Section 7 – Airframe and Systems description
POWERPLANT
The expansion tank is closed by a pressure cap (3) fitted with pressure relief valve
and return valve. At temperature rise and expansion of the coolant, the pressure re-
lief valve opens and the coolant will flow via a hose at atmospheric pressure to the
transparent overflow bottle (4). Once cooled down, the coolant will be sucked
back into the cooling circuit.
The engine is provided with a dry sump forced lubrication system with an oil
pump with integrated pressure regulator. A thermostatic valve regulates the oil
flow to the heat exchanger (oil radiator) on the basis of oil temperature: this al-
lows the engine starting in cold conditions.
The oil tank is installed behind the firewall protected from heat sources. Some
holes on the bracket structure allow for air ventilation
The reservoir is fitted with a dipstick; a hose, immediately located beneath the
filler cap, allows for oil relief discharged in a safe zone in the cowling, far from
exhausts and other heat sources.
Following powerplant instruments are provided:
LH and RH RPM Indicator
LH and RH Manifold Pressure Indicator
LH and RH Oil Pressure Indicator
LH and RH Oil Temperature Indicator
LH and RH Cylinder Head Temperature Indicator
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