TM-5-4310-389-14
4-18. FUEL INJECTION PUMP (ENGINE).
DESCRIPTION
This task covers: Test. Adjust. Replace. Repair.
INITIAL SETUP
Tools:
Equipment conditions:
General Mechanic Tool Kit
Equipment secured (paragraph 2-11).
Graduation magnet (003-1189)
Fuel injection lines removed
Dial segment for V-belt pulleys
(paragraph 3-27).
(003-0677)
Oil dipstick removed (paragraph 3-23).
Setting device (003-0498)
Fuel oil filter removed (paragraph 3-26).
Dial gauge (003-0543)
Stop/start solenoid and throttle label
Graduated scale (003-0677)
removed (paragraph 4-11).
Pointer (003-0678)
The fuel feed pump intake is connected
to the fuel tank or a receptacle
Materials/parts:
containing filtered fuel. Proper fuel
Lint-free Cloth, item 9 Appendix E
delivery is a prerequisite (for testing
Sealing Compound, item 11 Appendix E
only).
Automotive and Artillery Grease,
item 18 Appendix E
TEST
a.
Connect the pressure line of the high-pressure tester.
b.
Disassemble the fuel filter. Disassemble the fuel line of cylinder 1 connecting with the pumping element and the
leak-off line connecting with the fuel injection pump cover. Plug the leak-off hole and connect the pressure line of
the instrument to the threaded sleeve for the fuel filter (figure 4-45).
NOTE
Number 1 cylinder is the closest cylinder to the flywheel. The hand pump can also be used if a
blanking cover with hollow screw is provided.
c.
Connect the overflow pipe with funnel and the return line to the stub for the fuel line to cylinder 1.
4-70
