With Turbo Charger

The engine has a fully enclosed crankcase ventilation system consisting of a nipple beside the camshaft cover. The crankcase gasses are evacuated through the hose dividing nipple in the camshaft cover, through a small-bore hose to the throttle body or the intake manifold (depending on the year and the model) and a large-bore hose to the intake hose upstream of the turbocharger where the gasses are mixed with the intake air and combusted in the engine. The crankcase gasses are always evacuated through the small-bore hose except when there is overpressure in the intake manifold when the check valve in the small-bore hose shuts off the flow. The gasses are then evacuated through the large-bore hose to the intake manifold on the turbo and then to the engine. The hoses and their connections are sized to give satisfactory evacuation of the crankcase gasses from the engine under all operating conditions.

To avoid icing, the system is water heated.