b. Removal and Installation
(1) Remove all fuel lines from governor, fuel
injection pumps and housing, fuel filter, fuel transfer
pump, and governor control linkage (TM 5-3810-201-12).
(2) Remove fuel filter (TM 5-3810-201-12).
(3) Remove fuel transfer pump (para 3-8).
(4) Remove six capscrews and lockwashers
securing the fuel pump housing to accessory drive
housing adapter.
(5) Remove fuel injection pump housing and
governor from engine as a unit by moving it to left until
drive gear is free of the adapter, then moving to an area
for disassembly.
(6) Install fuel pump housing by reversing the
procedures in steps (1) through (5) above.
c. Disassembly and Reassembly.
(1) Remove governor (para 3-10).
(2) Refer to figures 3-26 and 3-27, remove
and disassemble the individual fuel injection pumps from
housing.
NOTE
At reassembly of barrel and plunger
assembly, assure that notch in
bonnet, notch in barrel, and slot in
gear segment on plunger are alined
vertically.
(3) Refer to figure 3-28 and remove lifter (2),
camshaft (9), and fuel rack (15) from housing in
numerical sequence.
Figure 3-25. Fuel injection valve, removal, disassembly,
CAUTION
reassembly, and installation.
At reassembly, assure that all oil
holes are in proper alinement when
pressure fails to reach 400 psi, discard the valve. Test
installing bearings. Set fuel rack at
for leakage by applying 300 psi pressure. If pressure falls
0.000 inches to properly install the
more than 100 psi in 30 seconds, replace the valve.
barrel and plunger assemblies.
Replace a valve that does not produce an even atomized
spray pattern after the orifice has been cleaned. If
NOTE
screen filter in the valve is broken or clogged, replace the
Torque fuel injection pump retaining
valve.
bushing (1, fig. 3-27) to between 140
and 160 ft-lb at reinstallation.
NOTE
Only the capsule type nozzle and
(4) Reassemble
fuel
injector
pumps,
valve body need be replaced.
camshaft, lifters and housing in reverse order of that
Tighten nozzle on valve body only
shown in steps (1) through (3) above.
finger tight.
d. Cleaning, Inspection, and Repair.
3-20. Fuel Injection Pump for Engine Model D333TA
a. General. This fuel injection pump is composed
(1) Clean all parts using any process required
of six individual fuel pumps in one housing; cam shaft
to thoroughly clean, but not damage the parts, then dry
operated to assure timing, and driven by an adapter from
thoroughly.
the accessory drive shaft.
AGO 20051A
3-34
