[INNOCNT]

Just started this evening,, Hubby and I will have it done by tomorrow.

He's just figuring out the best place to mount the can with the bracket he requested.

Looks like the metal bracket that supports the fuse block is going to be the place. The supplied 'hockey stick' bracket fits really well there and is high enough so that the can be accessed easily to be emptied.

The amount of crankcase vapor getting back to the clean side is very minimal, I'm thinkin the flow is reversed only when the engine is started as the vacuum would be zero prior to starting.
Once running then the clean side acts as it should and supplies clean air to the crankcase and the dirty side has slightly higher vacuum as its right on the intake manifold.

Posted picture is of my smaller original catch can after 2 weeks of driving. Fricken gross,, I can't believe this is what's being 'dumped' back into the IM and GM figures that this has no effect on the intake valves to run a factory catch can.

 

[jrsixx]

Holy crud Batman ! That's a lot of oil in a couple weeks. After more and more reading, I think I'm going with the RX can and breather combo. From what I've found since asking that question, it seems that any time you're at WOT or other simar low vacuum situations, there's not enough draw for the PCV to work. At that point, excess engine pressure forces oil into the clean side. The RX breather eliminates the fresh tube altogether, theoretically eliminating nearly 100% of the oil that will find its way to the back of the valves. When I get it, install it, and figure out the whole posting pics thing, I'll put some up.

 

[INNOCNT]

Yes for sure,, WOT would do that,,, wonder if that's why (I believe it's RX) drill out the steel PCV insert on the firewall side valve cover, more flow at wide open throttle??

The clean side breather option would work well too I'm sure,,, them come in different colors too yes?

I'm not sure if there would be enough clearance under the engine cover for one of those - but maybe,,, hope so :thumb:

 

[jrsixx]

Yeah they come in different colors and they replace the filler cap I believe, so clearance shouldn't be an issue.

 

[INNOCNT]

Oh I see,,, I didn't look at them closely enough I guess,, that'll look really neat!!

So your just going to plug off the clean side PCV line then? Line 610 from the engine pic I posted...

 

[jrsixx]

I haven't looked at it yet, but in my head I plan on taking the line out completely and blocking off both ends with factory looking quick connect fittings with dead ends, basically caps.

 

[INNOCNT]

:thumb:

 

[INNOCNT]

POLRCUB, did you get your can installed?

Yes indeed,,, eliteengineering catch can installed. Also did her first oil change and sent that off to Polaris Labs for analysis, so we'll see how much crude I collect in the next 1000km's or so.

Hoping the volume of the can will hold out till next service,,,,

 

[jrsixx]

Pics? Did you drill out the nipple? ( that kind of sounds dirty)

 

[INNOCNT]

Pics? Did you drill out the nipple? ( that kind of sounds dirty)

He he,, but no, on this application ( engine and vehicle) IMO I don't think it's necessary.

No pics,, posted below is a image from member FortNox,, my catch can is pretty much in the same position, but I have the hockey stick bracket and it mounts to the steel support bracket that supports the fuse block.
With the holes already provided on both the OEM bracket and on the hockey stick bracket, we just attached the bracket with a couple zip ties.
This way one can take it off for Dealer visits.

If you need some close up pics I could take some tomorrow for you?

 

[jrsixx]

Not a big deal as far as close ups. From what Tracy (from RX) said, drilling out the nipple, ok we'll call it a barb from now on, is a must. Ordered my RX today, ill post some pics when it's done.

 

[INNOCNT]

Not a big deal as far as close ups. From what Tracy (from RX) said, drilling out the nipple, ok we'll call it a barb from now on, is a must. Ordered my RX today, ill post some pics when it's done.

Okay sounds good,, did Tracy mention why they figure it necessary?
Eliteengineering doesn't for their Corvette and Camaro applications, just curious as to why is all.

 

[jrsixx]

My understanding is that it keeps the "barb" from getting plugged up and partially restricting PCV flow. When that happens, pressure builds and forces oil to back up on the clean side, that's why people are getting oil at the TB. I thought a breather oil cap was the best solution, but Tracy said only for really hard driving/race applications. Thought that was pretty cool that he could've sold me another $40 part and opted to talk me out of it.

