MOTOR VEHICLE MECHANICS



MOTOR VEHICLE MECHANICS

2ND YEAR SYLLABUS

MAIN TOPIC SUBTOPIC

COMPRESSION IGNITON

(DIESEL ENGINE) Advantages of Diesel Engines

Two stroke diesel

Four stroke diesel

Operation of a diesel engine

Phases of combustion

Diesel knock

Types of combustion chamber

Direct injection

Indirect injection

Diesel fuel system

Lift pump

Inline pump

D.P.A. Lucas pump

V.E Pump

Calibration & Phasing

Fitting & Timing inline pump

Fitting & Timing DPA & V.E Pumps

GOVERNORS Function of Governors

Types of Governors

Mechanical Governors

Pneumatic Governors

Hydraulic Governors

INJECTION NOZZLES Function of injection nozzles

Pihtle & Pintaux

Single & multihole type

Injection nozzle testing

Injection nozzle servicing & Adjustments

DIESEL STARTING DEVICES Decompressors

Heater plugs

Injection System and Equipment trouble

Shooting

CARBURATION Functions of a Complete Carburetter

Requirements for a carburetter

Mixture strength

Mixture mass

Carburetter circuits

Cold starting

Acceleration

Idling

Economization

Compensation

Correction

The Solex Carburetter operation

The Zenith carburetter operation

The S.U Carburetter operation

Electronic carburetor

Carburettor trouble shooting

PETROL FUEL INJECTION Advantages of petrol fuel injection

Terminology in petrol injection

Mechanical fuel injection layout

Fuel accumulator

Fuel pressure regulator

Fuel distributor

Air-flow sensor

Auxiliary air device

Starting injector

Vehicle injector

Mechanical fuel injection trouble shooting

ELECTRONIC FUEL INJECTION The L – Jetronic

Air-flow sensor

Sensor involved in L – Jetronic

Operation of L.H.Jetronic

Operation of D-Jetronic

Operation of Motronic

Servicing of electronic fuel injection without

A fault code Reader

Decording of flash codes

Counting of flash codes

Flash code removal

Testing of electronic gudgets using simple

Equipments.

Interpretation of Electronic data.

Road rescue of an electronic fuel injection.

Electronic Injection Trouble Shooting.

FOUR WHEEL DRIVE Function of four wheel drive

Operation of four wheel drive

Part time four wheel drive

Full-Time four wheel drive

Diff LOCKING

Lubrication & Servicing

Dismantle and Asswmbling four wheel drive

Trouble shooting four wheel drive

SUSPENSION SYSTEM

(PART II) Automatic Suspension

Electronically Controlled telescopic

Dampers.

Citroen Suspension

Ride height Adjustment

Full-Pneumatic Suspension

Trouble shooting

BRAKE SYSTEM

(PART II) The Engine brakes

Retarders

Anti-lock brake system

A.B.S. Service & Maintenance

Air brakes

Tractor Brakes

Trouble shooting

TURBO CHARGERS Functions of a Turbo-chargers

Operation of turbo chargers

Turbo-lag

Turbo Timers

Turbo Lubrication

Turbo Servicing

Trouble Shooting

SUPERCHARGER Function of a Supercharger

Operation of a Supercharger

Trouble Shooting

STEERING SYSTEM

(PART II) Power assisted steering

Power steering

Foul wheel steering

Trouble Shooting

ROADSIDE RESCUE Fuel system check

Ignition System Check

Vehicle Towing

MOTOR VEHICLE MECHANIC

2ND YEAR PRACTICAL

The second year Motor Vehicle Mechanics Practical is carried in a very unique way. This is because in first year most of the practical work was involving worn out components from non-functional Engines. However 2nd year practical will mostly involve Live Component and even functional components inorder to drive in the required message.

PRACTICAL I Diesel engine which is functioning.

Engine Dismantle, study, observe and

Acculate assembling.

PRACTICAL II Petrol engine which is functioning.

Carburettor Dismantle study, observe and

Tune-up Setting.

PRACTICAL III Mechanical fuel injection vehicle.

Studying of Components operation

Dismantle & Assembly.

PRACTICAL IV Electronic fuel injection vehicle.

Studying of Components, their operation

Dismantle observation and Assembling.

Using a jumper wire to retrieve data from

The electronic Control Unit.

Using a Voltneter to retrieve data.

Using a Light emitting diode to retrieve

Information.

Using a fault code reader.

Decording of flash code without fault code

Reader.

Decording of flash code with fault code

Reader.

PRACTICLAL V Removing & Assembling of Transfer

Gearbox.

Dsimantling & Assemblage of four wheel

Drive hub.

PRACTICAL VI Servicing of Automatic Suspension

PRACTICAL VII Identification of parts of Anti-lock brake

System.

Servicing of an A.B.S System.

PRACTICAL VIII Opening identification and studying of

Turbo-charger.

PRACTICAL IX Opening identification and studying of

SuperCharger

PRACTICAL X Opening identification and studying of a

Power assisted steering

PRACTICAL XI Wheel alignment without using gauges.

Wheel alignment & balancing using

Gauges.

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