HomeDepot: PCV Blowby Oil Catch Reservoir
07-14-2005, 11:06 AM
#1
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HomeDepot: PCV Blowby Oil Catch Reservoir
Although there has been a thread on this for the 3.5L, I hadn't seen one on a 3.0 yet, at least not written up. So, for about $15 in materials, decided to make one from Home Depot supplies (surprise, surprise). Shiny, pretty "name brand" catch cans can be bought on ebay or performance shops for $50-100, but what's the fun in that!?!?
So....here it is, and a quick writeup:
Materials: Air compressor in-line air/oil filter/reservoir, about 3' of 7/16 hose, a few hose clamps, and the correct fittings. Oh, and a piece of metal to make a bracket with.
As you can see, it is mounted in-line PCV valve>hose>reservoir>hose>intake manifold is the direction it goes in. I bent a steel L-bracket and secured it to one of the intake bracket bolts - seems to be secure.
I have also seen this done using a Fram G3 fuel filter - that is the way alot of Subaru guys do it. I decided to go the above route, but got one of the G3 filters just to mess with also.
As to results....just did it, so no oil buildup, but if you rev the engine under the hood to high rpms, you can see a fine mist of oil getting deposited into the clear reservoir, so looks like it's doing its job.
For those who don't know, this is meant to "intercept" the oil that comes through the PCV valve and is normally routed to the intake manifold, where it gunks up things, burns up, or reduces fuel octane (oil+fuel=reduced octane).
BTW, credit to the 3.5 guy who did it this way first (don't recall who it was)
so, some pics of course:
the Fram filter, just for reference
So....here it is, and a quick writeup:
Materials: Air compressor in-line air/oil filter/reservoir, about 3' of 7/16 hose, a few hose clamps, and the correct fittings. Oh, and a piece of metal to make a bracket with.
As you can see, it is mounted in-line PCV valve>hose>reservoir>hose>intake manifold is the direction it goes in. I bent a steel L-bracket and secured it to one of the intake bracket bolts - seems to be secure.
I have also seen this done using a Fram G3 fuel filter - that is the way alot of Subaru guys do it. I decided to go the above route, but got one of the G3 filters just to mess with also.
As to results....just did it, so no oil buildup, but if you rev the engine under the hood to high rpms, you can see a fine mist of oil getting deposited into the clear reservoir, so looks like it's doing its job.
For those who don't know, this is meant to "intercept" the oil that comes through the PCV valve and is normally routed to the intake manifold, where it gunks up things, burns up, or reduces fuel octane (oil+fuel=reduced octane).
BTW, credit to the 3.5 guy who did it this way first (don't recall who it was)
so, some pics of course:
the Fram filter, just for reference
07-14-2005, 11:31 AM
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Originally Posted by GBAUER
So I see you've been busy at your job again. I want to see it this weekend. I'll find ya, you post-whoring bish!
Good work. Can't wait to check it out.
Good work. Can't wait to check it out.
07-14-2005, 01:13 PM
#8
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Originally Posted by soonerfan
your arent filtering the oil...just storing it and preventing it from going into the intake manifold
07-14-2005, 01:16 PM
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Yes, the filter was about $4, while the other pieces were a little more. BUT, the way I set it up, I can empty it periodically when it fills up. Using the fuel filter, I would have to buy a new one every time it filled up (probably every few months).
Either way would work, I just didn't feel like doing the fuel filter in-line...
Either way would work, I just didn't feel like doing the fuel filter in-line...
07-14-2005, 01:18 PM
#11
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Originally Posted by Jeff92se
If you just use the filter, I assume you just install it inline and be done with it?
07-14-2005, 01:18 PM
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Originally Posted by irish44j
Yes, the filter was about $4, while the other pieces were a little more. BUT, the way I set it up, I can empty it periodically when it fills up. Using the fuel filter, I would have to buy a new one every time it filled up (probably every few months).
Either way would work, I just didn't feel like doing the fuel filter in-line...
Either way would work, I just didn't feel like doing the fuel filter in-line...
good work.
07-14-2005, 01:19 PM
#14
I suppose in the extreme case. I would think the paper would just soak up the oil and keep it in one place. At least until there's enough oil to saturate and cause it to drip.
