TM 5-3810-300-24&P-3
15.2 Trouble Shooting (Engine)
Chart 4
NO FUEL OR INSUFFICIENT FUEL
SUGGESTED REMEDY
1
The fuel tank should be filled above the level of the
8
Replace the gear and shaft assembly or the pump
fuel suction tube.
body.
2
Perform a Fuel Flow Test and, if air is present,
9
Check the condition of the fuel pump drive and
tighten loose connections and replace cracked lines.
blower drive and replace defective parts.
3
Perform a Fuel Flow Test and, if air is present,
10
Replace with larger tank-to-engine fuel lines.
replace the fuel strainer gasket when changing the
strainer element.
11
Install a restricted fitting in the return line.
4
Perform a Fuel Flow Test and, if air is present with
12 Make sure that the check valve is installed in the
all fuel lines and connections assembled correctly, check
line correctly; the arrow should be on top of the valve
for and replace faulty injectors.
assembly or pointing upward
Reposition the valve if
necessary. If the valve is inoperative, replace it with a
5
Perform a Fuel Flow Test and replace the fuel
new valve assembly.
strainer and filter elements and the fuel lines, if
necessary, 6. Consult the Fuel Oil Specifications for the
13 Check the engine fuel spill-back temperature. The
recommended grade of fuel.
return fuel temperature must be less than 150 F or
a
loss in horsepower will occur. This condition may be
7
Perform a Fuel Flow Test and, if inadequate, clean
corrected by installing larger fuel lines or relocating the
and inspect the valve seat assembly.
fuel tank to a cooler position.
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