Well I just finished reinstalling my intake (oil leak) and realized that the inside of my brand new intake (was completely clean a few months ago) was pretty well oil soaked along with the tb ccv hose inlet. The back intake ports on the cylinder head along with the intake manifold's back 4 port had plenty of oil residue.

I'm looking to delete the pcv system to see if that helps cure my problem and was wondering what is removed, how much is blocked off, and what breathers to run.

thanks

 

Not a wise idea. If you delete your pcv system you will blow oil from parts of your engine that you did not even know you had..lol.

 

I was under the impression as long as you had a breather setup you wouldn't have to worry about this

 

Why on earth would you want to delete a PCV system?

 

why not? if its the emisions your worried about maybe you should be driving a prius. personally i am not such a big fan of all that oil going through my intake

just put breathers on both valve covers and cap off both the intake pipe and intake itself. and if your worried about the minimal oil that will get under your hood then maybe you should look into a catch-can kit

 

The PCV keeps harmful gases out of the crankcase. That's why.

 

and you dont think that breathers on the valve covers will achieve the same function?

 

They don't provide as good as scavenging as a breather. There is no positive flow.

 

have you ever seen a problem caused by replacing the pcv system with breathers. losing a little bit of positive flow seems worth it to me to keep oil out of your intake system, which answers the original question "why would you delete it" that i responded to. dont forget that cylinder blow-by will continually push out the harmfull gasses that you speak of

 

You edited your post #5 to add info about breathers. The absence of that info is why I posted my response to yours.

I don't tear engines down all day long, so no, I have not seen a comparison of engines run with breathers vs. PCV. All I can say is relying on rising vapor is not going to be as efficient as positive flow for reducing harmful gases. Before the closed PCV system, even engines in the 1950s with breathers had "road draft tubes" that caused a suction effect to remove crankcase vapors while the car was in motion.

 

i am sorry, i should have included that information originally. i edited so that we could stay on track and answer the original posters question while debating the risks and rewards of doing so

i guess all in all its up the person individually

 

It is a long term thing that you are not going to notice on a daily basis. I fully understand the concern about oil coming in through the TB. That's not too good of a thing, either.

 

I fixed that problem a long time ago Auto Zone has a breather there that has a port on it and has a little filter inside so it does not suck the oil into the engine Sorry I don't have the part number but it works great it's about 1 1/2 inch round with a port on the side and it's black runs around 3-4 bucks.

 

How about just putting an oil separator in-line with the PCV?

 

I think I know the one you're talking about