See Figure 1
Disconnect the fuel line from the carburetor. Place the open end in a suitable container. Start the engine and operate it at normal idle speed. The pump should deliver at least 1 pt. (0.473L) in 30 seconds.Pressure Check
Disconnect the fuel line at the carburetor. Disconnect the fuel return line from the fuel filter if so equipped, and plug the nipple on the filter. Install a tee fitting on the open end of the fuel line and refit the line to the carburetor. Plug a pressure gauge into the remaining opening of the tee fitting. The hose leading to the pressure gauge should not be any longer than 6 in. (15cm). Start the engine and let it run at idle speed. Bleed any air out of the hose between the gauge and the tee fitting. On pumps with a fuel return line, the line must be plugged. Start the engine. Fuel pressures are as follows:
REMOVAL & INSTALLATION
See Figures 2, 3, 4 and 5All Engines
- Disconnect the inlet and outlet fuel lines, and any vacuum lines.
- Remove the two fuel pump body attaching nuts and lockwashers.
- Pull the pump and gasket, or O-ring, free of the engine. Make sure that the mating surfaces of the fuel pump and the engine are clean.
- Cement a new gasket to the mounting flange of the fuel pump.
- Position the fuel pump on the engine block so that the lever of the fuel pump rests on the fuel pump cam of the camshaft.
- Secure the fuel pump to the block with the two cap screws and lock washers.
- Connect the intake and outlet fuel lines to the fuel pump, and any vacuum lines.