924 Turbo Models

Blow-by gases are routed from the crankcase to an oil trap. When the gases reach the oil trap, excess oil is removed from the gases and routed back to the crankcase through a return hose. The remaining gases are drawn into the air cleaner and then into the combustion chamber for burning.

Fig 1: Crankcase Ventilation System for 924 Turbo Models

Courtesy of PORSCHE CARS NORTH AMERICA, INC.