MAINTENANCE OF MAJOR COMPONENTS
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4.2. Lubricating System
4.2.1. General descriptions and main data
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General descriptions
All the engine oil pumped up from the oil pan by the gear type oil pump is filtrated through the oil cooler and
oil filter, and this filtrated oil is forced through the main oil gallery in the cylinder block from where it is
distributed to lubricate the various sliding parts, and fuel injection pump in order to ensure normal engine
performance.
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Specifications
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Diagram of lubricating system
Item Specifications Item Specifications
Lubricating system Forced pressure
circulation
Oil filter type Full flow
Oil pump type
Relief valve opening pressure
Gear type
10
±
1.5
kg/cm
2
Bypass for filter element
Valve opening pressure
1.8 ~ 2.3
kg/cm
2
Bypass for oil cooler
Opening pressure
5+1
kg/cm
2
Relief valve
Cylinder block main oil gallery
4.0 ~ 4.8
kg/cm
2
Adjusting valve for spray nozzle
Opening pressure
1.5 ~ 1.8
kg/cm
2
5bar
4.4bar
1.3bar
2bar
10bar
EQM
Rocker arm
Piston
Cam shaft
Air compressor
Fuel injection pump
Water pump
bearing
Turbocharger
Oil spray nozzle
Oil pumpOil filterOil cooler
Valve
Valve Valve
Relief valve
Main oil gallery
Conn. rod bearing
Main bearing
EQM4005I
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