Assessor Resource

AURRTE006
Diagnose and repair marine outboard engines

Assessment tool

Version 1.0
Issue Date: May 2024


This unit describes the performance outcomes required to diagnose and repair faults in the two and four-stroke cycle outboard engines of marine vessels. It involves preparing for the task, selecting the correct diagnostic procedure, carrying out the diagnosis and the repair, performing post-repair testing, and completing workplace processes and documentation.

It applies to those working in the marine service and repair industry.

No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Prepare to diagnose and repair marine outboard engine

1.1 Job requirements are determined from workplace instructions

1.2 Diagnostic information is sourced and interpreted

1.3 Diagnostic options are analysed and those most appropriate to the circumstances are selected

1.4 Hazards associated with the work are identified and risks are managed

1.5 Diagnostic tools and equipment are selected and checked for serviceability

2. Diagnose engine

2.1 Diagnostic tests are carried out according to workplace procedures and safety requirements

2.2 Faults are identified from diagnostic test results and causes of faults are determined

2.3 Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures

3. Dismantle engine

3.1 Tools, equipment and materials are selected and checked

3.2 Engine is dismantled as required according to workplace procedures, and safety and environmental requirements

3.3 Engine is cleaned and components arranged for inspection according to workplace procedures, and safety and environmental requirements

3.4 Engine components are measured and compared with manufacturer specifications

3.5 Final repair recommendations are made and reported according to workplace procedures

4. Repair and reassemble engine

4.1 Repair information is sourced and interpreted

4.2 Repair options are analysed and those most appropriate to the circumstances are selected

4.3 Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems

4.4 Engine is reassembled according to manufacturer specifications, workplace procedures and safety requirements

4.5 Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified

5. Complete work processes

5.1 Final inspection is made to ensure work is to workplace expectations and engine is presented ready for use or stored according to workplace procedures

5.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected

5.3 Tools and equipment are checked and stored according to workplace procedures

5.4 Workplace documentation is processed according to workplace procedures

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

diagnose and repair a fault in two different marine two-stroke powerheads, in which the work must involve dismantling and reassembling the powerhead

diagnose and repair a fault in two different marine four-stroke powerheads, in which the work must involve dismantling and reassembling the powerhead.

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing outboard engines, including procedures for lifting and supporting outboard engines

environmental requirements, including procedures for trapping, storing and disposing of fluids released from engines

operating principles of outboard engines and associated components, including:

combustion, including:

air-fuel ratios and combustion cycles

direct injection

detonation

engine measurement and performance, including:

swept volume and engine volume

compression ratio

engine efficiency, including volumetric efficiency, thermal efficiency and mechanical efficiency

torque and horsepower, including brake horsepower

application, purpose and operation of outboard engines and components, including:

lubrication systems, cylinder blocks, cylinders, pistons, cylinder heads, combustion chambers, inlet manifolds, poppet and reed valves, connecting rods, crankshafts, piston rings, piston pins, camshafts, timing gears, vibration dampers and flywheels

diagnostic testing procedures for outboard engines, including:

wet and dry compression tests

cylinder leakage tests

oil pressure tests

sources of fluid leaks

exhaust smoke diagnosis

checking abnormal engine noises

dismantling procedures for outboard engines, including procedures for:

measuring clearances and tolerances

inspecting components

repair procedures for outboard engines, including procedures for repairing cylinder blocks and cylinder heads

assembly procedures for outboard engines, including procedures for fitting components and obtaining clearances and tolerances

post-repair testing procedures for outboard engines, including:

load testing engines

tank testing engines

water testing engines.

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the marine engines that they have worked on, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

marine repair workplace or simulated workplace

workplace instructions

manufacturer outboard engine specifications

two different marine two-stroke powerheads with system faults

two different marine four-stroke powerheads with system faults

diagnostic equipment for outboard engines and components

tools, equipment and materials appropriate for dismantling, repairing, reassembling and adjusting outboard engines and components.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Prepare to diagnose and repair marine outboard engine

1.1 Job requirements are determined from workplace instructions

1.2 Diagnostic information is sourced and interpreted

1.3 Diagnostic options are analysed and those most appropriate to the circumstances are selected

1.4 Hazards associated with the work are identified and risks are managed

1.5 Diagnostic tools and equipment are selected and checked for serviceability

2. Diagnose engine

2.1 Diagnostic tests are carried out according to workplace procedures and safety requirements

2.2 Faults are identified from diagnostic test results and causes of faults are determined

2.3 Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures

3. Dismantle engine

3.1 Tools, equipment and materials are selected and checked

3.2 Engine is dismantled as required according to workplace procedures, and safety and environmental requirements

3.3 Engine is cleaned and components arranged for inspection according to workplace procedures, and safety and environmental requirements

3.4 Engine components are measured and compared with manufacturer specifications

3.5 Final repair recommendations are made and reported according to workplace procedures

4. Repair and reassemble engine

4.1 Repair information is sourced and interpreted

4.2 Repair options are analysed and those most appropriate to the circumstances are selected

4.3 Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems

4.4 Engine is reassembled according to manufacturer specifications, workplace procedures and safety requirements

4.5 Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified

5. Complete work processes

5.1 Final inspection is made to ensure work is to workplace expectations and engine is presented ready for use or stored according to workplace procedures

5.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected

5.3 Tools and equipment are checked and stored according to workplace procedures

5.4 Workplace documentation is processed according to workplace procedures

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.

