Figure 11C-50. Typical Fuel Pump Mounting and Drive
cavity, the fuel flows from the outlet
R e m o v e Fuel Pump
cavity into the fuel lines and through the
engine fuel system under pressure.
1. Disconnect the fuel lines from the in-
let and outlet openings of the fuel pump.
The pressure relief valve relieves the
discharge pressure by by-passing the
2. Disconnect the drain tube, if used,
fuel from the outlet side of the pump to
from the fuel pump.
the inlet side when the discharge pres-
sure reaches approximately 65 to 75 psi
3. Remove the three pump attaching
( 4 4 8 to 517 kPa).
bolts, using wrench J 4242, and with-
drawn the pump from the blower.
The fuel pump should maintain the fuel
pressure at the fuel inlet manifold as
shown at the end of this subsection.
F i g u r e 11C-51. Fuel Pump Valving and Rotation
Fuel System and Governor