Table of contents
Task E-13 Diagnoses two-stroke and four-stroke engines
Task descriptor
Motorcycle technicians diagnose problems in two-stroke and four-stroke engines. They are required to have a comprehensive Knowledge of engine components and their operation to diagnose failures.
E-13.01 Diagnoses cylinder heads
E-13.01 Diagnoses cylinder heads
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.01.01P |
verify fault and failure conditions |
cylinder heads are inspected to determine faults and failure conditions by performing sensory inspections and using measuring tools |
| E-13.01.02P |
evaluate two-stroke cylinder heads |
two-stroke cylinder heads are evaluated according to manufacturers’ specifications for failure conditions by performing sensory inspections and using measuring tools |
| E-13.01.03P |
evaluate four-stroke cylinder heads |
four-stroke cylinder heads are evaluated according to manufacturers’ specifications for failure conditions by performing sensory inspections and using measuring tools |
| E-13.01.04P |
determine causes of wear or failure |
causes of wear or failure of cylinder head are determined according to interpretation of diagnostic results |
| E-13.01.05P |
determine servicing procedures |
servicing procedures are determined according to manufacturers’ specifications |
Range of variables
- failure conditions (two-stroke cylinder heads) include: cracking, warpage, leaks, carbon build-up, broken fasteners, failed gaskets, foreign object damage
- failure conditions (four-stroke cylinder heads) include: weak valve spring, warpage, valve guide and seat wear, valve sealing, foreign object damage
- sensory inspections include: listening for noises, feeling for vibrations, observing for wear and damage
- measuring tools include: surface plates, dyes, pressure and bore gauges
- causes of wear or failure include: insufficient lubrication, overheating
- servicing procedures include: resurface, replace
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.01.01L |
demonstrate Knowledge of cylinder heads, and their components, characteristics, applications and operation |
identify types of cylinder heads, and describe their characteristics and applications |
| identify cylinder head components, and describe their characteristics and applications |
| describe cylinder head operation |
| E-13.01.02L |
demonstrate Knowledge of procedures to diagnose cylinder heads |
identify measuring tools used to diagnose cylinder heads, and describe their procedures for use |
| describe procedures to inspect cylinder heads |
| describe procedures to diagnose cylinder heads |
| describe manufacturers’ servicing procedures for cylinder heads |
| describe workplace practices and procedures |
Range of variables
- cylinder head components include: valves, guides, decompressor, seals, fasteners
- types of cylinder heads include: air or liquid cooled, single or multi-valve
- measuring tools include: surface plates, dyes, pressure and bore gauges
- servicing procedures include: resurface, replace
E-13.02 Diagnoses valve systems on two-stroke engine
E-13.02 Diagnoses valve systems on two-stroke engine
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.02.01P |
verify fault and failure conditions |
valve system is inspected for faults and failure conditions by performing sensory inspections and using measuring tools |
| E-13.02.02P |
evaluate failure conditions |
failure conditions are evaluated by disassembling valve system |
| E-13.02.03P |
determine causes of wear or failure of valve system |
causes of wear or failure of valve system is determined according to interpretation of diagnostic results |
| E-13.02.04P |
determine servicing procedures |
servicing procedures are determined according to manufacturers’ specifications |
Range of variables
- failure conditions (two-stroke engine valve) include: cracking, warpage, leaks, carbon build-up, broken fasteners, failed gaskets, foreign object damage
- sensory inspections include: listening for noises, feeling for vibrations, observing for wear and damage
- measuring tools include: surface plates, dyes, pressure and bore gauges
- causes of wear or failure include: excessive lubricant, insufficient lubricant, over-rev
- servicing procedures are: clean, replace, adjust
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.02.01L |
demonstrate Knowledge of valve systems on two-stroke engines and their components, characteristics, applications and operation |
identify types of two-stroke valve systems, and describe their characteristics and applications |
| describe two-stroke valve system operation |
| E-13.02.02L |
demonstrate Knowledge of procedures to diagnose valve systems on two-stroke engines |
identify tools and equipment used to diagnose valve systems on two-stroke engines, and describe their procedures for use |
| describe procedures to inspect valve systems on two-stroke engines |
| describe procedures to diagnose valve systems on two-stroke engines |
| describe manufacturers’ servicing procedures for valve systems on two-stroke engines |
| describe workplace practices and procedures |
Range of variables
- types of two-stroke valve systems include: reed valves, rotary valve, piston port, power valve actuators
- servicing procedures are: clean, replace, adjust
E-13.03 Diagnoses valve train on four-stroke engine
E-13.03 Diagnoses valve train on four-stroke engine
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.03.01P |
verify fault and failure conditions |
valve train is inspected for faults and failure conditions by performing sensory inspections and using measuring tools |
| E-13.03.02P |
confirm function |
function is confirmed by checking valve train |
| E-13.03.03P |
evaluate failure conditions |
failure conditions are evaluated by disassembling valve train |
| E-13.03.04P |
determine causes of wear or failure of valve train |
causes of wear or failure of valve train are determined according to interpretation of diagnostic results |
| E-13.03.05P |
determine servicing procedures |
servicing procedures are determined according to manufacturers’ specifications and procedures |
Range of variables
- failure conditions include: wear or failure of tensioners, valve stems, lifters
- sensory inspections include: listening for noises, feeling for vibrations, observing for wear and damage
- measuring tools include: surface plates, dyes, pressure and bore gauges
- function includes: valve timing, valve lash, cam lobe wear
- causes of wear or failure include: insufficient lubricant, overheating, over-rev
- servicing procedures include: replace tensioner, chain, guide, valve and lifter
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.03.01L |
demonstrate Knowledge of valve train on four-stroke engines and their components, characteristics, applications and operation |
identify valve train on four-stroke engines, and describe their characteristics and applications |
| identify four-stroke valve train components, and describe their characteristics and applications |
| describe four-stroke valve train operation |
| E-13.03.02L |
demonstrate Knowledge of procedures to diagnose valve train on four-stroke engines |
identify tools and equipment used to diagnose valve train on four-stroke engines, and describe their procedures for use |
| describe procedures to inspect valve train on four-stroke engines |
| describe procedures to diagnose valve train on four-stroke engines |
| describe manufacturers’ servicing procedures for valve train on four-stroke engines |
| describe workplace practices and procedures |
Range of variables
- four-stroke valve train components include: valves, gears, cams, rockers, chains, belts
- servicing procedures include: replace tensioner, chain, guide, valve and lifter
E-13.04 Diagnoses cylinders and pistons
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.04.01P |
verify fault and failure conditions |
cylinders and pistons are inspected for faults and failure conditions by performing sensory inspections and using measuring tools |
| E-13.04.02P |
verify integrity of sealing |
integrity of sealing is verified by checking piston, piston rings and cylinder using measuring tools |
| E-13.04.03P |
measure piston and cylinder wall clearance |
piston and cylinder wall clearance is measured by disassembling cylinder and piston |
| E-13.04.04P |
determine causes of wear or failure of piston, cylinder or rings |
causes of wear or failure of piston, cylinder or rings are determined according to interpretation of diagnostic results |
| E-13.04.05P |
determine servicing procedures |
servicing procedures are determined according to manufacturers’ specifications |
Range of variables
- failure conditions include: ring wear, piston cracking, detonation
- sensory inspections include: looking for excessive smoke from exhaust, listening for noises, feeling for vibrations, observing for excessive wear and lack of power
- measuring tools include: surface plates, dyes, pressure and bore gauges
- causes of wear or failure include: insufficient air filtration, insufficient lubricant, overheating
- servicing procedures include: bore, hone, re-plate, replace
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.04.01L |
demonstrate Knowledge of cylinders and pistons components, and their characteristics, applications and operation |
identify cylinders and piston components, and describe their characteristics and applications |
| identify types of cylinder materials, and describe their characteristics and applications |
| identify types of pistons, and describe their characteristics and applications |
| describe cylinder and piston operation |
| E-13.04.02L |
demonstrate Knowledge of procedures to diagnose cylinders and pistons |
identify tools and equipment used to diagnose cylinders and pistons, and describe their procedures for use |
| describe procedures to inspect cylinders and pistons |
| describe procedures to diagnose cylinders and pistons |
| describe manufacturers’ servicing procedures for cylinders and pistons |
| describe workplace practices and procedures |
Range of variables
- piston components include: wrist pins, circlips, rings
- types of cylinder materials include: cast iron, plated, aluminum, composite
- types of pistons include: cast, forged
- servicing procedures include: bore, hone, re-plate, replace
E-13.05 Diagnoses crankshaft assembly
E-13.05 Diagnoses crankshaft assembly
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.05.01P |
verify fault and failure conditions |
crankshaft assembly is inspected for fault and failure conditions by performing sensory inspections and using measuring and diagnostic tools |
| E-13.05.02P |
evaluate failure conditions |
failure conditions are evaluated by checking crankshaft assembly using measuring and diagnostic tools |
| E-13.05.03P |
determine causes of abnormal wear or failure |
causes of abnormal wear or failure of crankshaft are determined according to interpretation of diagnostic results |
| E-13.05.04P |
determine servicing procedures |
servicing procedures are determined according to manufacturers’ specifications |
Range of variables
- failure conditions include: bearing wear, run-out, twisting, out-of-phase
- sensory inspections include: listening for noises, feeling for vibrations
- measuring and diagnostic tools include: v-blocks, micrometers, plastigage, dial indicators, stethoscopes, feeler gauge
- causes of abnormal wear or failure include: insufficient lubricant, over-rev, overheating, detonation
- servicing procedures include: re-build, replace
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.05.01L |
demonstrate Knowledge of crankshaft assembly and their components, characteristics, applications and operation |
identify types of crankshaft assemblies, and describe their characteristics and applications |
| identify crankshaft components, and describe their characteristics and applications |
| describe crankshaft operation |
| E-13.05.02L |
demonstrate Knowledge of procedures to diagnose crankshaft assembly |
identify measuring and diagnostic tools used to diagnose crankshaft assembly, and describe their procedures for use |
| describe procedures to inspect crankshaft assembly |
| describe procedures to diagnose crankshaft assembly |
| describe manufacturers’ servicing procedures for crankshaft assembly |
| describe workplace practices and procedures |
Range of variables
- crankshaft assemblies include: roller, plain bearing, single and multi-cylinder, forged, pressed
- crankshaft components include: connecting rods, labyrinth seals, flywheels, thrust washers, wrist pin bearings
- measuring and diagnostic tools include: v-blocks, micrometers, plastigage, dial indicators, stethoscopes, feeler gauge
- servicing procedures include: re-build, replace
E-13.06 Diagnoses counterbalance assemblies
E-13.06 Diagnoses counterbalance assemblies
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.06.01P |
verify fault and failure conditions |
counterbalance assemblies are inspected for fault and failure conditions by performing sensory inspections and using measuring and diagnostic tools |
| E-13.06.02P |
evaluate failure conditions |
failure conditions are evaluated by checking counterbalance assemblies using measuring and diagnostic tools |
| E-13.06.03P |
determine causes of wear or failure |
causes of wear or failure of counterbalance assemblies are determined according to interpretation of diagnostic results |
| E-13.06.04P |
determine servicing procedures |
servicing procedures are determined according to manufacturers’ specifications and procedures |
Range of variables
- failure conditions include: run-out, out-of-time, excessive bearing clearance
- sensory inspections include: listening for noises, feeling for vibrations, looking for signs of abnormal wear
- measuring and diagnostic tools include: dial indicators, stethoscopes, v-blocks, micrometers, plastigage
- causes of wear or failure include: insufficient lubricant, chain wear, chain tension
- servicing procedures are: re-time, replace, adjust balancer
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.06.01L |
demonstrate Knowledge of counterbalance assemblies and their components, characteristics, applications and operation |
identify types of counterbalance assemblies, and describe their characteristics and applications |
| identify counterbalance components, and describe their characteristics and applications |
| describe counterbalance operation |
| E-13.06.02L |
demonstrate Knowledge of procedures to diagnose counterbalance assemblies |
identify measuring and diagnostic tools to diagnose counterbalance assemblies, and describe their procedures for use |
| describe procedures to diagnose counterbalance assemblies |
| describe manufacturers’ servicing procedures for counterbalance assemblies |
