3232858 - 1084B engine oil lubrication circuit
CONSTRUCTION FEATURES
Engine oil pump
The engine oil is drawn in from the sump by means of the vacuum created by the rotation of the sprockets fitted on the crankshaft.Vacuum is present between the sprocket separating wall (2) and the oil sump suction pipe.Pressure instead develops after the separating wall (2) in all the oil delivery pipes (4).The oil pressure in the engine lubrication circuit is 6 bar with the engine warmed up in all operating conditions.When the pressure exceeds 5 bar, the force exerted on the limiting valve (5) overcomes the reaction of the spring below and moves the valve to open the connecting pipe between the pressure chamber (3) and the low pressure chamber (1).
