This comprehensive service and repair manual provides detailed instructions and high-quality diagrams for servicing and repairing Mercury Mercruiser Marine Engines Number 23 GM V8 454 CID (7.4L)/502 CID (8.2L) models manufactured between 1998 and 2001. The manual covers both Gen. VI and L-29 engines, including Sterndrive (MCM) and Inboard (MIE) configurations. The manual includes in-depth information on a wide range of topics, including: * **Important Information:** Essential guidance and safety precautions. * **Removal and Installation:** Step-by-step procedures for removing and installing major engine components. * **Engine:** Detailed descriptions and maintenance procedures for the engine's internal components. * **Electrical System:** Comprehensive coverage of the electrical wiring, components, and troubleshooting techniques. * **Fuel System:** Detailed information on fuel system components, operation, and troubleshooting. * **Cooling System:** Complete information on the cooling system, including maintenance and repair procedures. * **Exhaust System:** Detailed instructions for inspecting, maintaining, and repairing the exhaust system. * **Drives:** In-depth coverage of sterndrive units, including removal, installation, and repair. * **Power Steering:** Detailed explanations and maintenance procedures for the power steering system. This manual is a valuable resource for boat owners, mechanics, and anyone seeking to perform maintenance or repairs on these engines.

The Mercury Mercruiser Number 23 GM V8 454 CID (7.4L)/502 CID (8.2L) marine engine, produced from 1998 to 2000, is a powerful and reliable powerplant designed for a range of recreational and commercial marine applications. This engine is based on the renowned General Motors big-block V8 architecture, offering exceptional torque and power delivery. Featuring either a 7.4L (454 cubic inch) or 8.2L (502 cubic inch) displacement, both versions boast impressive horsepower and torque outputs, making them ideal for powering larger boats, cruisers, and performance vessels. These engines are known for their robust construction, featuring cast iron cylinder blocks and heads, providing durability and long-lasting performance. The Mercruiser Number 23 engine also incorporates advanced technologies including electronic fuel injection for precise fuel delivery and efficient combustion, a high-flow intake manifold for optimized airflow, and a sophisticated ignition system for reliable starts and smooth operation. The Mercury Mercruiser Number 23 GM V8 454 CID (7.4L)/502 CID (8.2L) marine engine is designed for ease of maintenance and servicing. The engine features readily accessible components and a modular design, enabling mechanics to quickly repair or replace parts as needed. This engine also includes various diagnostic systems, facilitating troubleshooting and ensuring optimal performance. The inclusion of a workshop service repair manual for the years 1998 to 2000 provides comprehensive information on engine components, operation, maintenance, and troubleshooting procedures for owners and mechanics. The manual offers detailed diagrams, schematics, and step-by-step instructions, empowering users to maintain and repair the engine effectively. If you're seeking a reliable, powerful, and well-documented marine engine, the Mercury Mercruiser Number 23 GM V8 454 CID (7.4L)/502 CID (8.2L) is an excellent choice for your boating needs.