02-04-12, 10:37 AM
(This post was last modified: 02-04-12, 10:38 AM by Motorbreath.)
There is the engine oil breather over there, I think it is open when the pressure is too high, it goes to the airbox, and then there is another hose that goes from the airbox to outside in case there is too much oil. I do not know what else can cause overpressure except too much oil. Take a look to the service manual, at the downloads section.
Good luck
Good luck