Removal & Installation
See Figure 1
- Disconnect the inlet and outlet fuel lines and, on the 2.8L engine, the fuel return line.
- Remove the fuel pump body attaching nuts and lock washers.
- Pull the pump and gasket or O-ring free of the engine.
On the 2.8L engine, the actuating rod may fall from the engine.To install:
- 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 capscrews and lock washers. tighten the capscrews to 16 ft. lbs. (21 Nm).
- Connect the fuel lines to the fuel pump.
- Disconnect the fuel line from the carburetor and place the open end of the line into a graduated one quart container.
- Start the engine and operate it at a normal idle speed. The pump should deliver at least one pint in 30 seconds.
- Replace the pump if defective.
- Disconnect the fuel line at the carburetor.
- Install a T-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 T-fitting.
- The hose leading to the pressure gauge should not be any longer than 6 in. (152mm). On pumps with a fuel return line, the line must be plugged. Start the engine.
Fuel pressures are as follows:
2.5L: 4.00-5.00 psi (27-34 kPa) at idle