SEBU8605-01 25
Product Information Section
Model Views
g01187485
Illustration 24
(A) Exhaust valves
(B) Inlet valv es
Table 1
1204E-E44TA and 1204E-E44TTA Engine
Specifications
Operating Range (rpm) 800 to 2200
(1)
Number of Cylinders 4 In-Line
Bore
105 mm (
4.13 inch)
Stroke 127 mm (4.99 inch)
MK
60 to 110 kW
(80.46 to 147.51 hp)
Power
ML
105 to129.5 kW
(140.805 to 173.65 hp)
Aspiration
MK Single Turbocharged
charge cooled
ML Series Turbocharged
charge cooled
Compression Ratio
16.5:1
Displacement
4.4 L (268.504 cubic inch)
Firing Order 1-3-4-2
Rotation (flywheel end) Counterclockwise
(1)
The operating rpm is dependent on the engine rating, the
application, and the con fi guration of the throttle.
Electronic Engi ne Features
Theengineope
rating conditions are monitored.
The Electronic Control Module (ECM) controls the
response of the engine to these conditions and to
the demands of
the operator. These conditions and
operator demands determine the precise control of
fuel injection by the ECM. The electronic engine
control syst
em provides the following features:
•
Engine monitoring
•
Engine speed governing
•
Control of t
he injection pressure
•
Cold start strategy
•
Automatic air/fuel ratio control
•
Torque ri
se shaping
•
Injection timing control
•
System diagnostics
•
Aftertr
eatment low temperature regeneration
For more information on electronic engine features,
refer to
the Operation and Maintenance Manual,
“Features and Controls” topic (Operation Section).
Engine Diagnostics
The eng
ine has built-in diagnostics in order to ensure
that the engine systems are functioning correctly. The
operator will be alerted to the condition by a “Stop or
Warni
ng” lamp. Under certain conditions, the engine
horsepower and the vehicle speed may be limited.
Theelectronicservicetoolmaybeusedtodisplay
the di
agnostic codes.
There are three types of diagnostic codes: active,
logg
ed, and event.
Most of the diagnostic codes are logged and stored
in th
e ECM. For additional information, refer to
the Operation and Maintenance Manual, “Engine
Diagnostics” topic (Operation Section).
The ECM provides an electronic governor that
controls the injector output in order to maintain the
des
ired engine rpm.
En
gine Cooling and Lubrication
The cooling system and lubrication system consists
of
the following components:
•
Gear-driven centrifugal water pump
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