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Got a PCV oil separator installed.

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Old 10-31-2006, 10:23 PM   #1
Twisted
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Default Got a PCV oil separator installed.

Well, I guess I figured out where all my oil has been going. I had been reading up on oil separators and pcv systems for a while, and today, finally decided to hook up a separator. I went to Home Depot, and bought a generic Husky water/oil separator for use with air compressors. I bought the separator, couplings and 3/8" fuel line for about $25. I hooked everything up in about 10 or 15 minutes. Then I went out and whooped the car halfway to God--mashing the gas flat to the floor every chance I got for about 15 miles around town. When I came home, there was probably about a half teaspoon of oil sitting in the bottom of the collector. It's crazy to imagine that that much oil would have gone into my intake/combustion chambers/piston tops. I noticed after trouncing the old bitch, that she idled a lot better when I pulled her into the garage. I also noticed that the car seemed like it was pulling harder toward the end of my raping. I'm thinking that I may have cleared some of that old oil from the intake. I look forward to seeing if the car continues to run better as time progresses, with no oil being sucked into the intake.

I have a question or two. Vristang, feel free. Does anyone else have a separator hooked up? If so, what has your experience been with the device? Also, how much oil do yours collect in X number of miles? Also, do I need the filter element inside the collector?
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Old 10-31-2006, 10:27 PM   #2
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Default RE: Got a PCV oil separator installed.

hey twisted could you tell me how u hooked it up

im interested in this now
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Old 10-31-2006, 10:31 PM   #3
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Default RE: Got a PCV oil separator installed.

just becareful in colder months they tend to draw in moisture...make it look like a milkshake...
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Old 10-31-2006, 10:37 PM   #4
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Default RE: Got a PCV oil separator installed.

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hey twisted could you tell me how u hooked it up

im interested in this now
Sure. Just run a piece of 3/8" fuel line off of your pcv valve into the correct side of the separator. You'll have to buy two brass fittings (one for each side of the separator) with 1/4 inch threaded male connectors on one end, and 3/8 inch male hose connectors on the other end. Then run another piece of 3/8" line out the other side of the separator into the pcv nipple on your intake...you know the one that runs directly to the pcv valve. I used just enough fuel line to not have kinks, and then zip-tied the separator body to that big a/c line that runs off the condensor and over the intake.
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Old 10-31-2006, 10:41 PM   #5
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Default RE: Got a PCV oil separator installed.


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ORIGINAL: grabbem88

just becareful in colder months they tend to draw in moisture...make it look like a milkshake...
Thanks, Grab. I wonder if it gets cold enough here in Cali to do that.
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Old 10-31-2006, 10:44 PM   #6
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Default RE: Got a PCV oil separator installed.

anything that is cooler than your engine bay will generate some moisture...my rpm sucked the filter inside the seperator...almost made a terrible mess.
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Old 10-31-2006, 10:47 PM   #7
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Default RE: Got a PCV oil separator installed.


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ORIGINAL: grabbem88

anything that is cooler than your engine bay will generate some moisture...my rpm sucked the filter inside the seperator...almost made a terrible mess.
So Grab, how often does your separator fill up? Also, did you say that your RPM intake sucked the filter element into the body of the separator? What kind of separator are you running? My filter element is made out of something that feels like stone.
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Old 10-31-2006, 10:48 PM   #8
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Default RE: Got a PCV oil separator installed.

Also, what changes (if any) did you notice after hooking the separator up? Thanks again.
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Old 10-31-2006, 11:10 PM   #9
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Default RE: Got a PCV oil separator installed.

it was from steeda...kinda a joke...what you have is better...mine filled up once,but the cold got to it/moisture...i don't like water in my intake
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Old 11-01-2006, 01:11 PM   #10
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Default RE: Got a PCV oil separator installed.

twisted,

i hooked mine up like this,,,, ran 3/8" line from rear pcv to drivers side installed second pcv on drivers side valve cover, t'd those two together then into the big *** husky separator, then ran single vacuum to intake,, i havent drove it yet but in the shop i have around 30-45 mins of 2000-4000 rpm runs on it and it probably has around 2-3 ozs in the separator,
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Old 11-01-2006, 01:38 PM   #11
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Default RE: Got a PCV oil separator installed.

