AIR COMPRESSOR
BLOWER
OIL COOLER
OIL FILTER
FLYWHEEL HOUSING
FLYWHEEL
25
TURBOCHARGER
BREATHER
OIL PAN
FAN
DIPSTICK
ROCKER COVER
STARTER MOTOR
OIL
FILLER
EXHAUST
MANIFOLD
THERMOSTAT
HOUSING
ELECTRONIC
CONTROL
MODULE (ECM)
CRANKSHAFT
PULLEY
TYPICAL SERIES 92 ENGINE
(6V-92 TURBOCHARGED-AFTERCOOLED ENGINE SHOWN)
ENGINE SYSTEMS
Fuel System
The fuel system consists of the fuel
injectors, fuel pipes, fuel manifolds
(integral with the cylinder head), fuel
pump, fuel strainer, fuel filter, and the
necessary connecting fuel lines. The
fuel system on DDEC engines also
includes electronic fuel system con-
trols and a cooling plate for the elec-
tronic control module (ECM).
The primary filter (marked "P") or
combination filter and fuel/water sep-
arator removes large impurities from
the fuel. The secondary filter (marked
“S”) removes the smaller particles.
Lubrication System
The lubricating oil system consists of
an oil pump, oil cooler, full flow oil fil-
ter(s), bypass valves at the oil cooler
and filter(s), and pressure relief and
regulator valves at the lube oil pump.
Air System
In the air system used on Series 92
engines, outside air drawn into the
engine passes through the air filter,
air silencer, or air separator and is
pulled into the turbocharger, where it
is compressed. It then moves
through the blower, where it is further
compressed. An intercooler before
the blower, an aftercooler beneath
the blower or a charge air cooler in
front of the radiator (vehicle engines)
may be used to further increase the
density of the charge. The air then
flows into the cylinders, where it
mixes with atomized fuel from the
injectors.
Dry type air cleaners are used on
the majority of Detroit Diesel engines.
For optimum protection of the engine
from dust and other airborne contam-
inants, service these air cleaners
when the
maximum allowable air
restriction
has been reached, or
annually, whichever occurs first.
Cooling System
Radiator/fan cooling systems are
used on engines in on-highway, off-
highway, industrial, and generator
set applications. Heat exchanger/raw
water pump systems and keel cool-
ing systems are used on marine
engines. Certain generator set appli-
cations may also use heat exchang-
ers. Each system has a centrifugal
type fresh water pump to circulate
coolant within the engine. Each sys-
tem also incorporates thermostats to
maintain normal engine operating
temperature.
Electrical System
The electrical system generally con-
sists of a starting motor, starting
switch, battery-charging alternator,
storage batteries, and the necessary
wiring.
Exhaust System
Hot exhaust gas flowing from the
exhaust manifold into the exhaust riser
is used to drive the turbocharger.
24
Summary of Contents for 92 Series
Page 41: ...NOTES 77 NOTES 76 ...
Page 42: ...NOTES 78 ...
