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 2Likes
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1
Post By blykins
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1
Post By scootter
02-21-2017, 08:16 AM
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CC Member
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Join Date: Aug 2016
Cobra Make, Engine:
Posts: 107
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Not Ranked
PVC Install Question
Hi Guys,I want to install a PVC set up on my 2- 4 barrel side oiler. My questions are I would like to install a catch can with this setup and can I drain the catch can back to the oil pan? I recently installed a Aviaid 10 qt oil pan with provisions welded in the top for 3/8 and 1/2 hoses. They are blocked off now but are easily removable. Another question is where is the best location for the vacuum source (base of one of the carbs)? There is a bolt on plate at the rear of the engine that looks like a draft tube would go there. Could the PCV valve be installed there instead of the valve cover? I hate to drill into my new Cobra valve covers. Finally there are so many PVC Valves is there any particular one I should consider?
Thanks for your time. |
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02-21-2017, 09:49 AM
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CC Member
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Join Date: Aug 2014
Location: Syracuse,
Ny
Cobra Make, Engine: Superformance #2660, FE-406
Posts: 372
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Not Ranked
Sounds kind of like a solution in need of a problem. Unless you have reason to believe otherwise, I suspect in a properly vented system you're just not going to get much, I sure don't nor do several I know of. Mine vents to the carb vacuum fitting from the intake mounted valve and I get little or no vapor.
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The older I get, the faster I was.
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02-21-2017, 10:09 AM
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Join Date: Aug 2013
Location: Canandaigua,
NY
Cobra Make, Engine: SPF MKII Riverside Racer FIA
Posts: 2,496
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I would not to be too concerned about running a line from a catch can back to the oil pan to return any oil. There should not be that much oil venting into catch can. If there is a copious amount, then you should have the engine looked at.
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Last edited by 1795; 02-21-2017 at 10:10 AM..
Reason: forgot something
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02-21-2017, 12:31 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,415
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Not Ranked
If your area doesn't require the use of a PCV valve for emissions, don't run one....
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02-21-2017, 02:11 PM
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CC Member
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Join Date: Aug 2014
Location: Syracuse,
Ny
Cobra Make, Engine: Superformance #2660, FE-406
Posts: 372
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Not Ranked
Quote:
Originally Posted by blykins
If your area doesn't require the use of a PCV valve for emissions, don't run one....
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Your comment got me thinking, is there not some thought a PCV may help with a potential rear main seal leak in an FE based motor keeping pressure down a bit?
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The older I get, the faster I was.
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02-21-2017, 02:14 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,415
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Not Ranked
As long as pressure is vented, there shouldn't be anything to cause seal leaks.
PCV valves can cause a lot of problems: 1. It's difficult to find a PCV valve for every engine combination 2. If guys don't stay on top of things, you end up pulling oil down into the intake manifold, which causes oil consumption. |
02-21-2017, 05:41 PM
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CC Member
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Join Date: Aug 2014
Location: Syracuse,
Ny
Cobra Make, Engine: Superformance #2660, FE-406
Posts: 372
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Not Ranked
Thank you, I guess I learned something today I was never really sure about.
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The older I get, the faster I was.
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02-21-2017, 09:39 PM
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CC Member
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Join Date: Sep 2003
Location: San Jose,
Ca
Cobra Make, Engine: SPF #1436 514
Posts: 1,488
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Not Ranked
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02-22-2017, 05:46 AM
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CC Member
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Join Date: Aug 2016
Cobra Make, Engine:
Posts: 107
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Thanks everyone. Very helpful.
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