Originally Posted by irish44j
yep....the only issue I can think of is that if the filter is not situated correctly, the oil could pour out one end -either back to the PCV or into the IM. The way I have it setup, the oil collects in the bottom and cannot possibly flow back. Like I said, either way works though ....
. Never made a write up. Krismax told me how to do it last year...
07-14-2005, 01:32 PM
#16
Originally Posted by irish44j
we'll have to get a gallon-sized filter for you 
Oh, and I know what you look like. I'll find you next to the dumpster!
07-14-2005, 06:01 PM
#17
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Originally Posted by GBAUER
Think they make a 5 gallon version?
Oh, and I know what you look like. I'll find you next to the dumpster!
Oh, and I know what you look like. I'll find you next to the dumpster!
07-25-2005, 02:22 PM
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Originally Posted by seemymaxima
irish44j does this happen to all 2000-2001 models
07-30-2005, 03:42 PM
#26
Loving this idea and will add this to my car next a week along with some other maintiance.
I'm a little scketchy on the write up and have a few questions:
4th gen Stock Intake.
I'll need:
One Oil reserve case
(http://www.lowes.com/lowes/lkn?actio...FA106&pad=true)
Two Of these
Two hose clamps
And 3feet of the 7/16 hose - Is there a more techincal term for that or just say that to any home depot employee and they should know what i'm talking about?
Then how exactly is the installation done?
I'm a little scketchy on the write up and have a few questions:
4th gen Stock Intake.
I'll need:
One Oil reserve case
(http://www.lowes.com/lowes/lkn?actio...FA106&pad=true)
Two Of these
Two hose clamps
And 3feet of the 7/16 hose - Is there a more techincal term for that or just say that to any home depot employee and they should know what i'm talking about?
Then how exactly is the installation done?
07-31-2005, 10:37 AM
#31
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look at the pic at the top. Note the hose that attaches in the MIDDLE of the TOP of the photo (it weaves down to the reservoir). See where it attaches? Now, originally the hose that goes from that particular place goes directly to the PCV valve...just follow the hose. The PCV is basically just below the VIAS actuator assembly.
07-31-2005, 07:36 PM
#32
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welp, i went to home depot and got all the crap to do this today and installed it. Pretty easy and it gave my bored *** something to do. I cant wait to see how much oil I collect!! thanks for the info irish, yet another thing that ive seen you done and then went out and did it myself. Keep it up man.
08-29-2005, 01:39 PM
#33
does any1 have a pic of where the pcv valve is on a 3.5 litre?
i cannot find it for ****, and the mechanic i went to must be handicapped. he did not see it either. unless it's under the engine cover, which he did not take off.
p.s. maybe some1 has a good desciption of where the pcv valve is, not nesessarily a pic.
i cannot find it for ****, and the mechanic i went to must be handicapped. he did not see it either. unless it's under the engine cover, which he did not take off.
p.s. maybe some1 has a good desciption of where the pcv valve is, not nesessarily a pic.
08-29-2005, 01:58 PM
#34
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Originally Posted by chr0nos
does any1 have a pic of where the pcv valve is on a 3.5 litre?
i cannot find it for ****, and the mechanic i went to must be handicapped. he did not see it either. unless it's under the engine cover, which he did not take off.
p.s. maybe some1 has a good desciption of where the pcv valve is, not nesessarily a pic.
i cannot find it for ****, and the mechanic i went to must be handicapped. he did not see it either. unless it's under the engine cover, which he did not take off.
p.s. maybe some1 has a good desciption of where the pcv valve is, not nesessarily a pic.
08-30-2005, 05:35 AM
#38
Originally Posted by chr0nos
does any1 have a pic of where the pcv valve is on a 3.5 litre?
i cannot find it for ****, and the mechanic i went to must be handicapped. he did not see it either. unless it's under the engine cover, which he did not take off.
p.s. maybe some1 has a good desciption of where the pcv valve is, not nesessarily a pic.
i cannot find it for ****, and the mechanic i went to must be handicapped. he did not see it either. unless it's under the engine cover, which he did not take off.
p.s. maybe some1 has a good desciption of where the pcv valve is, not nesessarily a pic.
http://forums.maxima.org/showthread.php?t=265970
08-30-2005, 08:04 AM
#39
This is some good stuff. I installed the oil-separator 3 days ago and there is already some oil collected there! I used 3/8" hose and an inline separator, slightly different than Irish's... Will post a pic later...
