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PCV function

To: spridgets@Autox.Team.Net
Subject: PCV function
From: CONAN@RALVM8.VNET.IBM.COM
Date: Wed, 4 Nov 98 21:05:29 EST
Reply-to: CONAN@RALVM8.VNET.IBM.COM
Sender: owner-spridgets@Autox.Team.Net
...silly questions... MY turn! MY turn!!

  Could someone please explain to me just what the function of the PCV -valve-
is?  Why is a 'valve' needed?
  I understand that the purpose is to pull crankcase vapors back thru the
intake to be burned with the fuel charge; but, why do we need this valve?
Why not just an open hose from the crankcase vent to the air cleaner?
  Thanks!
         Ed in NC  :-)

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