2585391 - Introduction - ENGINE LUBRICATION SYSTEM

VIEW OF ASSEMBLY

.1, Suction pipe with filter mesh2, Oil pump3, Oil filter cartridge4, Water/oil heat exchanger5, Main longitudinal duct6, Jets (piston skirt cooling)7, Vertical duct (camshaft support lubrication)8, Oil return to sump9, Engine oil pressure warning light switch10, Turbocharger lubrication pipes

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).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).1, Low pressure chamber2, Separating wall3, Pressure chamber4, Oil delivery pipe5, Pressure limiting valve

ENGINE OIL PUMP

Closed operating position of oil pressure limiting valve.

ENGINE OIL PUMP

Bypass operating position of limiting valve