Flatjack9>>>Note that your diagram does not show any of those items clearly.>>>
Sorry diagram was not so clear on oil breather cap, image shown below. The vent filter is simply a fine mesh screen wrapped around and secured to the vent body(I'm using a stainless steel coffee filter screen from WalMart). You can even use fiberglas or aluminum window screen material wrapped a few times around the vent. Hard to show all this in Old Henry's diagram --- it was hard enough reversing all the airflow arrows
so they all pointed in the right direction. 8^)
Jack E/NJ