T O 35C2-3-442-2
P-8-627-34
TM 5-6115-457-34
TM-07464A-35
1. Rack bearing bore.
f. When removing fuel regulator rack
bearings (62 and 65, figure 8-39), first
2. Fuel rack diameter.
make two scribe marks on housing above
groove on bearing (figure 8-40). This
3. Fuel rack to bearing clearance.
procedure allows for the alignment of
groove on bearing with drilled lubrication
4 . Camshaft bearing bore.
passage during reassembly.
g. Wire together each spacer (55, fig-
ure 8-39) and fuel pump lifter (56). Tag
5 . Camshaft bearing journal
each pair and identify the pump bore from
diameter.
which they were removed.
WARNING
6 . Camshaft to bearing clearance.
Cleaning Solvents are flammable and
7. Pump plunger length. Inspect
moderately toxic to skin, eyes and
plungers (52, figure 8-39) for excessive
respiratory tract. Eye and skin
wear on end which makes contact with
protect ion required. Good general
lifting washers (55 ). Length of new plunger
ventilation is normally adequate.
is 2.5931 to 2.5937 inches. The minimum
8-144. CLEANING.
allowable length that a worn plunger may
Clean metal components with an
continue to be used is 2.5881 inches.
approved cleaning solvent to remove fuel
oil, dirt, and accumulated deposits, and
NOTE
dry thoroughly.
8-145. INSPECTION.
Whenever a plunger is replaced, it
a. Refer to table 1-1, and using a
is necessary to replace the entire
suitable micrometer and feeler gauge,
pump assembly.
check for excessive wear as follows:
8. If allowable limits are not met
on above parts, replace part.
b. Inspect pump housing (76) for cracks,
breaks, and clogged oil passages.
c. Inspect the drive tang on camshaft
(60) and drive sleeve (59) for signs of
wear.
d. Inspect camshaft (60) for damaged
lobes.
e. Inspect plunger and barrel assembly
(48), lifter assembly (56), and washer (55)
for excessive wear or damage.
f. Inspect fuel rack (40) for nicks and
burrs and for chipped or cracked gear
teeth. If gear segments are cracked or
Figure 8-40. Removing fuel r e g u l a t o r
chipped, replace fuel rack.
rack bearings
8-90
Change 8
