Steve, if the breathing system was working properly then why is it puking oil up into throttle body?

I get it that the large oil tank allows the foam to turn back to oil because of its large volume. I get zero oil out of the cam chest vent without the throttle body sucking on it.

Is one reason it is done that way, to dump oil into the throttle body, a method of lubricating the valves?


The light at the end of the tunnel is actually a train. 2019 M3W