Google Links

Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Identify relevant information relating to petrol and diesel engine operation in work activities
   • Functions of engine components are identified during testing and repair activities
   • Functions of engine-related electrical systems are identified during testing and repair activities
2. Apply knowledge of petrol and diesel engine operation in work activities
   • Effect of electrical system on engine performance is identified during testing and repair activities
   • Knowledge is applied of the relationship that a four-stroke cycle petrol engine has with vehicle ignition, starting, air and fuel delivery and cooling systems
   • Knowledge is applied of the relationship that a diesel engine has with vehicle ignition, starting, air and fuel delivery and cooling systems
3. Evaluate knowledge of petrol and diesel engine operation
   • Knowledge is regularly checked with colleagues and supervisor to ensure currency and accuracy
   • Knowledge is updated as required to complement own work role
4. Identify relevant information relating to petrol and diesel engine operation in work activities
   • Functions of engine components are identified during testing and repair activities
   • Functions of engine-related electrical systems are identified during testing and repair activities
5. Apply knowledge of petrol and diesel engine operation in work activities
   • Effect of electrical system on engine performance is identified during testing and repair activities
   • Knowledge is applied of the relationship that a four-stroke cycle petrol engine has with vehicle ignition, starting, air and fuel delivery and cooling systems
   • Knowledge is applied of the relationship that a diesel engine has with vehicle ignition, starting, air and fuel delivery and cooling systems
6. Evaluate knowledge of petrol and diesel engine operation
   • Knowledge is regularly checked with colleagues and supervisor to ensure currency and accuracy
   • Knowledge is updated as required to complement own work role

Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Engine-related electrical systemsmust include:

ignition system charging system starting system engine management system.

---

Performance Evidence

Before competency can be determined, individuals must demonstrate they can perform the following according to the standard defined in the unit’s elements and performance criteria, range of conditions and foundation skills:

apply knowledge of petrol and diesel engine operation during the testing and repair of three different vehicle, vessel or machinery electrical systems

evaluate and expand knowledge of petrol and diesel engine operation, including demonstrating knowledge of one of the following:

a new automotive petrol and diesel engine testing procedure

a new automotive petrol and diesel engine repair procedure

a new automotive petrol and diesel engine technology.

---

Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

types and location of sources of technical information relevant to automotive electrical systems, including:

workplace service information

automotive engine mechanical texts

vehicle workshop manuals

service bulletins

technical articles

automotive textbooks

classifications of engines, including:

internal combustion

reciprocating and rotary engines

spark ignition engines

compression ignition engines

engine cylinder arrangements

engine configurations, including:

inline engines, V type engines and slant cylinder engines

opposed cylinder engines

camshaft and valve locations, including:

overhead cam (OHC)

overhead valve (OHV)

engine operating principles, including:

two-stroke cycles

four-stroke cycles

engine measurement and performance ratings

operating performance of engines, including:

petrol engines

diesel engines

petrol and diesel engine operation, including:

engine construction

engine types and configuration

two-stroke and four-stroke

cycles of engine operation, including:

intake stroke

compression stroke

power stroke

exhaust stroke

firing orders

ignition types, including:

spark

compression

engine mounting location, including:

front longitudinal

front transverse

mid transverse

measurement and performance, including:

bore and stroke

displacement

compression ratio

engine efficiency

torque versus horsepower

engine components, including:

top of engine, including:

timing belt or chain

camshaft timing pulley

camshaft single and dual

rocker arms and shafts

intake valves and springs

exhaust valves and springs

cylinder head

front of engine, including:

crankshaft

crankshaft timing pulley

crankshaft pulley and balancer

rear of engine, including:

flywheel

starter ring gear

bottom of engine, including:

engine block

crankshaft

crankshaft balance weights

crankshaft main bearing journals

pistons

connecting rods

relationships between electrical systems and engine performance, including:

ignition system and engine power and torque, including:

ignition timing

combustion stroke pressure

diesel injection system and engine power and torque, including:

injection timing

combustion stroke pressure

starter motor system, including:

current draw of starting system of high compression engines

types of batteries and starter motors for petrol and diesel engines

wiring requirements of starter motor systems for petrol and diesel engines

charging system, including system requirements for low and high speed engines.

---