Cadillac 60 Series 1963 Shop Manual page 244

FUEL AND EXHAUST
10-9
At cranking speed, fuel pump pressure should
be 5-1/4 to 6-1/2 pounds per square inch.
9. If pressure is below 5-1/4 pounds, overhaul
pump.
15. Fuel Pump Removal
and Installation
a. Removal
1. Disconnect fuel line between fuel filter and
pump. Remove line.
2. Release hose clamp securing rubber hose
to fuel pump inlet. Plug end of hose to prevent
fuel drainage.
3. Remove two cap screws and washers that
hold fuel pump to engine front cover and remove
pump. Discard gasket.
b. Installation
1. Using new gasket position fuel pump with
attaching screws. Tighten screws to 15 foot-
pounds.
2. Remove plug and connect rubber inlet fuel
hose to pump, securing with hose clamp.
3. Install fuel line between fuel pump and filter.
16. Fuel Pump
Disassembly and Assembly
a. Disassembly
1. Clean outside of pump in solvent and use
compressed air to remove loose dirt and grease.
2. Mark edges of fuel diaphragm cover and
body with a file to assure correct positioning
when reassembling.
3. Remove four screws and lock washers and
remove pulsator cover and pulsator diaphragm,
Fig. 10-7.
4. Remove rocker arm return spring.
5. Remove ten screws and remove fuel dia-
phragm cover from body. Tap cover gently with
plastic hammer if cover sticks to diaphragm.
6. If outlet and inlet valves are worn or dam-
aged, remove by driving out with a drift punch.
7. Clamp mounting flange of pump body in a
vise with soft metal jaws. File peened end of
rocker arm pin until pin can be driven out of
Gasket
Pulsator Diaphragm
Outlet Valve
Body
Spring
Diaphragm Rod Seal
Return Spring
Fuel Diaphragm Bushing
Gasket
Fuel Diaphragm Cover
Inlet Valve
Pulsator Cover
Fig. 10-7 Fuel Pump Disassembled