The diesel engine is the beating heart of your vessel, whether you cruise under power or sail. Arguably, a good running engine is your most important single piece of safety gear. Diesel engines are economical, long-lived and reliable, yet there are a number of ways in which they can fail. This seeming contradiction brings us to the distinction that has shaped the Online Marine Diesel Maintenance & Troubleshooting course.

The course is about being independent. It is designed to impart the mechanical know-how that participants need to venture past the sight of land or to destinations beyond the range of SeaTow. And even if you intend to do your boating close to home and plan to hire technicians for maintenance and repairs, this course has value.

Course segments address how to troubleshoot fuel, electrical, cooling and corrosion issues, etc., and describe how savvy maintenance can prevent these ancillary components from failing in the first place.