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I just got my X a couple weeks ago. I got rid of my '06 Charger R/T for it. My first mod to the new X is an Oil Catch Can. I had it on my Charger and wanted to see if I could re-use of the X. I don't know if it really needs it, but I figured what the hell. The purpose of the Catch Can is to take the Oil Vapor out of the Air being recirculated back to the Intake from the PCV System.

I got the Catch Can from a company called Billet Technology. Here is what I did to make the install work.

The only place suitable to mount the catch can that there was enough room was off the Vertical Support on the Passenger-side of the Radiator. There was a hole already there, but it was not large enough for the diameter bolt I needed to use. I drilled out the hole some to fit a 10-1.5 x 20mm bolt. I used a metal washer and a couple Neoprene Washers to protect the paint there.

I had to get a couple smaller fittings for the Catch Can as the Hose needed was about 3/8" compared to the -10AN Size I was using. I got 10' of -6AN Nylon Braided Hose to connect to the smaller 3/8" fittings on the Engine and Catch Can. I routed the hose and Zip-tied in a few places to secure in place. The Hose was a little tight on the Nipples on the Motor and the one on the back of the Motor was a pain with as tight as the Hose was. A -8AN Hose would have worked great I think. I used the Stock Clamps on the Motor Nipples and a couple Hose Clamps on the Catch Can to finish securing everything. Cranked her up and revved a couple times and all seemed good. I'll check after a day or two and make sure everything stays put and may try and get the Hoses on the Motor to go on a little further as they are barely over the Barbs on the Nipples.

The Airbox is to the right and the front of the truck to the left in the first pic.


The Hose you can see well is from the Catch Can to the Intake Manifold. The one going to the Can is below and behind there. You can't really see it.

 

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Interesting. I haven't really noticed a blow-by problem with the Xterra, but I am looking forward to hearing what you see between now and a few thousand miles.
 

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Discussion Starter #3
Updated with pics. Everything seems good after a day of driving and there was just a couple drops worth of oil in it. I will update after a few weeks with pics of oil captured.
 

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^^ I guess I'm very ignorant...but can someone please help a noob as to what the purpose of this mod is.. :( good work making it fit :) .....i just have no clue what the F it does....:tard:

I understand it takes oil out of the air btw...I just don't know the exact application of these and what are they completely necessary on (i know they aren't on X's...)
 

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Discussion Starter #5
The air from the PCV system gets recirculated to the intake for EPA reasons. The don't want the oil vapor being released to ATM. This can also collect on the roads. Over time the oil will puddle in the intake and it gums up valves, pistons, and cumbustion chamber too. It's more predominant on higher HP motors. My 5.7 L in the charger I had depending on how hard I drove it, I would have about 2 oz of oil every 4k miles. Just think over the life of the car how much would be consumed during combustion. I know in the Hemi's the computer would pull timing if you didn't have a catch can and there was too much oil vapor in the intake air. I had the catch can and thought I would try and re-use it. I will let you guys know how much oil I start collecting. This might determine if it's really warranted and if others should consider doing this as well.
 

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Thanks for posting. I have the one from Big Bully for my Magnum but I never installed it maybe I'll try it on the X instead. Were you on LXforums and do you still have your LX?
 

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Discussion Starter #9
Thanks for posting. I have the one from Big Bully for my Magnum but I never installed it maybe I'll try it on the X instead. Were you on LXforums and do you still have your LX?
Yeah I was on LX forums. I had an '06 Charger R/T but I traded it in for my brand new X. If you have the 5.7 or 6.1 in your Mangnum, I still have a K&N CAI for sale. Didn't get any interest in the classifieds on there.
 

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The air from the PCV system gets recirculated to the intake for EPA reasons. The don't want the oil vapor being released to ATM. This can also collect on the roads. Over time the oil will puddle in the intake and it gums up valves, pistons, and cumbustion chamber too. It's more predominant on higher HP motors. My 5.7 L in the charger I had depending on how hard I drove it, I would have about 2 oz of oil every 4k miles. Just think over the life of the car how much would be consumed during combustion. I know in the Hemi's the computer would pull timing if you didn't have a catch can and there was too much oil vapor in the intake air. I had the catch can and thought I would try and re-use it. I will let you guys know how much oil I start collecting. This might determine if it's really warranted and if others should consider doing this as well.
Thanks man I am interested to find out what you observe in the can after some driving. let us know...if it's a lot it may be a mod I will consider as well. Don't want a gummed up engine...ya know :)

Great job!
 

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I used to be a Honda guy..and I put an oil catch can on, I was very amazed on the goo it picked up. I didn't want all that stuff getting into my new engine.
 

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Yeah I was on LX forums. I had an '06 Charger R/T but I traded it in for my brand new X. If you have the 5.7 or 6.1 in your Mangnum, I still have a K&N CAI for sale. Didn't get any interest in the classifieds on there.
Thanks. Unfortunately the Magnum is a V6 but I may check with you when I find an SRT8 I like when I get back to the North America in a few months.
 

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Discussion Starter #14
Well, after only about 175 miles I have collected about a teaspoon worth of oil. I am pretty surprised. I wasn't expecting that much yet. I will keep checking and update when I change the oil at about 3k or so.
 

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Discussion Starter #15
There's not much oil in the recirc. I made a DIY intake runner and slapped a filter on that tube. Its been on a long time and the filter has yet to show any oil.
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I think the one you are talking about is on the intake tube. The one I am reffering to is off the intake manifold itselft. There is a tube that comes out of the bottom rear of the intake manifold and goin to the upper rear left side of the intake manifold. The one on the intake tube is where air filtered from the air box get drawn into the crank case. The PCV sytem relieves positive pressure, and the other draws air in I believe as the engine is cooling down and pressure in the crank case is dropping.
 

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I changed my Oil after 2500 miles today. I wanted to go ahead and switch to Synthetic. I emptied my Catch Can and probably had about 2 oz in it. Here are a couple pics of what I collected.


 

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Discussion Starter #18 (Edited)
Man it really suprises my how much oil/nasty gunk this thing catches. Since it has gotten cold it has been catching all the condensation that builds up after the engine cools down. I was complely full when I changed my oil last after about 2500 miles from when I emptied it. It was full again after only about 1500 miles since I changed my oil. It is was this choclate milk looking stuff with thick gunky stuff at the bottom. Prior to getting cold, it was close to normal oil looking. I am going to have to start checking every 500 miles or so and see how fast it is filliing up. I am glad all that nasty crap is not getting ingested though.
 

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Thanks for the great post marshall9779!

I was wondering what would happen if the catch can got neglected for a period of time? And from that, I wonder how easy or feasible it would be to drill & tap the bottom of the can to route some hosing to a remote reservoir so it can hold more and be emptied easier. Though I'm sure it would have to be lower so gravity would assist the oil moving down.
 

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Discussion Starter #20
I dont think it does any damage if you let it get full as it will be pulling in what it normally would except it will be in the form of smal drops instead of a vapor. I don't think it would be worth making an extra resevior. I just know now that I need to check more often in winter months. I am still in awe that I am collecting more with this V-6 that I ever did with my 5.7 Hemi especially since I drove that car a lot harder.
 
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