The Mitsubishi 4D68 Series Engine Service Repair Manual provides detailed instructions and comprehensive information for servicing and repairing this popular engine series. This manual is a valuable resource for mechanics, technicians, and DIY enthusiasts alike, offering a wealth of knowledge to help you tackle a wide range of repair tasks.

Dive into the intricacies of the 4D68 engine with this comprehensive guide, featuring detailed sections covering every aspect of the engine's construction and operation. The manual includes detailed specifications, illustrations, and step-by-step instructions to guide you through every repair procedure.

The manual covers a wide array of topics, including:

* **General Information:** Get a comprehensive overview of the 4D68 engine, including its specifications, special tools required, and critical maintenance information.
* **Drive Belt & Glow Plug:** Learn how to inspect, adjust, and replace the drive belt and glow plug system, ensuring optimal engine performance in all conditions.
* **Timing Belt:** Master the intricacies of timing belt replacement, a crucial procedure for maintaining engine synchronization and reliability.
* **Glow Plug, Fuel Injection Pump, and Injection Nozzle:** Gain in-depth knowledge of these critical components, allowing you to diagnose and repair fuel injection system issues effectively.
* **Intake and Exhaust Manifolds:** Understand the function and maintenance of the intake and exhaust manifolds, ensuring optimal airflow and engine performance.
* **Water Pump, Thermostat, Hose, and Pipes:** Explore the cooling system, learning how to inspect, maintain, and repair the water pump, thermostat, and associated hoses and pipes.
* **Rocker Arms, Rocker Shaft, and Camshaft:** Delve into the valve train system, learning how to diagnose and repair problems with rocker arms, rocker shaft, and camshaft components.
* **Cylinder Head, Valves, and Valve Springs:** Understand the intricate workings of the cylinder head, valves, and valve springs, enabling you to perform repairs related to head gasket replacement, valve adjustments, and spring inspections.
* **Front Case, Counterbalance Shafts, and Oil Pan:** Learn about the essential components of the engine's lower end, including the front case, counterbalance shafts, and oil pan, allowing you to address issues related to oil leaks and component failures.
* **Pistons and Connecting Rods:** Gain knowledge of the piston and connecting rod assembly, enabling you to diagnose and repair problems related to piston ring wear, connecting rod bearing failures, and other piston-related issues.
* **Crankshaft, Cylinder Block, and Flywheel:** Explore the foundation of the engine, understanding the crankshaft, cylinder block, and flywheel, allowing you to perform repairs related to crankshaft bearings, cylinder bore wear, and flywheel replacement.

The Mitsubishi 4D68 Series Engine Service Repair Manual offers a wealth of information, helping you maintain and repair your engine efficiently and effectively. Whether you are a seasoned mechanic or a DIY enthusiast, this manual provides the knowledge and guidance you need to keep your 4D68 engine running smoothly for years to come.

The Mitsubishi 4D68 series engine is a robust and reliable diesel powerplant that has found its way into a wide array of Mitsubishi vehicles, both passenger and commercial. This 4-cylinder, 2.8-liter (2771 cc) engine boasts a cast iron block, single overhead camshaft (SOHC) design, and direct-injection fuel system. Its compact size and relatively simple design make it efficient and easy to maintain, earning it a reputation for durability and longevity. The 4D68 series engines have seen various iterations throughout its production run, with different versions finding application in vehicles like the Pajero, Delica, L200, and Canter. Its versatility and impressive torque output have made it a popular choice for off-road vehicles and commercial trucks. Despite its age, the 4D68 engine still enjoys a loyal following among enthusiasts for its ruggedness and aftermarket support.

The 4D68 series engine has received numerous updates and refinements over its lifespan, resulting in various power outputs and performance characteristics. Early versions of the engine produced around 98 horsepower (73 kW), while later iterations, like the 4D68T and 4D68-T2, incorporated turbocharging to achieve outputs exceeding 130 horsepower (97 kW). These turbocharged variants offered impressive torque figures, making them suitable for demanding applications. Aside from power upgrades, the 4D68 engine has also been subject to emissions control improvements, with later versions featuring exhaust gas recirculation (EGR) systems and electronic control units (ECUs) for optimized fuel efficiency and reduced emissions. The availability of service repair manuals specifically for the 4D68 series engine underscores its long-term popularity and ensures that owners have access to the necessary information for maintaining and repairing these workhorse powerplants.