CHAPTER 1: INTRODUCTION
The powerplant consists of the engine and cross-drive transmission with a right and left output reduction gear drive. The
powerplant is removed from the vehicle as one complete unit.
Throughout this manual, the front of the engine is referred to as the damper end or front, and the rear of the ¾ engine is
referred to as the flywheel end or rear.
As viewed from the front (damper end) toward the rear (flywheel end), the side to the right is called the right side and the
side to the left is called the left side. Beginning at the front, the right bank of cylinders is numbered 1R through 6R, and
the left bank of cylinders is numbered 1L through 6L (see Figure 1-5).
Figure 1-5. Powerplant Diagram.
The Continental model AVDS-1790-2DR engine is a 12-cylinder, 90-degree, V-type, 4-cycle, air-cooled,
turbosupercharged, diesel engine. The cylinder assemblies are individually replaceable units with overhead valves and
valve rocker assemblies in the head. The cylinders are arranged in two banks of six cylinders each. Each bank of
cylinders has an overhead camshaft arrangement to actuate the valves of each cylinder.