TM 5-4310-452-14
1-13. ENGINE (Con't).
(4)
Exhaust Stroke. As the piston moves upward on the fourth stroke, it forces the burned and expanded
gases from the cylinder through the open exhaust valve, which closes just before the piston reaches top dead center.
The air inlet valve opens and the cycles are repeated (i. e., there are two down and two up strokes in the cycle).
c.
The following illustration shows the location of the major engine components.
1. Rocker Chamber Cover
11. Oil Drain Plug
2. Injection Line
12. Overflow Line
3. Intake Manifold
13. Metering Fuel Pump
4. Cooling Blower
14. Oil Pan
5. Cooling Blower V-belt
15. Oil Dipstick
6. Alternator
16. Injection Pump
7. Alternator V-belt
17. Crankcase
8. Antifatigue Bolt (securing V-belt pulley to crankshaft)
18. Oil Filter Element
9. V-belt Pulley
19. Fuel Filter Element
10. Oil Filler Neck
20. Removable Air Duct
1-14. FUEL SYSTEM.
a.
The engine has a direct injection fuel system, which means that fuel is injected directly into the combustion
chamber.
b.
The following schematic shows the fuel flow through the system.
TA505389
1-13