Safety requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for lifting and supporting outboard engines.

Environmental requirements must include:

procedures for trapping, storing and disposing of fluids released from engines.

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

diagnose and repair a fault in two different marine two-stroke powerheads, in which the work must involve dismantling and reassembling the powerhead

diagnose and repair a fault in two different marine four-stroke powerheads, in which the work must involve dismantling and reassembling the powerhead.

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing and repairing outboard engines, including procedures for lifting and supporting outboard engines

environmental requirements, including procedures for trapping, storing and disposing of fluids released from engines

operating principles of outboard engines and associated components, including:

combustion, including:

air-fuel ratios and combustion cycles

direct injection

detonation

engine measurement and performance, including:

swept volume and engine volume

compression ratio

engine efficiency, including volumetric efficiency, thermal efficiency and mechanical efficiency

torque and horsepower, including brake horsepower

application, purpose and operation of outboard engines and components, including:

lubrication systems, cylinder blocks, cylinders, pistons, cylinder heads, combustion chambers, inlet manifolds, poppet and reed valves, connecting rods, crankshafts, piston rings, piston pins, camshafts, timing gears, vibration dampers and flywheels

diagnostic testing procedures for outboard engines, including:

wet and dry compression tests

cylinder leakage tests

oil pressure tests

sources of fluid leaks

exhaust smoke diagnosis

checking abnormal engine noises

dismantling procedures for outboard engines, including procedures for:

measuring clearances and tolerances

inspecting components

repair procedures for outboard engines, including procedures for repairing cylinder blocks and cylinder heads

assembly procedures for outboard engines, including procedures for fitting components and obtaining clearances and tolerances

post-repair testing procedures for outboard engines, including:

load testing engines

tank testing engines

water testing engines.

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the marine engines that they have worked on, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

marine repair workplace or simulated workplace

workplace instructions

manufacturer outboard engine specifications

two different marine two-stroke powerheads with system faults

two different marine four-stroke powerheads with system faults

diagnostic equipment for outboard engines and components

tools, equipment and materials appropriate for dismantling, repairing, reassembling and adjusting outboard engines and components.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Job requirements are determined from workplace instructions 
Diagnostic information is sourced and interpreted 
Diagnostic options are analysed and those most appropriate to the circumstances are selected 
Hazards associated with the work are identified and risks are managed 
Diagnostic tools and equipment are selected and checked for serviceability 
Diagnostic tests are carried out according to workplace procedures and safety requirements 
Faults are identified from diagnostic test results and causes of faults are determined 
Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures 
Tools, equipment and materials are selected and checked 
Engine is dismantled as required according to workplace procedures, and safety and environmental requirements 
Engine is cleaned and components arranged for inspection according to workplace procedures, and safety and environmental requirements 
Engine components are measured and compared with manufacturer specifications 
Final repair recommendations are made and reported according to workplace procedures 
Repair information is sourced and interpreted 
Repair options are analysed and those most appropriate to the circumstances are selected 
Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems 
Engine is reassembled according to manufacturer specifications, workplace procedures and safety requirements 
Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified 
Final inspection is made to ensure work is to workplace expectations and engine is presented ready for use or stored according to workplace procedures 
Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 
Tools and equipment are checked and stored according to workplace procedures 
Workplace documentation is processed according to workplace procedures 
Job requirements are determined from workplace instructions 
Diagnostic information is sourced and interpreted 
Diagnostic options are analysed and those most appropriate to the circumstances are selected 
Hazards associated with the work are identified and risks are managed 
Diagnostic tools and equipment are selected and checked for serviceability 
Diagnostic tests are carried out according to workplace procedures and safety requirements 
Faults are identified from diagnostic test results and causes of faults are determined 
Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures 
Tools, equipment and materials are selected and checked 
Engine is dismantled as required according to workplace procedures, and safety and environmental requirements 
Engine is cleaned and components arranged for inspection according to workplace procedures, and safety and environmental requirements 
Engine components are measured and compared with manufacturer specifications 
Final repair recommendations are made and reported according to workplace procedures 
Repair information is sourced and interpreted 
Repair options are analysed and those most appropriate to the circumstances are selected 
Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems 
Engine is reassembled according to manufacturer specifications, workplace procedures and safety requirements 
Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified 
Final inspection is made to ensure work is to workplace expectations and engine is presented ready for use or stored according to workplace procedures 
Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 
Tools and equipment are checked and stored according to workplace procedures 
Workplace documentation is processed according to workplace procedures 

Forms

Assessment Cover Sheet

AURRTE006 - Diagnose and repair marine outboard engines
Assessment task 1: [title]

Student name:

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I declare that the assessment tasks submitted for this unit are my own work.

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Result: Competent Not yet competent

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Assessment Record Sheet

AURRTE006 - Diagnose and repair marine outboard engines

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

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Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

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Date:

Student signature:

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