 |
|||
|
|
|||
|
Page Title:
OIL FLOW FOR FUEL INJECTION PUMP AND GOVERNOR |
|
||
| ||||||||||
|
|
 TM 5-2410-237-23
FUEL SYSTEM THEORY OF OPERATION - CONTINUED
0039 00
OIL FLOW FOR FUEL INJECTION PUMP AND GOVERNOR
1.
Oil from the side of the cylinder block goes to support (29) and into the bottom of front governor housing (30). The flow
of oil now goes in three different directions.
a.
A part of the oil goes to the rear camshaft bearing in fuel injection pump housing (31). The bearing has a groove
around the inside diameter. Oil goes through the groove and into the oil passage in the bearing surface (journal) of
camshaft (32). A drilled passage through the center of the camshaft gives oil to the front camshaft bearing and to
the thrust face of the camshaft drive gear. Drain hole (33) in the front of fuel injection pump housing (31) keeps the
level of the oil in the housing even with the center of the camshaft. The oil returns to the oil pan through the timing
gear housing.
b.
Oil also goes from the bottom of the front governor housing (30) through a passage to the fuel injection pump
housing and to governor servo (34). The governor servo gives hydraulic assistance to move the fuel rack.
c.
The remainder of the oil goes through passages to the rear of rear governor housing (35), through air fuel ratio con-
trol (36) and back into another passage in the rear governor housing. Now the oil goes into the compartment for the
governor controls. Drain hole (37) keeps the oil at the correct level. The oil in this compartment is used for lubrica-
tion of the governor control components and the oil is the supply for the dashpot.
2.
The internal parts of the governor are lubricated by oil leakage from the servo (34) and the oil is thrown by parts in rota-
tion. The flyweight carrier thrust bearing gets oil from the passage at the rear of the camshaft.
3.
Oil from the governor returns to the oil pan through a hole in the bottom of the front governor housing (30) and through
passages in the support (29) and cylinder block.
35
30
34
31
36
33
32
37
PRESSURE OIL
DASHPOT OIL
29
GOVERNOR AND FUEL INJECTION PUMP OIL FLOW
0039 00-3
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals