ARMY TM 9-2815-256-24
AIR FORCE TO 38G1-96-2
MARINE CORPS TM 2815-24/5
FIGURE 3-89. Delivery Valve Replacement
CAUTION
Always use a new delivery valve stop (35, FIGURE 3-73). Installation of a used stop can result in
leakage and low output at cranking speed.
CAUTION
Excessive tightening of screw (34) can cause seizure of hydraulic head and rotor assembly.
Insufficient torque may cause leaking and hard starting.
NOTE
Tighten screw (34) 120 to 125 in-lbs. (13.6 to 14.1 Nm).
j.
Install delivery valve spring (36) and new delivery valve stop (35) in rotor bore. Using hex end of extractor
(13383), install screw (34).
NOTE'
Tighten connectors 58 to 66 ft-lbs (78.6 to 89.5 Nm).
k.
If removed, install six new fuel connectors (47) in head.
I.
If removed, install plungers (29) in their bores and check for freedom of movement. Install four shoes (28) and
rollers (27) on rotor, refer to FIGURE 3-90.
m.
Remove rotor from holding fixture and submerge it in clean calibrating oil.
CAUTION
Do not force Plungers into bore. Never attempt to press a roller into a shoe from outer edges, as
groove width at this point is less than roller outside diameter and shoe breakage can result.
3-108
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