| describe workplace practices and procedures |
Range of variables
- counterbalance assemblies include: gear or chain driven, bearings, single or multi-counterweights
- measuring and diagnostic tools include: dial indicators, stethoscopes, v-blocks, micrometers, plastigage
- servicing procedures are: re-time, replace, adjust balancer
E-13.07 Diagnoses engine cases
E-13.07 Diagnoses engine cases
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.07.01P |
inspect engine cases |
engine cases are inspected for failure conditions by performing sensory inspections |
| E-13.07.02P |
inspect for failure conditions |
failure conditions are inspected by checking engine cases using measuring and diagnostic tools |
| E-13.07.03P |
check crankcase sealing |
crankcase sealing is checked by using measuring and diagnostic tools |
| E-13.07.04P |
determine causes of failure of engine cases |
causes of failure of engine cases are determined according to interpretation of diagnostic results |
| E-13.07.05P |
determine servicing procedures |
servicing procedures are determined according to manufacturers’ specifications and procedures |
Range of variables
- failure conditions include: warping, cracking, structural integrity, excessive bearing clearance
- sensory inspections include: listening for noises, feeling for vibrations, observing for oil leaks, cracks, loose or broken fasteners
- measuring and diagnostic tools include: surface plates, dyes, sealing plugs, gauges (pressure, bore, vacuum)
- causes of failure include: insufficient lubricant, overheating, incorrect fastener torque
- servicing procedures are: replace thread, weld, replace engine case
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.07.01L |
demonstrate Knowledge of engine cases and their components, characteristics and applications |
identify types of engine cases, and describe their characteristics and applications |
| identify engine case components, and describe their characteristics and applications |
| describe engine case function |
| E-13.07.02L |
demonstrate Knowledge of procedures to diagnose engine cases |
identify measuring and diagnostic tools to diagnose engine cases, and describe their procedures for use |
| describe procedures to inspect engine cases |
| describe procedures to diagnose engine cases |
| describe manufacturers’ servicing procedures for engine cases |
| describe workplace practices and procedures |
Range of variables
- types of engine cases include: single or multi-cylinder, vertical or horizontal split
- engine case components include: bearing bosses, covers, case seals, fasteners
- measuring and diagnostic tools include: surface plates, dyes, sealing plugs, gauges (pressure, bore, vacuum)
- servicing procedures are: replace thread, weld, replace engine case
E-13.08 Diagnoses lubrication system
E-13.08 Diagnoses lubrication system
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.08.01P |
inspect lubrication system |
lubrication system is inspected for failure conditions by performing sensory inspections |
| E-13.08.02P |
check lubrication system |
lubrication system is checked for failure conditions using an oil pressure gauge |
| E-13.08.03P |
check integrity of delivery pipes and jets |
integrity of delivery pipes and jets are checked visually for adequate flow |
| E-13.08.04P |
check adjustment of two-stroke engine oil pump |
adjustment of two-stroke engine oil pump is checked for volume using measuring and diagnostic tools |
| E-13.08.05P |
check oil pump |
oil pump is checked for wear or failure using measuring and diagnostic tools and sensory inspections |
Range of variables
- failure conditions include: low, high or no oil pressure
- sensory inspections include: listening for noises, feeling for vibrations, observing for oil leaks, incorrect oil type
- measuring and diagnostic tools include: feeler gauges, micrometers, graduated cylinders, dyes
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.08.01L |
demonstrate Knowledge of lubrication systems and their components, characteristics, applications and operation |
identify lubrication systems, and describe their components, characteristics and applications |
| describe lubrication system operation |
| E-13.08.02L |
demonstrate Knowledge of procedures to diagnose lubrication systems |
identify measuring and diagnostic tools used to diagnose lubrication systems, and describe their procedures for use |
| describe procedures to inspect lubrication systems |
| describe procedures to diagnose lubrication systems |
| describe manufacturers’ servicing procedures for lubrication systems |
| describe workplace practices and procedures |
Range of variables
- lubrication systems include: intake injection, positive bearing injection, wet sump, dry sump
- lubrication system components include: pumps, oil tanks, filters, oil coolers, lines, check valves
- measuring and diagnostic tools include: feeler gauges, micrometers, graduated cylinders, dyes
