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Chris
Dodge Dakota
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10/19/2004
03:52:42
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 Subject: PCV System
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Message:
Is there any advantage to removing the pcv valve that dumps air into the intake system and replacing it with a breather valve that blows air directly into the atmosphere? I know that this is a violation of federal emissions laws so please do not bring that here. I have heard that this will slightly help power production by removing some of the heat from the intake process. This is refering to where the PCV expels its gases into the engine intake stream. If this does provide benefit in regard to performance would attaching a breather to where the engine runs gases back to the crankcase help as well?
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Seth
Dodge Dakota
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10/19/2004
20:43:35
| RE: PCV System
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Message:
you're not going to gain anything noticable, if anything at all. Your PCV system is designed to rid the crankcase of blow-by gases, moister etc. and then burning it during the combustion process. If anything you're going to hurt that engine becuase blow-by gases contain acids that will deteriorate seals, bearings etc. So dont remove your PCV valve or alter the system, theres no type of noticable gain if any gain.
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Bob Lincoln
Dodge Dakota
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10/19/2004
21:12:36
| RE: PCV System
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Message:
Right, you'll just foul your oil very quickly with water, gasoline and acids. Before cars had PCV systems, oil changes were required every 1,000 miles. Don't do that to your engine. It didn't do anything to hurt you, did it?
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Chris
Dodge Dakota
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10/20/2004
00:22:40
| RE: PCV System
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Message:
I'm confused. Letting the blow by gases out into the engine bay through a filter would eventually eat up gaskets and seals and such?
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RadioMan
Dodge Dakota
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10/20/2004
08:50:35
|  RE: PCV System
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Message:
My Father-In-Law once removed a PVC system from a
older car. He thought by plugging off a vacuum
line he would gain horse power.
Within one hour driving time, his oil turned into
soap suds and foamed all over the place.
Needless to say, he replaced everything.
To change the subject a bit, I also seen my
Father-In-Law spray 5/56 oil on his belts one day
before he took a 100 mile trip. His belts were
squealing! About two hours later his battery went
dead and the engine was a bit over heated.
dah
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Sneezer
Dodge Dakota
JOIN HERE
10/20/2004
10:19:34
| RE: PCV System
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Message:
The PCV valve is best left alone. The crankcase filter on the other side is a different beast entirely. It does not run off a vacuum, and is hooked directly to the airbox instead of the intake. You can put a crankcase filter on it with no problems.
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Bob Lincoln
Dodge Dakota
JOIN HERE
10/20/2004
12:48:20
| RE: PCV System
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Message:
"Letting the blow by gases out into the engine bay through a filter would eventually eat up gaskets and seals and such?"
No. Letting them languish in the crankcase through passive venting can deteriorate engine seals and eat up bearings faster.
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