Mufler design
Students to:
Correctly identify fuel pump.
Dismantle and name the parts in a fuel pump
List types of muffler design
State the importance of muffler in a silencer unit.
Dismantle the mechanical fuel pump provided and inspect the following parts:
i. Diaphragm
ii. Return Spring
iii. Inlet and outlet valve and rea assemble the units.
Fuel pump
Students should be able to Identify the parts of a:
i. Mechanical fuel pump.
ii. Electrical fuel pump.
Explain the operation of electrical fuel pump and mechanical pump.
Carry out simple maintenance on fuel pump.
Install the exhaust manifold, pipes and mufflers.
Fix appropriately the exhaust system.
Additives and types of cooling system
Students should be able to Make a line sketch of the engine lubricating system
State basic lubrication diagnosis and services to be carried out
Identify and list parts that need to be lubricated
Carry out lubrication service.
Types of suspension springs
Students should be able to State effects of defects in suspension system. i.e. Leaf, spring, coil spring, etc.
State faults associated with steering system.
Identify types of suspension and steering gearboxes
Routine maintenance of the chassis
Students should be able to Identify and select appropriate tools/equipment for maintenance of chassis.
Identify types of chassis brackets.
Engine operation
Students should be able to Explain the principles of operation of working components parts in an engine.
Identify and draw line diagrams on the constructional details of two and four stroke cycle engine.
Explain the working sequence of an engine and the causes of effects of denotation.
Operation of hydraulic operated braking system
Identify the operational differences between mechanical and hydraulic brakes.
Carry out replacements of:
i. Brake shoe
ii. Brake pads
iii. Wheel cylinder components
iv. Brake caliper ring rubber.
Brake bleeding operation.
Operation of mechanically operated braking system
Students should be able to Explain fully the details of:
i. Drum brakes
ii. Disc brakes in both hydraulic and mechanical operations.
Illustrate with sketches the operation of:
i. Master cylinder
ii. Wheel cylinder
Hi. Brake calipers
Identify the operational differences between mechanical and hydraulicbrakes.
Carry out replacementsof:
i. Brake shoe
ii. Brake pads
iii. Wheel cylinder components
iv. Brake caliper ring rubber.
Brake bleeding operation.
Fuel properties, carburetors, air cleansers
Students should be able to Explain properties of fuels.
Draw and explain the operation of simple and multi-jet carburetors.
Illustrates with sketches, the types and function of air cleaners.
Service carburetors used in motor vehicles.
Remove and clean air cleaners.
Operations of engine lubrcation and cooling system
Students should be able to State the difference between viscousity in water and in oil lubrication system.
State necessary precautions of engine oil.
Explain, sketch and identify the main components in lubrication system.
Explain, sketch and identify the main components in cooling system.
Types of suspension and steering systems and their operation
Students should be able to State effects of defects in suspension system. i.e. Leaf, spring, coil spring, etc.
State faults associated with steering system.
Identify types of suspension and steering gearboxes.
Main components of a transmission unit
Students should be able to Identify the various components of the transmission system.
Explain the function of each of the component parts of a transmission system.
Illustrate with neat sketches/line diagram of the parts of a transmission system.
Operation of slidin mesh gearbox (Three and four speed gearbox).
Principle of operation main components mounted on the chassis
Students should be able to Methods of securing the components:
a. Engine
b. Transmission
c. Steering
Explain in details the principle of operation in a, b, and c above.
Vehicle Rims
At the end of the lesson, the student should be able to understand Vehicle Rims
Types of Rims
Types of tyres
Wheel:Characteristic Features of a good motor vehicle wheels
Students should be able to Explain function of wheels and tyres in a motor vehicle.
Types of wheels.
Braking System
At the end of this lesson, the students should be able to understand Braking System
Types of manifold
Identify types of manifold.
Fuels and combustion
Students should be able to Describe the general layout of fuel system.
Illustrate the components parts of the fuel system.
Operation of braking system
Students should be able to State function of the braking system in a vehicle.
Sketch and explain the working principle of the braking system in a vehicle.
Identify types of the brakes in a vehicle.