
100 SEBU8088-06
Maintenance Section
Fuel System - Prime
NOTICE
Do not allow dir
t to enter the fuel system. Thoroughly
clean the area around a fuel system component that
will be disconnected. Fit a suitable cover over any dis-
connected fue
l system components.
g01275925
Illustration 64
The right side view of a typical C27 or C32 Engine that is
configured for a gens et
(1) Fuel pr iming pump
(2) Fuel filter b ase
(3) Secondary fuel filter
g01275944
Illustration 65
The secondary fuel filter and the fuel priming pu mp is show n.
(1) Fuel priming pump
(2) Fuel filter base
(3) Secondary fuel filter
(4) Priming pump plunger
Follow the procedure below in order to prime the
engine with fuel.
1. Turn the priming pump plunger (4)
counterclockwise in order to unlock the
plunger. Manually pump the plunger in order to fill
the fuel lines and the fuel filters with fuel.
2. As the air is purged from the fuel system, fuel
pressure will increase. This will create resistance
in the plunger. Continue to pump the plunger until
a strong resistance is felt. The number of strokes
will vary with the amount of air in the fuel li nes.
3. After resistance is felt in the plunger, push in the
plunger. Lock the plunger by turning the plunger
clockwise.
4. Start the engine at low idle.
5. If the engine runs rough, continue to run the
engine at low idle until the engine runs smoothly.
NOTICE
Do not crank the engine continuously for more than
30 seconds. Allow the starting motor to cool for two
minutes before cranking the engine again.