This comprehensive service manual is designed for professional technicians and provides in-depth information for repairing the Mitsubishi 4G3 Series engine. It offers a wealth of technical data, detailed illustrations, and step-by-step instructions to guide you through every aspect of engine repair, maintenance, and troubleshooting. The manual covers a wide range of topics, including engine specifications, component identification, disassembly and assembly procedures, adjustment settings, troubleshooting guides, and repair procedures. With its comprehensive coverage and detailed explanations, this manual is an invaluable resource for anyone working on Mitsubishi 4G3 Series engines, enabling them to perform repairs efficiently and effectively.

The Mitsubishi 4G3 series engine, a ubiquitous powerplant found in a wide variety of Mitsubishi cars and light commercial vehicles, is a testament to the company's engineering prowess. Introduced in 1978, this 1.3-liter to 1.6-liter four-cylinder engine is renowned for its reliability, simplicity, and affordability. The 4G3 series engine employed a SOHC (single overhead camshaft) design, with either 8 or 12 valves, depending on the specific model. It boasted a cast-iron block and aluminum cylinder head, ensuring durability and longevity. Across its various iterations, the 4G3 series showcased advancements such as fuel injection, variable valve timing, and multi-point injection systems, contributing to its popularity and widespread use in models like the Lancer, Colt, Mirage, and Pajero. The Mitsubishi 4G3 series engine's success can be attributed to its robust construction and user-friendly design. Its simple architecture, with fewer moving parts compared to more complex engines, contributed to its ease of maintenance and repairs. The engine's compact size and lightweight design made it well-suited for smaller vehicles, while its fuel efficiency and low operating costs made it an attractive choice for budget-conscious consumers. However, as emission regulations tightened, the 4G3 series gradually phased out, making way for more modern and efficient engines. Nevertheless, the 4G3 engine remains a significant part of Mitsubishi's automotive legacy, leaving behind a legacy of reliability and affordability that cemented its place as a stalwart of the automotive industry.