b. Fuel System. Engine fuel system is described in para. 4-2.
c. Cooling System. Engine cooling system is described in para. 5-2.
d. Lubrication System. Engine lubricating oil is forced through various internal passages by an internally mounted, gear
type pump (1). Oil is cleaned by a disposable filter cartridge (2) and is cooled by engine coolant flow through a cooler
(3) mounted to the side of the engine. A pressure operated bypass valve (4) is incorporated to provide continued oil
flow around filter in the event filter becomes clogged. A differential pressure of 20 psi will open filter bypass valve. A
pressure regulating valve (5), located in the front of the engine, is designed to open at a pressure of 60 psi to protect
pump and other system components against excessive pressures.
e. Air Intake System. Air intake system includes an air cleaner, turbocharger (6), intake manifold (7) and connecting
piping. Purpose of air intake system is to provide a supply of clean, pressurized air for fuel combustion in the engine
cylinders. Turbocharger rotation draws air through the air cleaner, where most airborne contaminants are removed,
and forces this air, under pressure into the intake manifold. From the intake manifold, air is distributed to the cylinders
through timing action of the intake valves.
f. Exhaust System. Exhaust system includes exhaust manifold (8), turbocharger turbine (9), exhaust piping and muffler.
Exhaust gases are directed against the turbine blades, causing turbine to rotate at high speed. Exhaust gases leaving
turbocharger pass through the muffler, which reduces level of exhaust noises.