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TM 10-3930-638-24&P
4-3. FUEL SYSTEM MAINTENANCE (cont)
b. Fuel Injection Pump (cont).
g. Minimum
delivery check
h. High speed
delivery check
i. Low idle
delivery check
j. Automatic
advance check
k. Fuel delivery
STEP
LOCATION
ITEM
ACTION
REMARKS
TESTING (cont)
41
[cent)
Operate pump
Minimum delivery shall be 25 cubic MM/
at 150±10
stroke
RPM
Operate pump
High speed delivery shall be 11-14 cubic
at 2300±10
MM/stroke; if necessary adjust high idle
RPM
screw (43) to obtain correct delivery. Re-
peat pressure check above
Operate pump
Low idle delivery shall be 10-13 cubic MM/
at750±10
stroke. If necessary adjust low idle screw
RPM
(41 ) to obtain correct delivery
a. Observe
Each line on advance window equals two
advance
pump degrees; cam (116) has a line etched
window
on it which is observed at window
b. Operate
Cam movement shall be 1 degree
pump at
650-950
RPM
c. Operate
Cam movement shall be 5 degrees
pump
at 1250-
1450
RPM
d. Operate
Full advance (8 -0 + 1 degrees)
pump at
1700-
1900
RPM
e. Set test
Check that cam returns to its initial posi-
stand
tion. Recheck transfer pump pressure
for zero
RPM at
pump
a. Operate
Fuel delivery shall be 61±1.5 cubic MM/
pump
stroke
at 1400
±10 RPM
b. Operate
Fuel delivery shall be 25 cubic MM/stroke
pump at
minimum
at 150
±10 RPM
c. Operate
Fuel delivery shall be 11-14 cubic MM/
pump at
stroke
2300
±10PRM
4-130
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