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Re: Pcv dripping oil
[Re: HelleOnWheels]
#1529983
11/07/13 11:53 PM
11/07/13 11:53 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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It might be a faulty (or wrong one) PCV that's flowing too much air & that's pulling the oil up there. EDIT I missed your 2nd post, not sure what piece you have
Last edited by RapidRobert; 11/07/13 11:55 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Pcv dripping oil
[Re: 80fbody]
#1529990
11/08/13 12:21 PM
11/08/13 12:21 PM
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Joined: Jan 2009
Posts: 228 FL
HelleOnWheels
OP
enthusiast
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OP
enthusiast
Joined: Jan 2009
Posts: 228
FL
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Quote:
If there's that much oil pulling out of the covers it will continue with a pcv correct? Just will dump into intake. Should he be concerned with it flowing back into the intake & fouling plugs, etc? Just thinking out loud here.
Maybe those baffles just don't work well.
I understand now that this type breather is supposed to go to the air cleaner however my original unsilenced air cleaner does not have a nipple on it. Can I just leave an open type round breather on drivers side and then throw this leaky breather with nipple out and replace it with a pcv valve? Am I not going to continue to get oil past the pcv and sucked into the vacuum line? I don't have any oily exhaust smoke which I would think would happen if oil was being sucked into carb.
I don't mind putting a small black pcv valve on in place of this current setup but I want to make sure I am not sucking oil into vacuum line.
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Re: Pcv dripping oil
[Re: 80fbody]
#1529991
11/08/13 12:42 PM
11/08/13 12:42 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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With the PCV being a small orifice it flows signficantly less than what is moving now & if that pass side breather nipple is plumbed to the carb/intake vacuum which it sounds like it is I'm surprised that it runs halfway decent at all as that is pretty much an open vacuum leak. You need a PCV on one side and a breather (either open or closed) on the other side then a fill cap to add oil. If that pass nipple is connected to the air cleaner (which it needs to be if you want a closed system) & there ain't no PCV on the other side then blowby under accelleration could be pushing oil up in to that pass breather but with that amount of oil dripping on the pass side & none on the dr side it sure sounds like that ain't the case & that just the pass nipple is improperly plumbed to manifold vacuum. EDIT I missed your last post. If you have a PCV plumbed to the carb base on one side and an open or closed breather on the other side you are all set. If there is no nipple on the air cleaner to connect the breather to the air cleaner for a closed system then yes the breather nipple can be left open (like the open breathers were in effect (no nipple) on pre '68 Mopars)
Last edited by RapidRobert; 11/08/13 07:32 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Pcv dripping oil
[Re: RapidRobert]
#1529995
11/08/13 01:09 PM
11/08/13 01:09 PM
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Joined: Oct 2013
Posts: 88 KS.
HairOtheDog
member
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member
Joined: Oct 2013
Posts: 88
KS.
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The PCV valve is designed to allow vapors (pressure/vacuum) to be removed from the crankcase, it then passes to the air cleaner where its passed thru another filter and some is drawn back into the carb for another pass thru the cylinders. The way you have that breather routed and hooked up to the carb vaccum, its basically acting like a straw in a soda can sucking the oil out, routing it to the air cleaner will reduce a substantial amount of vaccum and oil being drawn up/out, the PCV valve has a "stopper" in it coupled with the smaller orifice and less vaccum will reduce/eliminate that oil drip. Now, Depending on where you live (emissions), you could simply route that breather hose to the air cleaner and that would probably stop the oil drip as well, or just run an open breather with no nipple or hose and again, chances are good your oil drip will stop as well.
Last edited by HairOtheDog; 11/08/13 01:37 PM.
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