Engine lubrication and gas and oil
vapour recirculation
Blow-by system
Gearbox thermistor
Scavenge and delivery pump
Suction screen
Pressure regulating valve
Oil lter cartridge
Oil pressure transmitter
Water/oil exchanger
Mesh lter
The lubrication system is of the dry sump
type, with xed gear pumps on the right-
hand side of the crankcase. The engine
is equipped with three scavenge pumps
and a delivery pump. The oil pump unit is
coupled to the water pump (see page 110)
and is driven by the crankshaft by means of
a chain.
The oil tank with suction chamber is cast in
the gearbox and has a separator equipped
with cylindrical degassing chamber in the
upper part with centrifugal cyclone effect.
The separator is tted with an oil ller plug
at the end of the ller neck.
The device for oil gas and vapour
recirculation is of the closed circuit type.
In the event of engine malfunctioning
with an abnormal rise in pressure, the
oil vapours coming from the heads are
conveyed to a pipe connected to the blow-
by system; from here, a part condenses and
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