Injection system — bleeding (Peugeot 305)

1. After disconnecting any part of the system or after the engine has shut down due to lack of fuel, the system must be bled before starting the engine (pump fuel into it and remove air).

2. Loosen the bleed screw on the fuel filter head by 2-3 turns. On the Lucas CAV/Roto-Diesel filter, you can install a small plastic tube on the bleed screw and lower its free end into a small container to collect the spilled fuel.

3. Pump the plunger of the manual priming pump until fuel, free of air bubbles, begins to flow out from under the screw. On some Lucas CAV/Roto-Diesel filter models, the plunger must first be unscrewed (see photo), which can sometimes cause it to become detached from the inner piston. If this happens, you should unscrew the filter housing and press the piston onto the plunger. Replace the housing and slowly operate the plunger.

4. Tighten the bleed screw.

5. Turn on the ignition to energize the shut-off solenoid and pump the manual priming pump until resistance is felt.

6. Where applicable (on some Lucas CAV/Roto-Diesel filters) tighten the plunger again.

7. Set the ignition key to position "M" and wait until the pre-glow indicator lamp goes out.

8. Press the gas pedal all the way down and start the engine. It may take a little longer than usual to run the starter to fully bleed the system.