air breather question

[AccordSe91]

I'm wondering if an air breather will leave some oil fumes on the valve cover or on the engine..

any feedback?

[Nycxeracer]

The answer to both your Questions is Yes! Air Breather's are pretty much pointless, and if you want to have something decent, I'd go with the "oil catch can" design. There is a How-To in the DIY section, I believe Cokinut did it a while back. Air breathers, which if you want to have one, more power to you, are not really helping or hurting anything. Sorta for looks to some degree.

[AccordSe91]

thanks

I'll go for the oil catch can, I don't want oil on my airbrushed valve cover ..

[h22sparkle]

[PRIMOCB7]

thanks

I'll go for the oil catch can, I don't want oil on my airbrushed valve cover ..

weird.. i've been using breather filters for so long now and no oil on my valve cover


but i did install my DIY in-line "oil catch" filter between the IM and PCV/valve cover.
if you're running a NA setup, those large, metal oil catch cans won't really do much either. a boosted setup has more blowback gases/oil vapors which is why some people use them.

[JDMxDB8]

im running NA, so will having breathers help at all?

[PRIMOCB7]

im running NA, so will having breathers help at all?

instead of running a hose from the intake piping to the valve cover(it helps build up oil vapors in the intake piping, tb, intake manifold) you can either cap it off, or use a breather. if anything, a oil-catch can or device between the PCV/valve cover and the intake manifold would benefit more.

[Granite CB7]

instead of running a hose from the intake piping to the valve cover(it helps build up oil vapors in the intake piping, tb, intake manifold) you can either cap it off, or use a breather. if anything, a oil-catch can or device between the PCV/valve cover and the intake manifold would benefit more.

Yes, I have 1 breather on my valve cover to keep the intake/t/b/IM cleaner. I capped the intake inlet off. The catch can on the PCV is one the best things you can do to keep the IM clean, it works so well! Here's some pics of what I have:

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It's also good to keep the breather VERY clean, I rinse mine out w/ gas and that does the trick to let it flow freely and not clog up.

Dan

[JDMxDB8]

thx guys. If I decide to cap off the intake inlet, what do I use?

[AccordSe91]

on my oem modded air box tube I plugged the hole with a 3/8" or ½" X 1" long ss bolt or you can put a breather.

[Granite CB7]

thx guys. If I decide to cap off the intake inlet, what do I use?

If you look in my 1st pic, that gray thing on my stock intake, that is a 1/2" ID Thread protector used to cover the threads on bolts to protect them from getting damaged. The hardware store is the place to get them!!! Take a knife and bevel the edge on the intake, the thread protector will go on much easier and then clamp it!!!

Dan

EDIT: stock intake would use a 1/2" ID cap while aftermarket may be 3/8" not too sure