Thought they all worked that way.

http://www.google.ca/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&docid=PY5ojDU34y2CGM&tbnid=pjC4mvW9q0tBXM:&ved=0CAcQjRw&url=http%3A%2F%2Fwww.strutpatent.com%2Fpatent%2F07431023%2Fengine-pcv-system-with-venturi-nozzle-for-flow-regulation&ei=20wcVOvwNcaWyAS5_oKQDw&bvm=bv.75774317,d.aWw&psig=AFQjCNG3Yt0SPfqDrXpgrHR5pBnfteay0A&ust=1411227225158489

Last edited by wolffcub; 09/19/2014 4:34 PM.