Fuel manifold

FUEL MANIFOLD

The fuel manifold, which has the task of distributing the fuel to the injectors, is made from die-cast aluminium and incorporates the housings for the injectors and the air bleed valve.

The fuel inlet has a rapid attachment. Since the system is the returnless type, there is no recirculation pipe.

1. Fuel manifold
2. Injectors
3. Fuel supply connector
4. Bleed valve

INJECTORS

The injectors have the task of supplying the amount of fuel required for the operation of the engine: the fuel is injected into the inlet duct, immediately upstream of the inlet valve.

The injectors are the top-feed type and there is an electrical winding connected to the connector (3) terminals.

When the current passes through the winding, the magnetic field which is created attracts the shutter causing the opening of the injector and the flow of fuel.

There are two seals on the fuel manifold side (1) and the inlet manifold side (2). A reference (4) determines the angular position of the injector and the correct position of the jets in relation to the inlet valves.

Wiring connector

The injector resistance can be measured by disconnecting the connector and connecting an ohmmeter as shown in the diagram.

Resistance value: 14.5±5% ohm.