SELOC Marine maintenance and repair manuals offer the most comprehensive, authoritative information available for outboard, inboard, stern-drive and diesel engines, as well as personal watercraft. Mercruiser Sterndrive maintenance and repair manuals by SELOC offer the most comprehensive, authoritative information available. SELOC has been the leading source of how-to information with easy, step-by-step guidance since 1974. Designed and written to serve the needs of the professional mechanic, do-it-yourself boat enthusiast, instructor and student, these manuals are based on actual teardowns done by Seloc Marine editors/authors in our on-site facility. Providing complete coverage on everything from basic maintenance to engine overhaul.