Perkins 4008-30 Operation And Maintenance Manual page 27

SEBU9077-02
Illustration 25
Typical example of an 8 cylinder engine
(A) Inlet valves
(B) Exhaust valves
Table 1
4006-23 Engine Specifications
Number of cylinders
Bore
Stroke
Displacement
Compression Ratio
Firing order
Aspiration
Valve seat angle
Valve lash
Table 2
4008-30 Engine Specifications
Number of cylinders
Bore
Stroke
Displacement
Compression Ratio
Firing order
Aspiration
g03897666
In-line 6 cylinder
160 mm (6.29920 inch)
190 mm (7.48030 inch)
22.921 L
(1398.72514 cubic inch)
13.6:1
1-5-3-6-2-4
Turbocharged after cooled
20°
0.4 mm (0.01575 inch)
Cold
In-line 8 cylinder
160 mm (6.29920 inch)
190 mm (7.48030 inch)
30.56 L
(1864.88549 cubic inch)
13.6:1
1-4-7-6-8-5-2-3
Turbo charged after cooled
(continued)
(Table 2, contd)
Valve seat angle
Valve lash
Engine Cooling and Lubrication
The cooling system consists of the following
components:
• Gear-driven water pump
• Water temperature regulators
• Gear-driven oil pump (rotor type)
• Oil cooler
The engine lubricating oil is supplied by a gear-driven
pump. The lubrication oil is cooled and filtered.
Bypass valves provide unrestricted flow of lubrication
oil to the engine parts when oil viscosity is high.
Bypass valves can also provide unrestricted flow of
lubrication oil to the engine parts if the oil filter
element should become plugged.
Engine efficiency, efficiency of emission controls, and
engine performance depend on adherence to proper
operation and maintenance recommendations.
Engine performance and efficiency also depend on
the use of recommended fuels, lubrication oils, and
coolants. Refer to this Operation and Maintenance
Manual for more information.
ECM Engine Features
The ECM provides an electronic governor to maintain
the desired engine speed. The engine ECM has built-
in diagnostics to ensure that the engine systems are
functioning correctly. The operator may be alerted to
the condition by a "Stop" or "Warning" lamp.
Most of the diagnostic codes are logged and stored in
the ECM. There are three types of diagnostic codes:
active, logged, and event. The electronic service tool
may be used to display the diagnostic codes.
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.
Product Information Section
Engine Description
20°
0.4 mm (0.01575 inch)
Cold
27