 Can I use a non-PCV oil filler tower? |
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| RoadGlue |
 Nov 20 2017, 01:10 PM
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#1
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Sonoma County Gear Head  Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California 
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I'm running carbs and have one head with a vent tube that will run into an oil catch can/bottle.
I don't have an original 914 oil filler tower (or whatever it's called) but I received this one from a friend that must have come from either a bus or squareback. Would I be better off sourcing a PCV version?  My catch bottle -  |
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| McMark |
Nov 20 2017, 02:24 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
The case needs to be ventilated. Venting JUST though the heads will force air to travel from the case up through the pushrod tubes to the heads. This airflow can interfere with oil flowing from the heads to the case -- especially at high RPM.
There are at least 4 different versions of that part I can think of right now. Any of the others will work. It doesn't need to be a truly P ositive C rankcase V entilation system, just CV. |
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| RoadGlue |
Nov 20 2017, 02:38 PM
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#3
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California
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That's what I needed to know!
Thanks Mark. |
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