The RYA Diesel Engine Maintenance Course is a practical, hands-on one-day course designed to give boaters the confidence and knowledge to take care of their marine diesel engines. The course focuses on understanding how a diesel engine works, recognising early signs of problems and carrying out simple maintenance tasks that help prevent breakdowns. Students begin by learning the basic principles of diesel engine operation, including fuel systems, cooling systems, lubrication, air intake, exhaust, and electrical components. The aim is not to turn participants into engineers, but to demystify the engine and help them identify what is normal, what is not, and what action to take.
A major part of the course involves routine maintenance. Learners are shown how to carry out essential checks such as oil levels, coolant levels, fan belts, raw water strainers, filters and battery condition. They also learn how to bleed the fuel system, change filters, and diagnose common faults such as overheating, poor starting or abnormal noises. Safety is emphasised throughout, including safe working practices, fuel handling, and isolation procedures. By the end of the day, students gain the confidence to look after their engines, reduce the risk of failure and handle minor issues afloat.
The RYA Diesel Engine Maintenance Course is aimed at anyone who owns or operates a boat powered by an inboard diesel engine. It is ideal for new boat owners, cruising sailors, motorboaters, RIB users with diesel inboards, and anyone wanting to be more self-reliant on the water. It is also valuable for crew members, flotilla sailors, and those preparing for longer passages where external assistance may not be available. No prior mechanical experience is required; the course is designed for complete beginners as well as those wishing to refresh their skills. Ultimately, it helps boaters stay safe, save money on avoidable repairs, and ensure their vessel remains reliable at sea.
The RYA Diesel Engine Maintenance course is arranged on demand. For many boat users we end up running these as bespoke courses with time spent in the classroom then time spent with you on your boat looking at how we put everything into practice on your specific vessel – this is a really great option.
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