3232854 - 1080D crankcase vapour/gas recirculation system

Operation

During engine operation, the oil vapours coming from the oil sump and crankcase are collected in the cam cover, which acts as a separator/condenser. A duct in the crankcase improves vapour recovery.Some of the oil vapours, condensed, drop back into the crankcase; the remaining vapours are sent to the intake through pipes (1) and (2).At idle speed, the oil vapours flow through the pipe (1); at higher engine loads through the pipe (2).