- servicing procedures are: replace, verify operation, adjust, clean
E-13.09 Diagnoses cooling system
E-13.09 Diagnoses cooling system
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-13.09.01P |
inspect cooling system |
cooling system is inspected for failure conditions by performing sensory inspections |
| E-13.09.02P |
check cooling system |
cooling system is checked for failure conditions using measuring and diagnostic tools |
| E-13.09.03P |
determine causes of failure of cooling function |
causes of failure of cooling function are determined according to interpretation of diagnostic results |
| E-13.09.04P |
determine servicing procedures |
servicing procedures are determined according to manufacturers’ specifications and procedures |
Range of variables
- cooling systems include: air, liquid-cooled (oil, coolant)
- failure conditions include: improper coolant, leaks, damaged components
- sensory inspections include: listening for noises, fan operation, coolant leaks
- measuring and diagnostic tools include: cooling system pressure gauges, infrared thermometer, refractometer
- causes of failure include: insufficient air or coolant flow, incorrect coolant mix, inoperable fan or failed thermostat
- servicing procedures are: flush and replace coolant
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-13.09.01L |
demonstrate Knowledge of cooling systems and their components, characteristics, applications and operation |
identify cooling systems, and describe their characteristics and applications |
| identify cooling system components, and describe their characteristics and applications |
| describe cooling system operation |
| E-13.09.02L |
demonstrate Knowledge of procedures to diagnose cooling system |
identify measuring and diagnostic tools used to diagnose cooling system, and describe their procedures for use |
| describe procedures to inspect cooling system |
| describe procedures to diagnose cooling system |
| describe manufacturers’ servicing procedures for cooling system |
| describe workplace practices and procedures |
Range of variables
- cooling systems include: air, liquid-cooled (oil, coolant)
- cooling system components include: pumps, lines, seals, radiators, cooling fins, thermostats, thermostatic switches, heat exchanger
- measuring and diagnostic tools include: cooling system pressure gauges, infrared thermometer, refractometer
- servicing procedures are: flush and replace coolant
Task E-14 Services two-stroke and four-stroke engines
Task descriptor
Motorcycle technicians service components in two-stroke and four-stroke engines. Two-stroke engines have fewer moving parts and therefore have fewer components to maintain.
E-14.01 Services cylinder heads on four-stroke engine
E-14.01 Services cylinder heads on four-stroke engine
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.01.01P |
verify mating surface |
mating surface returned from machining is verified using measuring tools |
| E-14.01.02P |
replace cylinder head components |
cylinder head components are replaced according to manufacturers’ procedures |
| E-14.01.03P |
perform decarbonization |
decarbonization is performed using equipment |
| E-14.01.04P |
set tolerances |
tolerances are set according to manufacturers’ specifications |
| E-14.01.05P |
replace cylinder head |
cylinder head is replaced using tools |
| E-14.01.06P |
confirm operation |
operation is confirmed by a functional test according to manufacturers’ specifications |
Range of variables
- measuring tools include: surface plate, straightedge
- cylinder head components include: valves, guides, decompressor, seals
- equipment includes: wire brush, abrasive pad, glass bead cleaners, hydraulic presses
- tools include: torque wrenches, socket set, pullers
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.01.01L |
demonstrate Knowledge of cylinder heads and their components, characteristics, applications and operation |
identify cylinder heads, and describe their characteristics and applications |
| identify cylinder head components, and describe their characteristics and applications |
| describe cylinder head operation |
| E-14.01.02L |
demonstrate Knowledge of procedures to service cylinder heads |
identify tools and equipment used to service cylinder heads, and describe their procedures for use |
| describe manufacturers’ servicing procedures for cylinder heads |
| describe workplace practices and procedures |
Range of variables
- cylinder heads include: air or liquid cooled, single or multi-valve
- cylinder head components include: valves, guides, decompressor, seals
- tools include: torque wrenches, socket set, pullers
- equipment includes: wire brush, abrasive pad, glass bead cleaners, hydraulic presses
- servicing procedures include: decarbonize, replace
E-14.02 Services valve systems on two-stroke engine
E-14.02 Services valve systems on two-stroke engine
