Part Load Breather

WARNING: This page is about a different car, the 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

ITEM	DESCRIPTION
A	Gas and oil vapor
B	Gas vapor
C	Oil
1	Positive Crankcase Ventilation Valve
2	Oil separator
3	Flexible hose
4	Baffle plate
5	Oil drain

The part load breather consists of an oil separator, Positive Crankcase Ventilation valve and a flexible hose. The oil separator and the Positive Crankcase Ventilation valve are installed in the top of the right camshaft cover. The flexible hose connects the right camshaft cover to the intake of the supercharger.

The oil separator is installed in a channel in the top of the camshaft cover. A baffle plate, which incorporates a gas intake and an oil drain, is installed over the channel. The Positive Crankcase Ventilation valve is integrated into the camshaft cover and connected in parallel in the gas outlet from the channel to the flexible hose. The Positive Crankcase Ventilation valve regulates the crankcase pressure.

Gas and oil vapor from the engine enter the part load breather. The vapor passes over the oil separator. The oil passes back into the engine. The vapor is drawn into the intake of the supercharger.