Under advanced reply, there is a sub section called manage attachments. Click that bar and add or delete photos. Just note only do 3 or so at a time. When you try to upload multiple it usually times out and does nothing. When they are done uploading you can do 3 more and so on per reply.

Or if you have a 3rd party hosting web site you use. The yellow icon with the black mountain above your rely is a img link and post the link in between those. But photobucket does not work.

 

Shame it's not the pcv.
I've tucked my engine bay but do not remember these. Sorry. Best guess is the previous owner bypassed the coolant.
If you search online, you will find a nissan site that will give you access to all the field service manuals for nissan/infiniti. That's what I would do next.

 

You’re right thanks man

I’m assuming I should just plug the intake side.. lol

 

IIRC, that coolant nipple ran a hose to the throttle body. It reads right there on the fsm it's to the upper collector but I don't think so. If it is to the upper collector, plug it for sure & this might be why mucho oil in the c.c. but if it's to the throttle body, it won't make a difference but then again you're in the northeast. No coolant to the t.b. might be an issue in the freezing-*** cold.
You might want to go through everything you can on that car and anything that doesn't look oem, figure out what it is using the fsm, looking for hack jobs that need some tlc.

 

Yes that is a coolant line to warm to throttle body in cold states to keep it from being frozen.

 

Let me know next time you hit NHMS or Thompson! With what clubs do you run with? on weekends?

 

 

I would do a compression test for sure... do it on a warm motor. If old owner boosted the car I wouldn't be surprised if there was a ring issue.. Hopefully not. I had this issue on a boosted engine and it haunted me. Idk I would do a compression test for sure. I would do a leak down as well!!!

 

 

How large of a catch can are we talkin here... Add some pictures, so we don't have to keep fishing for information to help you

 

 

And your oil level is where when this happens? What have you noticed about the oil level over time?

 

 

Oh man definitely do a compression test to put this to bed. I don't think there is any plumbing mistake that would result in that. Wouldn't hurt to take photos of the whole setup for peace of mind
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That's the c.c.? I see a small filter off to the side. IDK, maybe I'm missing something here but it looks to me like there's one hose going to it and that's it?

Put it all back to stock, delete the c.c.. Hose to intake pipe from valve cover on driver side and hose from pcv valve to the lower collector on passenger side and see what happens.

The burning of some oil might not be associated with ring seal. I think that shitty c.c. is getting filled up and the overflows getting dumped into the plenum.

 

That's a vented catch can with the Breather filter removed no? Nothing wrong with that if that's the case

 

Nothing wrong with that assuming there's another hose hidden somewhere. All I see is one hose.

 

I have one line coming from my PCV valve down below the engine. A vented catch can is the same concept except it catches the stuff coming out which is usually just a few drops a week depending on driving style. Only reason I don't run a vented catch can is I don't want it to ever add any restriction to my PCV system under boost.

If you're boosted and you are running a non-vented catch can there is nowhere for the pressure to go. If you're NA then the plenum will still be creating a vacuum (venturi affect) under WOT so you can run a non-vented one to avoid any crankcase odors from making their way into the cabin to reap the benefits of having a crankcase under vacuum (less foaming, less windage, less oil being burned through the rings, less likelihood of oil leaks from main seals etc)

 

I've never seen a c.c. with one hose, not on a vq at least. A line, assuming you mean hose, traveling from the pcv down below your engine would make it pretty difficult for the crank case to ventilate, no?
No vacuum at wot on this here n/a vq.
Guys tend to vent to the atmosphere when fi'd because they end up with oil in their pipes. If it was necessary to vent w/fi then there would be a lot of pricey german and jap. imports smelling like lawn mowers.
I'd dump that c.c., put it back to oem then see if anything changes for the better. If not, the guy you bought the car from lied. That's the engine he boosted and busted.

 

The hose I run is short and causes much less restriction than any vented catch can would. I have to side against going back to OEM, because the oil will be burned at an unknown rate without the catch can to monitor how much is being displaced.

Quite frankly (my apologies). You're not at a full understanding of the whole system, or what the venturi effect is/does. Please let me know if you think I'm incorrect here, but here's what's going on:

At WOT your crankcase will still be under vacuum due to the venturi effect occurring in the lower plenum. I agree, your plenum is not under vacuum. The gold colored baffle plate on your lower plenum causes a vacuum to be drawn when air rushes by it. Even though your plenum is not under vacuum, the section below the gold baffle plate is.

Similar to how a non gravity-fed airbrush works. Also why a car sounds like a helicopter if just one window is open in the back; the window pulls a vacuum on the cabin, which then collapses before being evacuated again. This happens a few times per second which is the sound we hear.





The oil in the FI guys pipes is due to crankcase pressure blowing out their turbo seals. OEM manufacturers vent their PCV systems pre-turbo and have a check valve. This is what people miss when they have their turbo seals blow out on our cars. They only do the check valve on their brake booster but forget to vent the PCV system; or don't know any better.

When a OEM FI car is under vacuum the PCV flow is: crankcase>intake manifold (like ours).
When their car is under boost the PCV flow is: crankcase>pre-turbo>intake manifold





I think you're right about your last statement involving that engine being busted though. It only makes sense unfortunately.