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.02.01P |
clean valve assemblies |
valve assemblies are cleaned according to manufacturers’ specifications and procedures using equipment |
| E-14.02.02P |
replace damaged or worn parts |
damaged or worn parts are replaced according to manufacturers’ procedures using tools |
| E-14.02.03P |
set tolerances |
tolerances are set according to manufacturers’ specifications |
| E-14.02.04P |
confirm operation |
operation is confirmed by functional test according to manufacturers’ specifications and procedures |
Range of variables
- equipment includes: wire brush, abrasive pad, glass bead cleaners
- tools include: pullers, hand tools
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.02.01L |
demonstrate Knowledge of valve systems on two-stroke engines and their components, characteristics, applications and operation |
identify two-stroke valve systems, and describe their characteristics and applications |
| identify two-stroke valve system components, and describe their characteristics and applications |
| describe two-stroke valve system operation |
| E-14.02.02L |
demonstrate Knowledge of procedures to service valve systems on two-stroke engines |
identify tools and equipment used to service valve systems on two-stroke engines, and describe their procedures for use |
| describe manufacturers’ servicing procedures for valve systems on two-stroke engines |
| describe workplace practices and procedures |
Range of variables
- two-stroke valve systems include: reed valve, rotary valve, piston port, power valve
- two-stroke valve system components include: reeds, rotary valves, power valve actuators
- tools include: pullers, hand tools
- equipment includes: wire brush, abrasive pad, glass bead cleaners
- servicing procedures include: clean, replace
E-14.03 Services valve train on four-stroke engine
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.03.01P |
clean valve train components |
valve train components are cleaned according to manufacturers’ procedures using equipment |
| E-14.03.02P |
replace components |
components are replaced according to manufacturers’ procedures |
| E-14.03.03P |
replace valve train components |
valve train components are replaced according to manufacturers’ procedures using tools |
| E-14.03.04P |
set tolerances |
tolerances are set according to manufacturers’ specifications and procedures |
| E-14.03.05P |
confirm operation |
operation is confirmed by functional test according to manufacturers’ specifications and procedures |
Range of variables
- equipment includes: wire brush, abrasive pad, glass bead cleaners
- components include: valves, gears, cams, rockers, chains, belts, springs
- tools include: valve grinders, valve and seat cutters, spring compressors, torque wrenches
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.03.01L |
demonstrate Knowledge of valve train on four-stroke engines and their components, characteristics, applications and operation |
identify valve train on four-stroke engines, and describe their characteristics and applications |
| identify four-stroke valve train components, and describe their characteristics and applications |
| describe four-stroke valve train operation |
| E-14.03.02L |
demonstrate Knowledge of procedures to service valve train on four-stroke engines |
identify tools used to service valve train on four-stroke engines, and describe their procedures for use |
| describe manufacturers’ servicing procedures for valve train on four-stroke engines |
| describe workplace practices and procedures |
Range of variables
- components include: valves, gears, cams, rockers, chains, belts, springs
- tools include: valve grinders, valve and seat cutters, spring compressors, torque wrenches
- servicing procedures include: replace tensioner or chain
E-14.04 Services cylinders and pistons
E-14.04 Services cylinders and pistons
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
yes |
NV |
ND |
yes |
ND |
ND |
NV |
yes |
ND |
ND |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.04.01P |
replace cylinder and piston components |
cylinder and piston components are replaced according to manufacturers’ specifications using specialty tools |
| E-14.04.02P |
confirm fit of piston, cylinder or rings |
piston, cylinder or rings are replaced and fit is confirmed according to manufacturers’ specifications and procedures using measuring tools |
Range of variables
- piston components include: wrist pins, circlips, rings
- specialty tools include: wrist pin puller, ring compressors
- measuring tools include: micrometer, bore gauges, feeler gauges
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.04.01L |
demonstrate Knowledge of cylinders, pistons, and their components, characteristics, applications and operation |
identify piston components, and describe their characteristics and applications |
| identify types of cylinder materials, and describe their characteristics and applications |
| identify types of pistons, and describe their characteristics and applications |
| describe cylinder and piston operation |
| E-14.04.02L |
demonstrate Knowledge of procedures to service cylinder and pistons |
identify specialty tools used to service cylinder and pistons, and describe their procedures for use |
| describe manufacturers’ servicing procedures for cylinder and pistons |
| describe workplace practices and procedures |
Range of variables
- piston components include: wrist pins, circlips, rings
- types of cylinder materials include: cast iron, plated, aluminum
- types of pistons include: cast, forged
- specialty tools include: wrist pin puller, ring compressors
- servicing procedures include: repair, replace
E-14.05 Services crankshaft assembly
E-14.05 Services crankshaft assembly
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
yes |
NV |
ND |
yes |
ND |
ND |
NV |
yes |
ND |
ND |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.05.01P |
check reconditioned or replacement crankshaft assemblies |
reconditioned or replacement crankshaft assemblies are checked for defects according to manufacturers’ specifications |
| E-14.05.02P |
replace crankshaft assemblies |
crankshaft assemblies are replaced according to manufacturers’ specifications using tools |
| E-14.05.03P |
set tolerances |
tolerances are set according to manufacturers’ specifications |
Range of variables
- crankshaft assemblies include: roller, plain bearing, single and multi-cylinder, forged, pressed
- tools include: pullers, bore gauges, feeler gauges, plastigages
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.05.01L |
demonstrate Knowledge of crankshaft assemblies and their components, characteristics, applications and operation |
identify crankshaft assemblies, and describe their characteristics and applications |
| identify crankshaft assembly components, and describe their characteristics and applications |
| describe crankshaft operation |
| E-14.05.02L |
demonstrate Knowledge of procedures to service crankshaft assemblies |
identify tools and equipment used to service crankshaft assemblies, and describe their procedures for use |
| describe manufacturers’ servicing procedures for crankshaft assemblies |
| describe workplace practices and procedures |
Range of variables
- crankshaft assemblies include: roller, plain bearing, single and multi-cylinder, forged, pressed
- crankshaft assembly components include: connecting rods, labyrinth seals, flywheels, thrust washers, bearings
- tools include: pullers, bore gauges, feeler gauges, plastigages
- servicing procedures include: repair, replace
E-14.06 Services counterbalance assemblies
E-14.06 Services counterbalance assemblies
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
yes |
NV |
ND |
yes |
ND |
ND |
NV |
yes |
ND |
ND |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.06.01P |
replace counterbalance shafts and bearings |
counterbalance shafts and bearings are replaced using tools |
| E-14.06.02P |
set tolerances and timing |
tolerances and timing are set according to manufacturers’ specifications and procedures |
Range of variables
- tools include: pullers, bore gauges, feeler gauges, plastigage
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.06.01L |
demonstrate Knowledge of counterbalance assemblies and their components, characteristics, applications and operation |
identify counterbalance assemblies, and describe their characteristics and applications |
| identify counterbalance assembly components, and describe their characteristics and applications |
| describe counterbalance operation |
| E-14.06.02L |
demonstrate Knowledge of procedures to service counterbalance assemblies |
identify tools used to service counterbalance assemblies, and describe their procedures for use |
| describe manufacturers’ servicing procedures for counterbalance assemblies |
| describe workplace practices and procedures |
Range of variables
- counterbalance assemblies include: gear or chain driven, single or multi-counterweights
- counterbalance assembly components include: gears, chains, bearings
- tools include: pullers, bore gauges, feeler gauges, plastigage
- servicing procedures include: time or replace balancer, adjust backlash
E-14.07 Services engine cases
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
yes |
NV |
ND |
yes |
ND |
ND |
NV |
yes |
ND |
ND |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.07.01P |
replace engine cases |
engine cases are replaced using tools |
| E-14.07.02P |
replace bearings and seals |
bearings and seals are replaced according to manufacturers’ specifications and procedures |
| E-14.07.03P |
torque fasteners |
fasteners are torqued according to manufacturers’ specifications and procedures |
Range of variables
- tools include: pullers, drivers
- fasteners include: bolts, studs
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.07.01L |
