5-15. REPLACE/INSPECT/TEST/ADJUST FUEL INJECTION PUMP.
This task covers
Tool Kit, General Mechanics (Item 1,
Torque Wrench 0-175 in-lb (Item 3,
Fuel tank removed
Fuel Injection pipe removed
a. Remove the lower fuel tank mounting bracket and rubber pads (1).
b. Loosen hex nut (2) securing pump viewing access plate (3) and gasket (4) Discard gasket.
c. Loosen two hex nuts (5) securing fuel Injection pump (6), and remove pump together with base mounting plate.
d. Remove metal shim (7).
e. If flat tappet (8) is not removed with fuel injection pump, then remove flat tappet with fingers.
Check for damaged parts and/or evidence of leakage
When replacing or installing a new fuel injection pump, it is usually not necessary to test or adjust the
injection timing. Run the engine and observe performance and exhaust color (refer to Table 4-2) before
a. Insert bottom of flat tappet (8) down Into engine block, closed end first.
b. Adjust speed control lever knob until governor yoke (9) is centered In engine block opening.
c. Refer to Figure 5 6 The access hole on fuel Injection pump has an access hole pointer match mark (1). Make
sure the pointer (2) of the control lever lines up with the match mark.
d. Refer to Figure 5-5 Position metal shim (7) and carefully Insert fuel injection pump (6) onto the studs, making sure
the speed control lever engages into governor yoke (9).
e. Secure fuel Injection pump onto studs using two nuts (5).
f. Attach pump viewing access plate (3) and new gasket (4) with one hex nut (2).