2. All models are fitted with a hand-operated priming pump, consisting of a rubber bulb, which is clipped onto the side of the left-hand suspension strut turret.
3. To prime the system, first loosen the bleed screw located on the top of the fuel filter/thermostat housing, mounted on the lefthand end of the cylinder head (see illustration). If no bleed screw is fitted, loosen the outlet union itself (either at the filter/thermostat housing or at the injection pump).
8.3. Fuel system bleed screw (arrowed) is located on the top of the fuel filter/thermostat housing
4. Pump the priming plunger until fuel free from air bubbles emerges from the outlet union or bleed screw (as applicable). Retighten the bleed screw or outlet union.
5. Switch on the ignition (to activate the stop solenoid) and continue pumping the priming plunger until firm resistance is felt, then pump a few more times.
6. If a large amount of air has entered the pump, place a wad of rag around the fuel return union on the pump (to absorb spilt fuel), then slacken the union. Operate the priming plunger (with the ignition switched on to activate the stop solenoid), or crank the engine on the starter motor in 10-second bursts, until fuel free from air bubbles emerges from the fuel union. Tighten the union and mop up split fuel.
Warning: Be prepared to stop the engine if it should fire, to avoid excessive fuel spray and spillage.
7. If air has entered the injector pipes, place wads of rag around the injector pipe unions at the injectors (to absorb spilt fuel), then slacken the unions. Crank the engine on the starter motor until fuel emerges from the unions, then stop cranking the engine and retighten the unions. Mop up spilt fuel.
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Warning: Be prepared to stop the engine if it should fire, to avoid excessive fuel spray and spillage.
8. Start the engine with the accelerator pedal fully depressed. Additional cranking may be necessary to finally bleed the system before the engine starts.