Illustration 16
g06253267
Typical example of a 6 cylinder engine
(1) Inlet valves
(2) Exhaust valves
Table 1
Engine Specifications
Engine
4006D-E23TA
Arrangement and Cylinders
In-Line 6 cylinder
Bore
160 mm (6.29920 inch)
Stroke
190 mm (7.48030 inch)
Displacement
22.921 L
(1398.72514 cubic inch)
Compression Ratio
12.8:1
Firing Order
1-5-3-6-2-4
Aspiration
ATAAC
Valve seat angle
20°
Valve lash
0.4 mm (0.01575 inch)
Cold
Rotation (flywheel end)
Counterclockwise
(1)
Air-to-air aftercooled
Table 2
Engine Specifications
Engine
4008D-E30TA
Arrangement and cylinders
In-line 8 cylinder
Bore
160 mm (6.29920 inch)
Stroke
190 mm (7.48030 inch)
Displacement
30.56 L
(1864.88549 cubic inch)
Compression Ratio
12.8:1
Firing order
1-4-7-6-8-5-2-3
(continued)
(Table 2, contd)
Aspiration
ATAAC
Valve seat angle
20°
Valve lash
0.4 mm (0.01575 inch)
Cold
Rotation (flywheel end)
Counterclockwise
(1)
Air-to-air aftercooled
Electronic Engine Features
The engine is designed for electronic controls. The
integral on board computer controls the operation of
the engine. Current 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 speed governor
• Automatic air/fuel ratio control
• Torque rise shaping
• Injection timing control
• System diagnostics
Extra Features
The following extra features provide increased
engine fuel economy and serviceability:
• Cold starting capability
• Tampering detection
• Diagnostics
Engine Service Life
Engine efficiency and maximum utilization of engine
performance depend on the adherence to proper
operation and maintenance recommendations. In
addition, use recommended fuels, coolants, and
lubricants. Use the Operation and Maintenance
Manual as a guide for required engine maintenance.
M0088207
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