Illustration 18
g03692044
Cylinder and valve location
(A) Exhaust valves
(B) Inlet valves
Table 1
854F-E34TA Engine Specifications
Operating Range (rpm)
800 to 2750
Number of Cylinders
4 In-Line
Bore
99 mm (3.89763 inch)
Stroke
110 mm (4.33070 inch)
Power
Turbocharged Charge Cooled
63 to 90 kW
(84.48 to 120.69 hp)
Aspiration
Turbocharged charge cooled
Compression Ratio
17: 1
Displacement
3.4 L (207.48 cubic inch)
Firing Order
1-3-4-2
Rotation (flywheel end)
Counterclockwise
(1)
The operating rpm is dependent on the engine rating, the appli-
cation, and the configuration of the throttle.
Electronic Engine Features
The engine operating 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 system provides the following features:
• Engine monitoring
• Engine speed governing
• Control of the injection pressure
• Cold start strategy
• Automatic air/fuel ratio control
• Torque rise shaping
• Injection timing control
• System diagnostics
• Aftertreatment Regeneration
For more information on electronic engine features,
refer to the Operation and Maintenance Manual,
“Features and Controls” topic (Operation Section).
Engine Diagnostics
The engine 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
Warning
”
lamp. Under certain conditions, the engine
horsepower and the vehicle speed may be limited.
The electronic service tool may be used to display
the diagnostic codes.
There are three types of diagnostic codes: active,
logged and event.
Most of the diagnostic codes are logged and stored in
the 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
desired engine rpm.
Engine Cooling and Lubrication
The cooling system and lubrication system consists
of the following components:
• Belt driven centrifugal water pump
• Water temperature regulator which regulates the
engine coolant temperature
• Gear-driven rotor type oil pump
• Multi plate oil cooler
SEBU9068-03
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