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Independent revision aid only. It does not replace the RYA Diesel Engine Course, manufacturer manuals, or qualified mechanical advice.
Compass Revision course
Diesel Engine revision
Diesel engine revision for boat owners and skippers covering basic operation, checks, maintenance, spares, and troubleshooting.
Independent revision aid only. It does not replace the RYA Diesel Engine Course, manufacturer manuals, or qualified mechanical advice.
Syllabus map
What this course covers
How a Diesel Engine Works
FreeThe four-stroke cycle, compression ignition, fuel, air, cooling, lubrication, and exhaust.
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Daily Engine Checks
FreeOil, coolant, belts, hoses, leaks, fuel, water separator, stern gland, and exhaust water.
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Fuel System Problems
Fuel contamination, filters, water separators, bleeding, air leaks, and blocked supply.
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Cooling and Overheating
Raw water, fresh water, impellers, strainers, seacocks, alarms, and overheating response.
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Air, Exhaust, and Electrics
Air supply, exhaust restrictions, batteries, starter circuits, alternator charging, and warning lights.
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Servicing, Spares, and Tools
Service intervals, filters, belts, impellers, oil, coolant, tools, and onboard documentation.
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Diesel Troubleshooting
No start, starts then stops, overheating, smoke colours, vibration, alarms, and decision trees.
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Winterisation and Layup
Fuel, cooling, oil, batteries, belts, corrosion, ventilation, and recommissioning.
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