inlet strainer by the transfer pump. Fuel is forced through
from the pump through an outlet port to an injection line,
the axial passage to pumping cylinder by transfer pump
then to the fuel injector.
pressure. As the distributor revolves, a plunger is forced
b. For Engine Model D333TA. This fuel pump is
outward a distance in proportion to amount of fuel
admitted to the pumping cylinder. Further rotation of the
composed of a housing with six cam operated individual
distributor brings its discharge port into registry with an
fuel pumps installed. The pumps may
outlet port, and the rollers simultaneously contact the
opposing cam lobes thereby forcing the plungers toward
each other. Fuel trapped between the plungers is forced
1
Flywheel housing
18
Lockwasher (24 rqr)
2
Lockwasher (45 rqr)
19
Exhaust lever support (6 rqr)
3
Nut (21 rqr)
20
Cam cover
4
Oil line
21
Drive mechanism
5
Fuel return line
22
Ground wire
6
Shutoff control linkage
23
Throttle rod
7
Connector nut (4 rqr)
24
Flatwasher (3 rqr)
8
Shutoff shaft
25
Nut (3 rqr)
9
Fuel return line
26
Throttle shaft arm
10
Fuel injection pump
27
Nut
11
Fuel line
28
Locking screw
12
Fuel line #5
29
Lockwasher
13
Fuel line #3
30
Headlocking screw
14
Fuel line #1
31
Fuel line #4
15
Fuel line #6
32
Fuel line #2
16
Capscrew (14 rqr)
33
Capscrew (16 rqr)
17
Nut (24 rqr)
34
Flatwasher (24 rqr)
Figure 3-18. Fuel injection pump and drive mechanism, removal and installation.
AGO 20051A
3-27
