TM 5-4310-387-14
5-28. Fuel Injection Pump.
This task covers:
a.
Adjust
b.
Replace.
INITIAL SETUP
Tools
Equipment Condition
General Mechanic's Tools Kit (NSN 5180-00-177-7033)
Fuel lines removed from injection pump (for replace
Wrench, Torque (NSN 5120-00-554-7292)
only) (para. 4-24).
Materials/Parts
Reference
Roller Tappet
Gasket
Appendix F Torque Values.
Fuel Injection Pump
Rags, (Wiping, (Item 19, Appendix E)
Equipment Condition
a.
Adjust. (figure 5-39)
(1)
Ensure fuel tank (1) has fuel.
(2)
Set speed control lever (2) to mid-range.
(3)
Ensure primer button (3) is not pulled out.
(4)
Clamp off fuel supply line (4) from fuel tank (1) to injector pump (5).
(5)
Remove plug (6) and washer (7).
(6)
Install washer (8), banjo bolt (9) (with drip tube), and washer (10).
(7)
Open fuel supply line (4).
(8)
Set compression release mechanism (11) to neutral position.
(9)
Rotate flywheel (12) counterclockwise until fuel flows freely from drip tube (13).
(10)
Continue turning flywheel (12) until fuel stops dripping.
(11)
Slowly turn flywheel (12) clockwise until fuel starts to drip from drip tube (13) and stop turning flywheel
(12).
(12)
Measure distance between timing marks (14) and compare with figures in table 5-2.
(13)
Remove fuel pump (para. b.) and add shims to retard (lower engine speed) or remove shims to
advance (increase engine speed).
(14)
Install pump (para. b.) and recheck timing.
5-84
