1970 Chevrolet C20 Pickup - Motor Leaking Oil

[RustyPile]

Originally Posted by Willshook

I don't see the reason for that tube - just put a breather in one of the grommets and the PCV on the other side and call it good.

I'm not disagreeing with your suggestion, only explaining the components function. The tube is connected to the riser so that it will pick up filtered air.. The part on the other end of that hose is a flame arrestor.. Arrestors disappeared long ago but not the routing concept...