Efi pcv

[Nightstick]

Thx ransil

 

[DirtDonk]

Yeah, I hear you. And yes, that 90° pressed-in metal barbed hose fitting is what I was alternately referring to as a nipple or a barbed hose fitting. And it's not even truly "barbed" either! Rats!
Never really was 100% comfortable with the term "nipple" for a hose fitting, but only because it became too generic and wasn't descriptive enough in some cases. So now I'Ve used it for so many years to describe similar things, heard it described that way by others too, and haven't found many reasonable alternatives. So it becomes generic.

But hey, I'm all for correctness in terminology here, so if there's a more specific (and historically correct) term, I'm all for learnin' it. I'm always on things like "crank" and "turn over" and "Heim" and "HEI" and "Posi" and three or four other semi-misspoke terms, that I'll be the last to argue in favor of an incorrect one!
So what do we settle on here?

I call the thing on the tire a valve stem, which I pretty much regard as THE correct term. Only used nipple for that a couple of times that I remember. But I'm sure you could though, without anyone not understanding the part you were talking about.

The other "nipples" I mentioned, that were molded into the intake tube between the filter and TB, are not always barbed, so they'd just be a "hose fitting" maybe?. Or a nipple? Hell, I don't know!

Anyway, at least we were all thinking near enough this time to make it work.
I've mentioned a couple of times over the years that we need a thread dedicated to Correct Automotive Terminology, where we can put forth, and argue for and against certain terms. Kind of fell on deaf ears though.

Paul

 

[Steve83]

We're talking about different fittings then. The ones I'm talking about are all upstream of the throttle blade.

The nipple is forward of the throttle, but IIRC, the journal is ported behind it.

Does that mean this is a Speed Density system then?

Yes, the donor for Frank's eB was an '88 F150, and F-series didn't get MAF until '94 (optionally) or '96 (all <8500GVWR).

Some have it in the tube (MAF), some in the housing (SD?)

Right.

.

but if you're running a factory tube that doesn't include the nipple, and a cone style filter right ahead of the MAF, there is no convenient fitting to hook the valve cover to.

Well, I'm not a fan of open-element air filters (overpriced underperforming ad hype), but if you must, try to find one that has the PCV breather fitting in its backplate (they exist), or add one there.

...there is that nice little 90 degree 3/8" barbed fitting just ahead of the TB that's soooooo convenient.

Yeah, but convenience isn't the same as functionality - if it doesn't work, it doesn't matter how easy it is. I helped a guy at OCBR (sorry, I can't remember his name) straighten out his PCV system. He had the hoses fairly short & neat, but the system was totally backward. Eventually, we got it set up correctly, but the hose routing was more complex.

...in front of the blades, do you still feel that there's anything in your info that's pointing to that not being a good location?

Just what I posted above - it's cold, dumps sludge across too many other ports, and I think it meets the bore behind the throttle plates. If it's actually UPstream of the plates, that only eliminates one problem...

I gotta cure for the pcv question, Im not running any stinkin pcv valve...

The PCV valve does more than just regulate the airflow - it also prevents backfires or water from entering the crankcase. And it's a cheaper/easier/better restriction than the typical shadetree can fabricate. Too much flow not only pulls oil up into the intake; it also causes poor idle, a lean mix, and intake/combustion chamber deposits. If you have EGR (and you should), it also causes solids in THAT system, too.

NIPPLE to me means a rubber one way valve.

The common meaning is anything that a flexible (rubber, plastic) hose can be slid onto and create an air-/watertight connection, with or without a hose clamp. That applies to any plumbing usage; cars or buildings. It can also mean a short threaded section of hard pipe. Browse your local hardware stores & read some of the packaging. A hose barb is just one style of plumbing nipple; any tube with an enlarged spot (like Nightstick's photo, or those on the radiator) will also work.

I've mentioned a couple of times over the years that we need a thread dedicated to Correct Automotive Terminology...

Like this? Automotive Terms & Abbreviations

 

[Nightstick]

That's one hell of a list steve, thanks!!!

Now that I've figured out what a nipple is I can start figuring out the rest.

 

[ransil]

so what was the original question ? ;D

 

[Nightstick]

I think it was something about pcv lines or valve covers... Looks like I did hijack the thread, sorry!