PCV - Oil Catch Can Placement
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Joined: Aug 2006
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From: Eagan Minnesota
PCV - Oil Catch Can Placement
I've observed pictures with the PCV valve before the catch can (inlet - top connection) and after the catch can (outlet - side connection to manifold). What is considered the best placement for the PCV valve, before the catch can, after the catch can or doesn't it matter?
Larry
Larry
Race Director
Joined: Dec 2000
Posts: 19,304
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From: San Diego CA
Well, that depends upon the catch can. The PCV valve requires lubrication so if the catch can really does catch all the oil, including oil aerosols, then the PCV should be positioned before the can. However, since most catch cans allow oil aerosols to get past them, it may not matter where you place the can.
You can see more info about PCV valves and such, here:
http://www.conceptualpolymer.com/PCV...oval%20101.pdf
Remember that the outlet of the catch can should always find its way to the intake manifold.
You can see more info about PCV valves and such, here:
http://www.conceptualpolymer.com/PCV...oval%20101.pdf
Remember that the outlet of the catch can should always find its way to the intake manifold.
Pro
Joined: Feb 2004
Posts: 507
Likes: 0
From: Owatonna MN
I've observed pictures with the PCV valve before the catch can (inlet - top connection) and after the catch can (outlet - side connection to manifold). What is considered the best placement for the PCV valve, before the catch can, after the catch can or doesn't it matter?
Larry
Larry
You can see the PCV valve in the pic below, it is the fat part of the line before the 90* elbow.
Sorny
