The Mitsubishi 4G3 Series Engine Service Repair Manual provides comprehensive instructions and detailed diagrams for maintaining and repairing your engine. This essential resource covers a wide range of topics, including engine specifications, special tool requirements, drive belt and timing belt maintenance, intake and exhaust manifold servicing, rocker arm and camshaft adjustments, cylinder head and valve procedures, front case, oil pump, and oil pan inspection, piston and connecting rod repair, crankshaft, flywheel and drive plate maintenance, and cylinder block troubleshooting. With clear step-by-step instructions and numerous illustrations, this manual empowers you to tackle repairs with confidence, regardless of your skill level.

The Mitsubishi 4G3 series engine is a family of four-cylinder gasoline engines produced by Mitsubishi Motors from 1978 to 2005. This robust and versatile engine series found widespread application in a variety of Mitsubishi vehicles, including the Lancer, Mirage, Colt, and Galant. The 4G3 series engines were designed with a cast-iron block and aluminum cylinder head, featuring a single overhead camshaft (SOHC) configuration. Initially, the engines were offered with a displacement of 1.2 liters, evolving over the years to encompass larger 1.3, 1.5, and 1.6-liter variants. These engines were known for their relatively simple design, reliability, and fuel efficiency.

The 4G3 series engines incorporated a number of technological advancements during their production run. Notably, the introduction of multi-point fuel injection (MPI) in the late 1980s significantly enhanced performance and fuel economy. Later iterations also featured variable valve timing (VVT) systems, further optimizing engine efficiency and power output. The 4G3 series engines were available with various transmission options, including manual, automatic, and CVT transmissions. They were widely praised for their durability and longevity, with many engines experiencing hundreds of thousands of miles without major issues. However, as with any engine, regular maintenance and proper care are crucial for optimal performance and lifespan.