Fuel Injector Spray Pattern - Isuzu C-240PW-28 Technical Manual

4 cylinder 2.4 liter nsn: 2815-01-350-2207
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ARMY TM 9-2815-254-24
AIR FORCE TO 36G1-94-2
e.
Open valve on fuel injector tester and operate lever at one stoke per second.
f.
Spray should start at 1706 psi (120 kg/cm
be visible.
g.
Turn adjusting screw (16, FIGURE 3-4) as necessary to obtain starting pressure and spray pattern in step
f.
h.
Repeat step e and operate level to hold pressure at 290 psi (20.4 kg/cm
i.
No drops should fall from fuel injector within 10 seconds.
j.
Remove fuel injector from tester and place in a vise.
k.
Install capnut (14) and tighten to 25.5 ft-lbs (34.0 Nm).
l.
Remove fuel injector from vise.
3-10.7. Installation.
3-30
FIGURE 3-5. Fuel Injector Spray Pattern
lf existing fuel injectors are being used, ensure they are installed in loca-
tions as marked during removal.
2
) and a well atomized spray pattern (refer to FIGURE 3-5) should
N O T E
2
) below opening pressure.

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