Perkins 4006-23 Operation And Maintenance Manual page 24

24
Product Information Section
Engine Description
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
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.
In-line 6 cylinder
160 mm (6.29920 inch)
190 mm (7.48030 inch)
22.921 L ()
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
20°
0.4 mm (0.01575 inch)
Cold
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.
SEBU9077-01