This popular series features easy-to-understand yet thorough treatments of technical issues facing every boat owner, sail or power. Each volume is fully illustrated with photos and technical drawings. Author John C. Payne is one of the foremost international authorities and is the author of two major volumes on marine electronics. Book 4 in the series, Understanding Boat Diesel Engines includes discussion of the following subjects: fuel system maintenance; the function of filters; keeping the engine space cool; how to inspect a water pump impeller; the function of oil lubrication; engine layup; electrical troubleshooting checklist; testing the gauges; and much more.