Application

This unit of competency defines the skills and knowledge required to dismantle, clean and assess parts, record and interpret measurements, and recondition components.

It includes cylinder honing using hand held power tools, and replacement of bearings, piston rings and similar activities but not major machining, including crankshaft grinding, cylinder boring and tunnel boring.

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

What You'll Learn

Assessment Requirements

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria on at least two (2) occasions and include:

following work instructions, standard operating procedures (SOPs) and safe work practices

identifying and interpreting specifications, charts, lists, drawings and other applicable reference documents to perform engine bottom-end overhaul

checking engine for conformance and removing the engine and top-end components and dismantling block assembly

undertaking calculation and numerical operations to calculate bearing clearances

checking parts for abnormal wear or defects and identifying components for reuse or replacement

cleaning parts using appropriate solutions and safety precautions, racking and setting out engine parts according to their original position in readiness for reassembly

obtaining and recording measurements and interpreting readings for replacement or reuse as being under or over size

reassembling engine bottom-end components using appropriate tools, equipment and techniques.

Knowledge Evidence

Evidence required to demonstrate the required knowledge for this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include knowledge of:

safe work practices and procedures and use of personal protective equipment (PPE)

characteristics of surface finishes and wear patterns as applied to crankshaft and piston assemblies

specifications of crankshaft and piston assemblies

reasons for identifying the components for reuse or replacement

procedures for:

dismantling the block assembly and removing the engine from the plant

removing the top-end from the engine

cleaning engine parts and solution to be applied

racking and/or setting out of parts in readiness for reassembly

recording engine measurements

removing ridges, gaps, tapers, ovality and protrusions

assembling engine bottom ends and precautions to be taken

determining bearing clearances and methods to be applied

tools, techniques and equipment to be used and reasons for selection

action to be taken when abnormal wear or defects are observed in the engine components

measuring instruments to be used to measure engine components

concept of under/over size of replacement parts and the reasons for identifying replacement parts as under or over size

tools, techniques and equipment required to correct the above faults.

Assessment Conditions

Assessors must:

have vocational competency in performing engine bottom-end overhaul at least to the level being assessed with relevant industry knowledge and experience

satisfy the assessor requirements in the Standards for Registered Training Organisations 2015 or its replacement and comply with the National Vocational Education and Training Regulator Act 2011, its replacement or equivalent legislation covering VET regulation in a non-referring state/territory as the case requires

Where possible assessment must occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills

Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Foundation Skills

• text: This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency. Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Prerequisite Units

• {'code': 'MEM09002', 'title': 'Interpret technical drawing'}
• {'code': 'MEM11011', 'title': 'Undertake manual handling'}
• {'code': 'MEM12003', 'title': 'Perform precision mechanical measurement'}
• {'code': 'MEM12023', 'title': 'Perform engineering measurements'}
• {'code': 'MEM12024', 'title': 'Perform computations'}
• {'code': 'MEM13015', 'title': 'Work safely and effectively in manufacturing and engineering'}
• {'code': 'MEM14006', 'title': 'Plan work activities'}
• {'code': 'MEM16006', 'title': 'Organise and communicate information'}
• {'code': 'MEM18001', 'title': 'Use hand tools'}
• {'code': 'MEM18002', 'title': 'Use power tools/hand held operations'}
• {'code': 'MEM18055', 'title': 'Dismantle, replace and assemble engineering components'}

Parent Qualifications

• MEM40119 — Certificate IV in Engineering
  MEM

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