Fiat 1998 Marea Service Manual page 419

Marea- Marea Weekend ft " ° f t ™
99 range
Copyright by Fiat Auto
RECIRCULATION CIRCUIT FOR VAPOURS
COMING FROM
(BLOW-BY)
The engine crankcase emissions consist of
air/diesel mixtures and burnt gases which escape
through the piston seals as well as lubricant oil
vapours.
These are defined as blow-by or breather gases.
The breather gases coming from both the crank-
case (2) and the cylinder head (5) reach the
separator (1).
In the separator (1) the gases lose part of the oil
dissolved in them which returns to the sump in
the form of droplets via the pipe (3).
The remaining gases, on the other hand, are di-
rected to the intake circuit via the pipe (4).
Engine
Fuel system
10.
THE CRANKCASE
21