SECTION 2 ENGINE
Group 1 Structure and Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Group 2 Engine speed & stall rpm - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-7
Group 3 Fan drive circuit for cooling system - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-8
SECTION 2 ENGINE
GROUP 1 STRUCTURE AND FUNCTION
1. STRUCTURE
Turbocharger
Alternator
Coolant heater
starting aid
Lubricating oil filter
Starter cooler
Lubricating oil filter Water inlet connection
Vibration damper
Air transfer connection
Air intake connection (From charged air cooler)
(To charged air cooler) Valve cover
Air heater starting aid Lifting bracket
Fuel filter
Crankcase breather
Fan drive
ECM
(Engine control module) Flywheel housing
Injection pump
Oil level gauge
Oil pan
7607AEG01
· Direct 4-stroke, 6-cylinders, water-cooling and charge air cooled diesel engine in installed, cylinder
block and cylinder head are made of case iron and turbocharger is attached.
2-1
2. SYSTEM DIAGRAMS
The following drawings show the flow through the engine systems.
1) FUEL SYSTEM
7607AEG02
1 From fuel tank 11 Fuel rail
2 Water/fuel separator(not mounted on engine) 12 To injectors
3 ECM cooling plate 13 High-pressure connector
4 To fuel gear pump 14 Injector
5 To fuel filter 15 Fuel return from injectors and fuel rail to fuel
6 Fuel filter head filter head
7 Fuel filter 16 Fuel return from high-pressure pump to fuel
8 To high-pressure pump filter head
9 High-pressure pump 17 To fuel tank
10 To fuel rail
2-2
2) LUBRICATING OIL SYSTEM
7607AEG03
1 Gerotor lubricating oil pump 8 Filter bypass valve
2 From lubricating oil pump 9 Filter bypass valve closed
3 Pressure regulating valve closed 10 Filter bypass valve open
4 Pressure regulating valve open 11 To lubricating oil filter
5 To lubricating oil cooler 12 Full-flow lubricating oil filter
6 To lubricating oil pump supply 13 From lubricating oil filter
7 Lubricating oil cooler 14 Main lubricating oil rifle
(1) Lubrication for the turbocharger
7607AEG04
1 Turbocharger lubricating oil supply 2 Turbocharger lubricating oil drain
2-3
(2) Lubrication for the power components
7607AEG05
1 From lubricating oil cooler 6 To camshaft
2 Main lubricating oil rifle 7 Crankshaft main journal
3 To valve train 8 Oil supply to rod bearings
4 From main lubricating oil rifle 9 Directed piston-cooling nozzle
5 To piston-cooling nozzle 10 To internal lubrication of air compressor
(3) Lubrication for the overhead
7607AEG06
1 Main lubricating oil rifle 4 Rocker lever shaft
2 Rocker lever support 5 Rocker lever bore
3 Transfer slot 6 Rocker lever
2-4
3) COOLING SYSTEM
7607AEG07
1 Coolant inlet 7 Coolant flow to thermostat housing
2 Pump lmpeller 8 Coolant bypass passage
3 Coolant flow past lubricating oil cooler 9 Coolant flow back to radiator
4 Coolant flow past cylinders 10 Bypass closed
5 Coolant flow from cylinder block to cylinder head 11 Coolant bypass in cylinder head
6 Coolant flow between cylinders 12 Coolant flow to water pump inlet
4) AIR INTAKE SYSTEM
7707AEG08
1 Intake air inlet to turbocharger 4 Intake manifold
2 Turbocharger air to charge air cooler (Integral part of cylinder head)
3 Charge air cooler 5 Intake valve
2-5
5) EXHAUST SYSTEM
7707AEG09
1 Exhaust valve 3 Turbocharger
2 Exhaust manifold 4 Turbocharger exhaust outlet
2-6
