Oil Breather change?

[DaveDreads]

I just had a random thought about oil breathers.

I've had a V6 espace box fitted for nearly two years now,
aswell as an oil breather like this to replace the breather pipe that's in the shed.

I've had the same one fitted since I swapped the airbox over, every year I clean the air filter but changing the oil breather has never crossed my mind,
anyone how long do these breathers last or how often I should change it?

 

[Struggler]

doesnt the oil vent diectly into the inlet manifold from that little plate on the top of the rocker cover??

 

[aucky]

doesnt the oil vent diectly into the inlet manifold from that little plate on the top of the rocker cover??

There is a pipe from the back of the engine

 

[Dan519]

doesnt the oil vent diectly into the inlet manifold from that little plate on the top of the rocker cover??

yes there's a pin hole that vents into the plenum. It's called positive crank case ventilation. Breather gases are pulled out under vacuum

 

[DaveDreads]

Dan do I need to replace the oil breather at some point then, or do they last for a long time?

 

[Dan519]

just give it a clean, it's there to stop crap getting sucked into the oil under vacuum really. Only about £5 if you do need to replace it

 

[DaveDreads]

Ah right cheers mate, i'll just get a new one each year then if they're that cheap.