Volvo 2002 Crankcase high pressure

[Esio]

A Volvo 2002 have spitted out its Oil Dipstick two times due to an abnormal internal pressure. Something in the "closed circuit crankcase ventilation" must be blocked. Any hint?

[erps]

I don't know what volvo motor you have, but we have a Volvo D-6 Diesel in our work boat. There is a filter in the crankcase breather hose before it get's recycled into the air inlet. I suppose if that filter were to plug up it could develop some crankcase pressure.

[Esio]

Ray:

The system you had just described is the one I had with my old Volvo MD7A. This motor (Volvo 2002 is the model number) has a "closed circuit crankcase ventilation" which works in a way I have not yet figured out.

Thanks anyway.

[timebandit]

Is this what you are talking about?

An Integrated Approach to CCV (Closed Crankcase Ventilation) Filtration - Airport International