demonstrate Knowledge of engine cases and their components, characteristics and applications |
identify engine cases, and describe their characteristics and applications |
| identify engine case components, and describe their characteristics and applications |
| describe engine case function |
| E-14.07.02L |
demonstrate Knowledge of procedures to service engine cases |
identify tools used to service engine cases, and describe their procedures for use |
| describe manufacturers’ servicing procedures for engine cases |
| describe workplace practices and procedures |
Range of variables
- engine cases include: single or multi-cylinder, vertical or horizontal split
- engine case components include: bearings, bearing bosses, covers, case seals, threads
- tools include: pullers, drivers
- servicing procedures include: repair threads, replace bearings
E-14.08 Services lubrication system
E-14.08 Services lubrication system
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
yes |
NV |
ND |
yes |
ND |
ND |
NV |
yes |
ND |
ND |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.08.01P |
clean components |
components are cleaned according to manufacturers’ procedures |
| E-14.08.02P |
replace components |
components are replaced according to manufacturers’ procedures using tools |
| E-14.08.03P |
adjust oil flow rate |
oil flow rate is set according to manufacturers’ specifications and procedures |
Range of variables
- components include: check valves, pipes, jets, oil galleries, pumps, gears, rotors, bearings, chains
- tools include: pullers, torque wrenches, feeler gauges
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.08.01L |
demonstrate Knowledge of lubrication systems and their components, characteristics, applications and operation |
identify lubrication systems, and describe their characteristics and applications |
| identify lubrication system components, and describe their characteristics and applications |
| describe lubrication system operation |
| E-14.08.02L |
demonstrate Knowledge of procedures to service lubrication systems |
identify tools used to service lubrication systems, and describe their procedures for use |
| describe manufacturers’ servicing procedures for lubrication systems |
| describe workplace practices and procedures |
Range of variables
- lubrication systems include: intake injection, positive bearing injection, wet sump, dry sump
- lubrication system components include: pumps, oil tanks, filters, oil coolers, lines, cables
- tools include: pullers, torque wrenches, feeler gauges
- servicing procedures include: replace, adjust, clean
E-14.09 Services cooling system
E-14.09 Services cooling system
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
yes |
NV |
ND |
yes |
ND |
ND |
NV |
yes |
ND |
ND |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| E-14.09.01P |
mix coolant |
coolant is mixed according to manufacturers’ specifications |
| E-14.09.02P |
flush and refill cooling system |
cooling system is flushed and refilled according to manufacturers’ procedures using equipment |
| E-14.09.03P |
remove airflow obstructions |
airflow obstructions are removed using methods according to manufacturers’ procedures |
| E-14.09.04P |
replace cooling system components |
cooling system components are replaced according to manufacturers’ procedures using tools |
| E-14.09.05P |
repair cooling system components |
cooling system components are repaired according to manufacturers’ procedures |
Range of variables
- cooling systems include: air, liquid-cooled (oil, coolant)
- equipment includes: coolant recovery systems, flushing system
- methods include: cleaning, combing
- cooling system components include: pumps, lines, seals, radiators, cooling fins, thermostats, fans, ducts, shrouds, heat exchangers
- tools include: pullers, drivers, funnels, hoses
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| E-14.09.01L |
demonstrate Knowledge of cooling systems and their components, characteristics, applications and operation |
identify cooling systems, and describe their characteristics and applications |
| identify cooling system components, and describe their characteristics and applications |
| describe cooling system operation |
| E-14.09.02L |
demonstrate Knowledge of procedures to service cooling systems |
identify tools and equipment used to service cooling systems, and describe their procedures for use |
| describe manufacturers’ servicing procedures for cooling systems |
| describe workplace practices and procedures |
Range of variables
- cooling systems include: air, liquid-cooled (oil, coolant)
- cooling system components include: pumps, lines, seals, radiators, cooling fins, thermostats, fans, ducts, shrouds, heat exchangers
- tools include: pullers, drivers, funnels, hoses
- equipment includes: coolant recovery systems, flushing system
- servicing procedures include: replace pump or thermostat, service coolant, clean radiator