This manual covers the Mercruiser GM V8 454/482/540 CID Marine Engine models manufactured between 1985 and 1988. These V8 engines, available in 454, 482, and 540 cubic inch displacements, are designed for marine applications and utilize gasoline fuel with electronic ignition. They are known for their robust engineering and reliable performance, providing significant power output, with variants of the 454 CID engine typically producing between 330 and 365 horsepower. The engines are compatible with various Mercruiser sterndrive and inboard transmissions, such as the Alpha One and Bravo One series.

This comprehensive Service Repair Workshop Manual in English provides essential information for maintaining and repairing your Mercruiser GM V8 engine. It details critical procedures, technical specifications, and troubleshooting guidance. Key areas covered include engine configuration, fuel and ignition systems, cooling methods (raw water or closed systems), electrical starting systems, and emission controls relevant to the specified model years. The manual also offers insights into maintenance schedules, fluid capacities, and recommended lubricants, ensuring optimal performance and longevity of your marine engine.