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Old 03-05-2012, 10:53 AM   #10
Old Henry
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Join Date: Oct 2010
Location: Orem, Utah
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Default Re: Ventilating the Flat Head!

Originally Posted by peteyshoes View Post
i have a small vent on the side of oil pan that seems to pull some air in.
The movement of air past that vent actually creates a vacuum that draws the air out of that vent, thus creating the draft from the oil filler cap through the engine as in my illustration.
Prof. Henry (The Roaming Gnome)
"It is good to have an end to journey toward; but it is the journey that matters, in the end. *Ursula K. Le Guin in The Left Hand of Darkness
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