Is this how Positive Crankcase Ventilation works on the Z22SE?

(Apologies if this is well known old news for many of you guys, but I'm new to fiddling with this particular engine View attachment 65655 ).


This is how I believe it works View attachment 65656 , please feel free to correct me if I'm wrong.


· There is no PCV valve on these engines.


· Fresh, filtered air from the intake manifold goes into the crankcase thru 'A':

View attachment 65657

View attachment 65658
(I believe 'b' and 'c' have no role here,...

Is this how Positive Crankcase Ventilation works on the Z22SE?