This comprehensive service repair manual provides detailed instructions for maintaining and servicing your MerCruiser GM V-6 262 CID (4.3L) marine engine, including Gen+ models. It covers a wide range of models, including MCM 4.3L Alpha, MCM 4.3LX Alpha, MCM 4.3LX Gen+ Alpha, MCM 4.3LXH Gen+ Alpha, MCM 262 Magnum EFI Gen+ Alpha, MCM 4.3LX Bravo, MCM 4.3LX Gen+ Bravo, MCM 4.3LXH Gen+ Bravo, and MCM 262 Magnum EFI Gen+ Bravo. The manual features detailed illustrations, exploded diagrams, drawings, and photos to guide you through each service repair procedure. You'll find everything you need for tune-ups, regular maintenance, or repairs. The content is organized into clearly defined sections, including: **Section 1: Important Information** This section covers general information, maintenance procedures, and troubleshooting tips. **Section 2: Removal and Installation** This section provides instructions for removing and installing various components, including MCM models with Alpha drives and Bravo drives. **Section 3: Engine** This section dives deep into the 262 CID / 4.3L engine, offering detailed information on its operation and maintenance. **Section 4: Electrical Systems** This section covers all aspects of your engine's electrical systems, including the starting system, ignition system, charging system, instrumentation, and wiring diagrams. **Section 5: Fuel System** This section provides detailed instructions for working on your fuel delivery system, including MerCarb 2 Barrel Carburetor, Weber 4 Barrel Carburetor, Electronic Fuel Injection (Throttle Body), and BSO / SAV Emission systems. **Section 6: Cooling System** This section covers both seawater cooled and closed cooled models, providing the specific instructions you need. **Section 7: Exhaust System** This section covers the exhaust system in detail, including manifolds, elbows, risers, and collectors. **Section 8: Power Steering** This section provides specific information on the power steering pump. With its clear layout, detailed information, and extensive visual aids, this manual is an invaluable resource for anyone who owns or maintains a MerCruiser GM V-6 262 CID (4.3L) marine engine.

The MerCruiser GM V-6 262 CID (4.3L) Marine Engine is a powerful and reliable powerplant designed specifically for marine applications. This engine, often referred to as the "4.3L" due to its displacement, is a popular choice for a wide range of boats, from smaller runabouts to larger cruisers and even some personal watercraft. The 262 cubic inch (4.3 liter) displacement denotes its size and power potential. MerCruiser, a division of Brunswick Corporation, is a renowned manufacturer of marine engines and stern drives, known for their quality and performance. The V-6 configuration, with its six cylinders arranged in a V-shape, provides a balance of smooth power delivery, efficiency, and compact size, making it ideal for marine applications. The MerCruiser GM V-6 262 CID (4.3L) engine boasts a long history and has evolved through numerous generations, each with its own specific features and enhancements. Common features include a cast iron block and aluminum cylinder heads, which offer durability and lightweight construction. The engine comes equipped with a variety of components specifically designed for marine use, such as a marine-grade alternator, a closed-cooling system, and corrosion-resistant materials. These features are crucial for ensuring reliable operation in the harsh environment of saltwater and freshwater applications. The engine's design also incorporates features like a single overhead cam (SOHC) configuration, a multi-port fuel injection system, and a spark ignition system, contributing to its performance and fuel efficiency. The #18 Service Repair Manual serves as a comprehensive guide for technicians and boat owners alike, providing detailed information on the engine's operation, maintenance, and repair procedures.