 PCV (breather valve) Vacuum hose connection |
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| Montreal914 |
 Apr 23 2020, 11:55 PM
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#1
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Advanced Member  Group: Members Posts: 2,072 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California 
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Is there a reason why I see a lot of engines (2 liter) where the vacuum hose connected to the PCV, by the oil filler, is connected to the air cleaner box whereas in the diagram, it is clearly connected to the plenum? (IMG:style_emoticons/default/confused24.gif)
My guess is that if the PCV ever gets faulty, there will be a vacuum leak in the intake revving up the engine. Commonly seen (picture from a Google search):  Versus Dave's diagram:  |
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| Bleyseng |
Apr 24 2020, 11:04 AM
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#2
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Aircooled Baby! Group: Members Posts: 13,037 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
The PCV hose gets connected to the branched elbow for manifold vacuum not to the air cleaner ports. That pic is just wrong as even the hose is the wrong kind.
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Posts in this topic
Montreal914 PCV (breather valve) Vacuum hose connection Apr 23 2020, 11:55 PM
JOEPROPER I think the picture is how late model '75 + ... Apr 24 2020, 06:21 AM 914werke there is no PVC valve on late 75/76 cars Apr 24 2020, 11:55 AM Bleyseng Its hard to tell what year setup he is running but... Apr 24 2020, 01:22 PM JeffBowlsby Oil vapor blow-by piped into the air cleaner pre-f... Apr 24 2020, 02:01 PM
Montreal914
Oil vapor blow-by piped into the air cleaner pre-... Apr 24 2020, 02:03 PM Montreal914 It was a 2 liter in a 73 then bumped up to 2056 d-... Apr 24 2020, 02:01 PM southernmost914
It was a 2 liter in a 73 then bumped up to 2056 d... Jun 5 2020, 12:28 PM |
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