Air/fuel can be vented from the illustrated vent locations on the Nippondenso EP-9 and the Lucas CAV fuel injecยญtion pumps. The Lucas CAV fuel injection pump requires the fuel solenoid valve be energized before venting.
Loosen the vent screw and operate the priming lever on the fuel transfer pump until fuel injection pump is primed.
Tighten the vent screw.
Air can also be vented through the fuel drain manifold line by operating the starting motor.