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TM 9-4110-257-14
c.
Installation.
(1)
If removed, install stud(s) (28).
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.
(2)
Install tappet (27) if removed, new gasket(s) (26) as noted during removal, and injection pump (21) being
careful to align lever arm (29) with hole in connecting rod (19). Install two nuts (25) and clip (24). Torque nuts to
between 27 and 31 ft lb (37 and 42 Nm).
(3)
Install fuel filter to injection pumps hose assembly (23) (para 4-59).
NOTE
The intake rocker arm will be in line with the intake manifold port.
(4)
Place a rag over injection pump fitting (18). Slowly rotate engine flywheel (20) clockwise and observe the intake
rocker arm (30) movement. The intake rocker arm will move down during an intake stroke and then begin to rise
as the compression stroke begins. Stop rotating the engine flywheel at this point.
(5)
Set and secure the connecting rod (19) to the full open position (right).
(6)
Install the fuel delivery sight onto the injection pump fitting (18).
NOTE
It may be necessary to rotate the flywheel several turns in order
to get fuel to become visible in the fuel delivery sight.
(7)
Slowly rotate engine flywheel (20) clockwise until the column of diesel fuel inside the fuel delivery sight starts to
move. This indicates the start of static injection.
(8)
The reference mark (31) on shroud (32) should match the static injection point (33) (middle dot) punched onto
the flywheel (20).
NOTE
Each 0.003 inch (0.1 mm) gasket inserted beneath the injection pump
correspond to 1.380 of rotation on the flywheel.
(9)
If the static injection point (33) is to the left (counterclockwise) side of reference mark (31), the timing is too
advanced and the injection pump (21) must be removed and installed with additional gasket(s) (26).
(10) If the static injection point (33) is to the right (clockwise) side of reference mark (31), the timing is too retarded
and the injection pump (21) must be removed and installed with fewer gasket(s) (26).
5-91
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