Fuel manifold (cb 168)

FUEL MANIFOLD (CB 168)

The fuel manifold is secured to the inside of the inlet manifold, and its function is to send fuel to the fuel injectors.

The fuel manifold is die-cast aluminium and it comprises the seats for the fuel injectors.

The fuel inlet comprises a tapered sealing screw.

CHARCOAL FILTER AND FUEL VAPOUR CUT-OFF VALVE

These components form part of the fuel vapour anti-evaporation and recycling system. They are located in the right wheelarch, and to access them the rear section of the trim in the front right wheelarch should be removed.

1. Fuel vapour cut-off solenoid
2. Charcoal filter

Charcoal filter

This consists of charcoal granules (4) which retain the fuel vapours entering through the connection (5).

The scrubbing air which enters through the connection (1), passing through the paper filter (3), envelops the charcoal granules, removing the petrol vapours and conveying them towards the outlet (2) and then to the cut-off valve.

The air, which comes in through the connection (5), can also be recalled by the vacuum in the tank, so ventilating it. The partition (6) ensures that the scrubbing air drawn in envelops all the charcoal granules, encouraging the release of petrol vapours to the inlet manifold.

There are also two springs (7) which allow expansion of the mass of granules when the pressure increases.