 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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| JeffBowlsby |
Apr 24 2020, 02:01 PM
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#2
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 9,222 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Oil vapor blow-by piped into the air cleaner pre-filter as shown, would eventually saturate the filter.
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| Montreal914 |
Apr 24 2020, 02:03 PM
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#3
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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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QUOTE(JeffBowlsby @ Apr 24 2020, 01:01 PM)  Oil vapor blow-by piped into the air cleaner pre-filter as shown, would eventually saturate the filter. Makes sense! Thank you for the explanation. (IMG:style_emoticons/default/first.gif) |
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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 Bleyseng The PCV hose gets connected to the branched elbow ... Apr 24 2020, 11:04 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
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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