Knowledge of Light Vehicle Engine Mechanical, Lubrication and Cooling System Units and Components


Unit Reference Number:     R/601/3719

Learning OutcomesAssessment Criteria
1Understand how the main light vehicle engine mechanical systems operate1.1Identify light vehicle engine mechanical system components
1.2Describe the construction and operation of light vehicle engine mechanical systems

a. four stroke
b. spark ignition
c. compression ignition
d. rotary

1.3Compare key light vehicle engine mechanical system components and assemblies against alternatives to identify differences in construction and operation
1.4Identify the key engineering principles that are related to light vehicle engine mechanical system
sa compression ratio’
sb cylinder capacit
yc powe
rd torque
1.5State common terms used in light vehicle engine mechanical system desig
na td
cb bd
cc strok
ed bore
2Understand how light vehicle engine Lubrication systems operate2.1Identify light vehicle engine lubrication system components
2.2Describe the construction and operation of light vehicle engine lubrication components and systems

a. full flow
b. by pass
c. wet sump
d. dry sump

2.3Compare key light vehicle engine lubrication system components and assemblies to identify differences in construction and operation
2.4Identify the key engineering principles that are related to light vehicle engine lubrication systems

a. classification of lubricants
b. properties of lubricants
c. methods of reducing friction

2.5State common terms used in light vehicle engine lubrication system design
3Understand how light vehicle engine cooling, heating and ventilation systems operate3.1Identify light vehicle engine cooling, heating and ventilation system components
3.2Describe the construction and operation of light vehicle engine cooling, heating and ventilation systems
3.3Compare key light vehicle engine cooling, heating and ventilation system components and assemblies against alternatives to identify differences in construction and operation
3.4Identify the key engineering principles that are related to light vehicle engine cooling, heating and ventilation systems

a. heat transfer
b. linear and cubical expansion
c. specific heat capacity
d. boiling point of liquids

3.5State common terms used in key light vehicle engine cooling, heating and ventilation system design
4Understand how to check, replace and test light vehicle engine mechanical, lubrication and cooling systems system units and components4.1Describe how to remove and replace engine mechanical, lubrication and cooling system units and components
4.2Describe common types of testing methods used to check the operation of engine mechanical, lubrication and cooling systems and their purpose
4.3Describe how to test and evaluate the performance of replacement units against vehicle specification
4.4Identify common faults found in light vehicle engine mechanical, lubrication and cooling systems and their causes