See Figures 1 and 2
Insert a tee in the fuel pump discharge line where it enters the carburetor. Connect a gauge rated at about 10 psi (68 kPa) to the open end of the tee. Run the engine at 4,000 rpm. The pressure should be 3.0-3.5 psi (20-24.0 kPa).
REMOVAL & INSTALLATION
- Remove the air cleaner. Disconnect and plug the 2 fuel lines.
- Remove the 2 retaining nuts and pull the pump off the cylinder head. Pull the insulator block off and the pushrod out.
- If there is any evidence of wear, check the length of the pushrod. It should be 3.4 inches (88mm) on 4-cylinder models and 4.7 inches (119mm) on 6-cylinder vehicles.
- Install in reverse order. Do not use sealer on the insulator block, as this will change the effective length of the pushrod.