Part Load Breather
WARNING: This page is about a different car, the 2015 Jaguar XK, 2014 Jaguar XK, 2013 Jaguar XK, and 2012 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.
| ITEM | DESCRIPTION |
|---|---|
| 1 | Flexible hose |
| 2 | Baffle plate |
| 3 | Oil drain |
| 4 | PCV (positive crankcase ventilation) valve |
| 5 | Oil separator |
The part load breather consists of an oil separator, two PCV valves and a flexible hose. The oil separator and the PCV valves are installed in the top of the RH (right-hand) cylinder head cover. The flexible hose connects the RH cylinder head cover to the inlet of the intake manifold.
The oil separator is installed in a channel in the top of the cylinder head cover. A baffle plate, which incorporates a gas inlet and an oil drain, is installed over the channel. The two PCV valves are installed on the outside of the cylinder head cover and connected in parallel in the gas outlet from the channel to the flexible hose. The PCV valves prevent reverse flow into the cylinder head cover when there is minimal depression in the intake manifold.