This book is part of the fernhurst Essential Boat series, following that established format with good illustration and the use of colour throughout. Pat Manley is the resident guru for Practical boat owner magazine. He teaches courses on diesel engines , VHF and radar. The author deals comprehensively with the subject, looking at the fuel systems, cooling systems, electrics and propulsion systems, in addition to the mechanics of the diesel engine. There is a wealth of practical advice on the operation, maintenance, winterisation, restoration of marine diesels, together with a review of the skills and tools required to correctly work on this ubiquitous marine power plant. Many calls for help at sea relate to engine failures or problems with associated equipment. The troubleshooting guide will enable a sailor to deal with many of the problems that would otherwise develop into an emergency.