From John C. Payne, one of the foremost international authorities on marine electrical systems and electronics, comes an easy-to-understand yet thorough treatment of marine diesel engines and the technical issues facing every boat owner. Concise, compact, and fully illustrated for easy reference, Understanding Marine Diesels: 2nd Edition has been fully revised throughout. This guide offers a comprehensive coverage of marine diesel engine parts and what they do, checklists for regular engine care and maintenance as well as troubleshooting, and an overview of electrical systems. Text and illustrations address the following major topics:Basic diesel theoryFuel system maintenanceThe function of filtersHow to keep the engine coolHow to inspect a water pump impellerThe function of oil lubricationEngine operation and maintenanceEngine instrumentation systems