Assessment Requirements for AURTTM008 Dismantle and evaluate engine blocks and sub-assemblies

Release: 1

Assessment Requirements for AURTTM008 Dismantle and evaluate engine blocks and sub-assemblies

Modification History

Release	Comment
Release 1	New unit of competency.

Performance Evidence

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:

dismantle and evaluate the following three different engine blocks and their sub-assemblies:

in-line engine block

V configuration engine block

diesel engine block with sleeves.

Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to dismantling and evaluating engine blocks and sub-assemblies, including operational risk assessment and treatments associated with:

electrical equipment used in dismantling and evaluating engine blocks and sub-assemblies

manual and mechanical lifting and shifting equipment

toxic cleaning substances

environmental requirements, including procedures for trapping, storing and disposing of cleaning fluids released during the process

manual handling techniques, including those relating to:

using machinery for lifting engine blocks and engine components

using slings, chains and other lifting equipment according to safe work practices

dismantling methods and procedures, including:

reasons for selecting chosen tools, techniques and equipment

hazards and fluid control measures associated with removal of engines and engine components, including housekeeping

procedures for recording positions of components, including photographic evidence

pre-evaluation checks to determine suitability of component to be re-used

reasons for checking end float before disassembly

cleaning solutions and cleaning procedures for components

use of pullers, presses and specialised tools, and application of heat to dismantle components, including gears, pulleys and dowels

procedures for recording facing directions of pistons, connecting rods, main and big end caps, and positions of removable counterweights and counterweight shaft assemblies

precautions to be used when removing connecting rod cap

removing crankshaft and identifying main bearing caps that have lost register

removing dry and wet sleeves

dismantling pistons from connecting rods

removing camshaft bearings and balance/idler shaft bearings

removing welsh plugs and oil gallery plugs

removing diesel injection pumps

dismantling components that have seized, bent or broken, including seized stud and bolt removal

inspection, measurement and testing procedures, including:

characteristics of surface finishes and wear patterns as applied to:

cylinder bores, crankshafts, pistons, gears, cam followers, and camshafts

bearings and bushes

block facings

parting faces of connecting rod

main bearing caps

crack testing components

testing hardness of alloy cylinder blocks, pistons, crankshaft journals and camshaft followers

straightness of shafts

taper, ovality and wear of:

crankshaft and camshaft journals

main bearing and connecting rod tunnels

cylinder bores in conventional engine blocks and parent bores of engine blocks with dry sleeves

camshaft lobe lift

straightness of shafts

main bearing tunnels for alignment

connecting rod alignment and little end bore size

cylinder block flatness and deck height

piston ring land clearance, piston skirt wear and gudgeon pin to piston clearance

cylinder liner register in both the upper and lower parts of the cylinder block

oil pump for serviceability

idler gear hub to bearing clearance

requirements of Australian standards relevant to engine reconditioning, including:

AS 4182 Automotive repairs – Code of practice for reconditioning reciprocating spark ignition engines

AS 4427 Automotive repairs – Code of practice for reconditioning reciprocating compression ignition engines.

Assessment Conditions

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 engine blocks and sub-assemblies that they have dismantled and evaluated, 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:

automotive repair workplace or simulated workplace

workplace instructions

manufacturer engine specifications

AS 4182 Automotive repairs – Code of practice for reconditioning reciprocating spark ignition engines

AS 4427 Automotive repairs – Code of practice for reconditioning reciprocating compression ignition engines

three different multi-cylinder engine blocks specified in the performance evidence

precision measuring equipment, including:

dial bore gauges

dial indicators

inside and outside metric and imperial micrometers

fixed and portable hand, air and power tools and lifting equipment suitable for dismantling and evaluating engine blocks and sub-assemblies.

Links

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1

Companion Volume implementation guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b4278d82-d487-4070-a8c4-78045ec695b1