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TM 9-4110-257-14
5-40. INJECTION PUMP TESTING AND REPLACEMENT. - Continued
b.
Removal.
(1)
Remove two screws (1), flat washers (2), and cylinder casing (3).
(2) Remove three screws (4), cover (5) and gasket (6). Discard gasket.
CAUTION
Always use two wrenches when loosening the fuel pipe to prevent turning the
nozzle or injection pump fitting.
(3)
Loosen two flare nuts (7) and remove fuel pipe (8).
(4)
Remove fuel filter to injection pumps hose assembly (23) (para 4-59).
(5)
Remove three screws (9) and flat washers (10).
NOTE
The lower two cover screws use special sealing washers.
(6)
Remove two screws (11) and washers (12). Discard washers.
(7)
Remove nut (13), flat washer (14), cover (15), and gasket (16). Discard gasket.
(8)
If stud (17) is damaged, remove it.
(9)
Remove clip (24).
NOTE
The injection pump uses special gaskets as shims/seals and are not re-usable.
The quantity and thickness of gaskets determines the timing of the injection pump.
(10)
Remove two nuts (25), injection pump (21), and gasket(s) (26). Note quantity and thickness of gasket(s).
Discard gasket(s).
NOTE
The injection pump tappet can remain in the engine.
(11) If tappet (27) is attached to injection pump (21) spring, remove it.
(12) Remove stud(s) (28) if damaged.
5-90
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