Inspect the components of the fuel transfer pump for
damage. Replace the components, if necessary.
Clean all of the components before assembly.
Install seat washers (3).
Push valves (4) into position.
It is possible for the valves to be installed
incorrectly. Refer to Illustration 15 for the correct
When valves (4) are installed, peen the edge of the
valve housing evenly in six places. This will keep valves
(4) in position.
Install rocker lever (11), pin (9), and link arm (8) into the
bottom half of the fuel transfer pump.
Install the return spring and ensure that the ends of the
spring are installed correctly.
Using a soft hammer and a suitable adapter install two
retainers (10) into the grooves. Ensure that retainers
(10) fasten the pin. Peen the open ends of the grooves
in order to fasten the retainers in position.
Install the diaphragm spring (12) under diaphragm
assembly (5). Place spring seat washer (7) and stem
seal (6) on the pull rod.
Ensure that the small diameter at the top of the seal is on
the road section of the pull rod.
Place diaphragm assembly (5) over the lower half of the
body of the fuel transfer pump. Ensure that the blade of
the pull rod is aligned with the slot of link arm (8).
Press lightly on diaphragm assembly (5) until the notch
in the pull rod is in the slot of link arm (8). Rotate
diaphragm assembly (5) at 90 degrees in either
direction. This will engage the pull rod in the slot of link
Push rocker lever (11) toward the body of the fuel
transfer pump. Push rocker lever (11) until diaphragm
assembly (5) is level with the flange on the body of the
fuel transfer pump.
Install the top half of the body of the fuel transfer pump
and align the marks on the flanges. Keep pressure on
rocker lever (11). Install spring washers and the
screws. Tighten the screws evenly.
Install gauze (2).
Install the gasket and cover (1).
Refer to the Testing and Adjusting, "Fuel Transfer
Pump Pressure Test" for the correct procedure.
Install the fuel transfer pump. Refer to Disassembly
and Assembly, "Fuel Transfer Pump -Install".
Fuel Transfer Pump - Install
SMCS Code: 1256-012
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened