Fuel Manifold (Cb 168); Charcoal Filter And Fuel Vapour Cut-Off Valve 4 - Fiat Bravo Service Manual

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Bravo-Brava <0i 16v

F U E L MANIFOLD ( C B 1 6 8 )

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

C H A R C O A L F I L T E R AND F U E L VAPOUR

C U T - O F F V A L V E

These components form part of the fuel

vapour anti-evaporation and recycling sys-

tem. They are located in the right wheelarch,

and to access them the rear section of the

trim in the front right wheelarch should be re-

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 w h i c h enters through the c o n -

nection ( 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, w h i c h 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 t w o springs (7) w h i c h allow expan-

sion of the mass of granules when the pressure i n -

Publication no. 506.670/14