ARMY TM 9-2815-255-24
AIR FORCE TO 38G1-95-2
MARINE CORPS TM 2815-24/4
If marks are not aligned, disconnect fuel lines from pump and loosen mounting nuts (7, FIGURE 3-91).
Rotate pump counterclockwise (viewed from flywheel end) and then in opposite direction until timing marks on
cam ring and governor weight retainer are aligned.
Tighten mounting nuts (7) to 20 ft-lbs (27 Nm).
Install timing hole cover plate (10, FIGURE 3-91) with new gasket (11). Install screws (12) and torque to 17 in-
lbs (2 Nm).
Connect injection pump pressure lines. Start with outlet for one fuel injection line (12, FIGURE 3-41) and
continue around pump head in counterclockwise direction, attaching lines in same order as engine firing (1 -3-4-
When tightening fuel pressure lines at fuel Injection pump, be sure not to turn fuel Injection
pump fittings. Turning of these fittings may cause internal pump damage.
Tighten fuel injection lines at pump to 20 ft-lbs (27 Nm).
Connect fuel return line and fuel supply line to pump.
Connect throttle control system, refer to end item maintenance manual.
3-29. FUEL INJECTION NOZZLE
Compressed air used for cleaning can create airborne particles that may enter the eyes. Pressure
will not exceed 30 psig (207 kPa). Eye protection required.
Before removal, carefully remove all dirt from cylinder head around fuel injection nozzles. Clean
with compressed air to prevent dirt from entering cylinders or valve seats. Plug bore in cylinder
head after each fuel injection nozzle has been removed. Cap fuel line openings as soon as they
Immediately fit protective caps over nozzle tips and line connections to avoid handling damage.
Do not bend fuel delivery lines, as this may affect their durability. When loosening fuel pressure
lines, hold male union of nozzle line stationary with a second wrench.
Loosen coupling nut (3, FIGURE 3-92) and remove tee (1) from nozzle (5). Remove and discard grommet (2).
Change 2 3-123