 

[IndeedSS]

Here is a good thread showing the internal PCV passage I was talking about on the 2.4l and what it takes to modify for a catch can. Begin at post 5.http://www.skyroadster.com/forums/f25/2-4l-turbo-pcv-mod-oil-catch-can-actually-works-37951/

 

[buickanddeere]

Just started this evening,, Hubby and I will have it done by tomorrow.

He's just figuring out the best place to mount the can with the bracket he requested.

Looks like the metal bracket that supports the fuse block is going to be the place. The supplied 'hockey stick' bracket fits really well there and is high enough so that the can be accessed easily to be emptied.

The amount of crankcase vapor getting back to the clean side is very minimal, I'm thinkin the flow is reversed only when the engine is started as the vacuum would be zero prior to starting.
Once running then the clean side acts as it should and supplies clean air to the crankcase and the dirty side has slightly higher vacuum as its right on the intake manifold.

Posted picture is of my smaller original catch can after 2 weeks of driving. Fricken gross,, I can't believe this is what's being 'dumped' back into the IM and GM figures that this has no effect on the intake valves to run a factory catch can.

Looks exactly like the moisture and dirt filter on my shop air compressor.

 

[New to the Nox]

It looks like the 2.4l already has a catch can. The EVAP tub empties into the intake which has a box under the opening. This collects all the fluid. Just remove the main plastic intake (not sure what to call it) and tip it over so the fluid runs back out the hole that EVAP is connected to.

I know that this was an older thread but I wanted to bump this info up.☺

 

[JayTee2014]

That is not really a "catch can" like an oil catch can for ( PCV ) positive CRANKCASE ventilation.
The I4 has an internal PCV system with no access to it.

What you found is a baffle in the intake chamber which happens to just catch some moisture and fuel vapors from the fuel tank.

Also, under some conditions like near full throttle acceleration and coasting down long hills, combustion vapors can back up into the intake manifold and end up in the intake resonator baffle.

 

[New to the Nox]

That is not really a "catch can" like an oil catch can for ( PCV ) positive CRANKCASE ventilation.
The I4 has an internal PCV system with no access to it.

What you found is a baffle in the intake chamber which happens to just catch some moisture and fuel vapors from the fuel tank.

Also, under some conditions like near full throttle acceleration and coasting down long hills, combustion vapors can back up into the intake manifold and end up in the intake resonator baffle.

Yes, just realized my mistake. Found this tube and it's name here
http://www.wholesalegmpartsonline.com/showAssembly.aspx?ukey_assembly=388032&ukey_make=1024&ukey_model=14503&modelYear=2011&ukey_category=19400&ukey_trimLevel=25216&searchString=Air%20filter

It is #20 called HOSE. ENGINE CRANKCASE VENTILATION

I am getting alot of moisture through that hose mixed with oil? I just dumped a bunch out after driving 500 miles last Friday across Iowa and Wisconsin in subzero temperature.

No it isn't from the coolant since that is not losing any and I just did a compression test and the cylinders look really good.

 

[New to the Nox]

I just unhooked and looked at the tube that was being discussed here at the point of entry to the crank case. Bone dry...Even looks a little dusty inside. :shrug:
Is it supposed to be that way?
I have been having moisture in my oil and it's not from the coolant and since it's been very cold I figured normal. 20 minute drive to work. But the long trip albeit in subzero temperature and having so much moisture plus some of the dreaded milky white on the dipstick has me wondering. I just had oil change done the previous day Pennzoil ultra.

 

[New to the Nox]

Thanks Jayt

I became confused by this line at the beginning of the thread.
"
On the I4 2.4 DI, GM does not use a PCV valve per say, they are using a EVAP Emmissions Purge Valve (#508) which is mounted directly onto the valve cover via part # 528 and then is tubed over (part #532) to the intake side."

That obviously should be dry.... It's an EVAP lol