8-15. FUEL FLOW TEST
This taskcovers: Testing
TOOLS AND SPECIAL TOOLS
General mechanics tool kit (App B, Item 96)
Turbocharger inlet shield (AppB, Item 81)
if necessary, adapt a fuel line
extension to the fuel return line to
a. Attach a fuel return line (1) beyond
restricted fitting on engine.
b. HoId open end of fuel return line (1) in a
Avoid contact with hot
manifolds, pulleys, and
other moving parts to avoid
Wear proper ear protection when running engine. Noise volume of
engine can cause hearing loss or injury.
Protective turbocharger air inlet shield must be installed prior to doing
maintenance when engine is running and air inlet has been removed.
Contact with rotating blades will cause injury to personnel.
Run engine in clean area when air intake ducting is removed. Dirt, dust, and particles
in unfiltered air can enter engine and damage parts or cause mechanical failure.
c. Start engine and run at 1200 RPM NO-LOAD. Using a stop watch (3), measure fuel flow from fuel
return line (1) for one minute. Minimum fuel return rate is 0.8 GPM.
d. Stop engine. Remove fuel line extension if adapted. Connect fuel return line (1).
END OF TASK