Fiat 1996 Brava Service Manual page 452

Engine
Fuel system
10.
Bravo-Brava <0i 16v
'98 range
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 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
moved.
1. Fuel vapour cut-off solenoid
2. Charcoal filter
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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 con­
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, 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 expan­
sion of the mass of granules when the pressure in­
creases.
40
Publication no. 506.670/14