In addition to supplying the circuit, the coolant reservoir absorbs the variations in the volume of the coolant as the temperature of the engine varies.The maximum pressure reached by the engine cooling circuit is 1.4 bar.A special calibrated valve in the pressurised cap assures the following:
emergence of air from the circuit collected by the pipe leading from thermostat.
air intake when the circuit contains a vacuum (due to engine cooling).
ENGINE COOLING RADIATOR
Composition
Structure
This consists of a radiant mass and a side tank for coolant intake and outlet.The radiator pipes and fins are aluminium, the tanks are plastic.