914/6 Oil tank vent connection

[914Chap]

Hi,
I am in the process of installing a 6 cylinder engine in my 914. I have a factory oil tank with a factory filler neck. There are 2 18mm vent connections on the setup, 1 on the filler neck which I believe connects to the crankcase vent on top of the engine, and a second on the top of the tank itself. I think this second would normally connect to the air intake housing but I am not using the original air box as my carburetors are fitted with k&N weather-shield filters which do not appear to have any breather connection. Does anyone have any suggestions where this vent needs to be connected? or have I got the setup wrong altogether?
Any help would be much appreciated.
Cheers Jonathan.

[defianty]

The one from the top of the tank usually goes to the crankcase. The other most people add an oil breather filter or even an oil catch can.

[914Chap]

Thanks Stephen,

I have some hose I can use to connect up to the crankcase but I will have to look for some adapters for the connect to a catch tank or breather.

Thanks for the help.
Cheers Jonathan.