LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - CONTINUED
ROCKER ARM HOUSING
Three separate aluminum housings, mounted above each of three cylinder heads. Each housing
contains two intake valve rocker arms, two exhaust valve rocker arms, and two fuel injector rocker
arms, ail mounted on a common shaft. Each rocker arm has an adjusting screw and locknut for
injector setting and valve adjustment.
Three separate cast-iron assemblies, each mounted to cylinder block above two adjacent cylinders.
Each contains one fuel injector and two intake and exhaust valve assemblies per cylinder. The cylinder
head also includes the intake and exhaust ports, and passages for coolant to carry away heat from
engine combustion. Each contain internal fuel passages for fuel injectors connected by fuel cross-
overs between cylinder head assemblies.
OIL COOLER AND FILTER
A tube and shell type heat exchanger, used to dissipate heat from the engine lubricating oil, into the
cooling system. The oil cooler helps maintain lubricating oil temperature within proper operating
range of 165° to 195°F (74° to 91°C).
Mounted directly to exhaust manifold and consists of an exhaust-driven turbine wheel and an impeller
that forces additional air into combustion chambers. This allows engine to burn more fuel and there-
fore develop more horsepower. The turbocharger is engine oil lubricated and cooled.
Mounted directly to rear of engine block and used to connect main transmission to engine assembly.
Attached to the flywheel housing, are the rear engine mounting brackets.
Three sections of cast-iron piping, mounted directly to each of three cylinder head assemblies. The
turbocharger is mounted to the center section of the exhaust manifold. The exhaust manifold serves as
a passage for exhaust gases that power the turbocharger, then directs gases into the exhaust system.