Diagnosis
ELECTRICAL SYSTEMS
- Electrical Fundamentals - Basic Terms, Symbols, AC/DC Sources, Simple Circuits
- Electrical Fundamentals - Ohm's Law and Calculations (Series, Parallel Circuits)
- Electrical Fundamentals - Basic Components and Functions (Relays, Resistors, Fuses, Switches)
- Electrical Fundamentals - Setting up Simple Circuits and Using Measuring Instruments
- Auto Wiring System - Wire Gauges, Colour Coding and Reasons for Use
- Auto Wiring System - Earth and Insulated Returns, Joining Cables (Jointing, Terminals, Soldering)
- Battery - Purpose, Construction, Testing of Lead-Acid Battery and Electrolyte Composition
- Battery - Care, Maintenance and Preparation of Electrolyte
- Ignition System - Layout, Function and Operation of Coil Ignition System
- Ignition System - Introduction to Computerized Ignition System
- Ignition System - Component Identification, Timing, Setting Contact Breaker Points and Spark Plug Gaps
- Starting System - Layout, Functions of Main Components and Types of Starter Motor
- Starting System - Inspection and Identification of Main Components
- Charging System - Purpose, Layout (Dynamo, Alternator) and Main Components Operation
- Charging System - Comparison of DC and AC Generators
- Charging System - Identification of Component Parts
- Lighting System - Layout, Main Components, Functions, Fuses and Bulbs (Types, Ratings)
- Lighting System - Component Identification, Inspection, Replacement of Bulbs and Fuses
- Lighting System - Headlamp Focusing
- Auxiliary Units - Layout and Operations (Instrument Panel, Horn, Windscreen Wiper)
- Electrical Faults - Diagnosis
ELECTRONICS
- Fundamentals of Electronics - Explanation of Auto Electronics Term
- Fundamentals of Electronics - Identification and Functions of Electronic Components (Diodes, Transistors, Resistors, Capacitors, LED, Transducers)
- Fundamentals of Electronics - Symbols in a Circuit
- Electronic Ignition - Operation and Types of Transistorized and Electronic Ignition Systems (Inductive, Hall Effect)
- Electronic Ignition - Merits and Demerits
- Electronic Fuel Injection - Purpose and Types of Systems (Single-Point, Multi-Point Injections)
- Electronic Fuel Injection - Identification of Components in Systems
AUTO AIR-CONDITIONING
- Purpose, Layout and Identification of Major Components (Compressor, Condenser, Evaporator, Dryer)
- Principles of Operation
- Inspection and Identification of Air-Conditioning System and Components
SAFE MOTORING
- Main Causes of Accidents
- Essentials of Safe Driving and Application of Highway Code
- Safety Devices
- Identification of Faults and Defective Components Causing Accidents
- Identification and Interpretation of Road Signs

Auto Mechanics

WAEC WASSCE

course outline