I bought the same exact setup as you...went to Home Depot and bought the Husky seperator made for compressors. I went one step further though and I custom built a filter to attach to the end. So once it leaves the oil seperator, it goes through a filter and then vents into the atmosphere. It works great and it helps keep crap out of the intake that I don't want in there (like oil and hot gases)
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Old 11-01-2006, 01:44 PM   #12
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Default RE: Got a PCV oil separator installed.

so it sounds like you have created a new vacuum leak for yourself?
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Old 11-01-2006, 01:52 PM   #13
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Default RE: Got a PCV oil separator installed.


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ORIGINAL: ruger311

so it sounds like you have created a new vacuum leak for yourself?
It's not a vacuum. I think you're thinking of something different. This in not a vacuum line, in the sense that air is not getting "sucked" through the seperator. it gets blown though it. if you disconnect it, you can feel a pretty decent amount of air getting blown through. Instead of lopoping it back through the engine, I simply vent it into the atmosphere. Its VERY common for supercharged applications. If you call the Procharger people they even tell you to do it too.

I guarantee there is no vacuum leak. I know this because I have a vac / boost gauge on my A-pillar and can monitor it constantly. If you pull the PCV valve itself you can get a vac leak, but that's completely different.
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Old 11-01-2006, 01:53 PM   #14
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Default RE: Got a PCV oil separator installed.

i've never really thought about doing this but it sounds like a great idea! i think i'll wait a few months though now that it is november and is starting to cool off rather quickly.
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Old 11-01-2006, 02:10 PM   #15
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Default RE: Got a PCV oil separator installed.

oh ok,, forgot you were s/c, that filter idea might work good ill try it later, thanks
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Old 11-01-2006, 02:14 PM   #16
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Default RE: Got a PCV oil separator installed.


Quote:
I guarantee there is no vacuum leak. I know this because I have a vac / boost gauge on my A-pillar and can monitor it constantly. If you pull the PCV valve itself you can get a vac leak, but that's completely different.
samseed, I have a quick question. (sorry to hijack thread for a minute) A buddy of mine has an old kawasaki ninja. When he first bought it, the PCV was one piece of tubing that was looped from a port on one side, around the tree, and back into the motor on the other side. When we first saw it, we thought something had to be wrong, so he cut it in half and has a filter stuck on the end, then it vents to the atmosphere. My whole group of friends that ride cannot figure out, however, why there was a vaccuum on the piece of hose when he first cut it. Then we thought maybe it was more of an equilizer between the heads, but still, why a vaccuum?? the bike got a HELL of a lot louder (sounded like a ****load of valvetrain chatter, then when you plug the hoses, the bike quiets down. Any ideas??

thanks a lot, alex
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Old 11-01-2006, 02:23 PM   #17
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Default RE: Got a PCV oil separator installed.

I've never worked on bikes in any way, but if it runs the same as a car's PCV would, then I may have an explanation for you.

It sounds like a tube was running from the PCV valve to the intake. Under normal operation, gases would cross from the tube and into the intake. If you cut the tube in half but leave both sides connected, you would feel a vacuum from the intake side because the intake is still "sucking in" air (for lack of a better term.)

Like I said, I have no idea how it works in a bicycle, but I imagine the intake works the same and that could explain it.
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Old 11-01-2006, 02:27 PM   #18
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Default RE: Got a PCV oil separator installed.


Quote:
ORIGINAL: ruger311

oh ok,, forgot you were s/c, that filter idea might work good ill try it later, thanks
Yeah, it can cause some issues when running under boost if i don't vent it into the atmosphere especially when it changes from "vacuum" to "boost" and all of a sudden it want's to push the air in the tube the opposite direction By disconnecting it from the intake, i eliminate that problem. And the filter helps with the exhaust smell, etc.

It was common to vent it into teh atmosphere in the past, until the emissions crap came into play. Then manufacturers had to come up with environmentally friendly alternatives. hence the recirculating or the crankcase air, the EGR, the cats, etc.
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Old 11-01-2006, 04:10 PM   #19
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Default RE: Got a PCV oil separator installed.

yeah that crap sucks
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Old 11-01-2006, 04:42 PM   #20
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Default RE: Got a PCV oil separator installed.


Quote:
ORIGINAL: Twisted

Well, I guess I figured out where all my oil has been going. I had been reading up on oil separators and pcv systems for a while, and today, finally decided to hook up a separator. I went to Home Depot, and bought a generic Husky water/oil separator for use with air compressors. I bought the separator, couplings and 3/8" fuel line for about $25. I hooked everything up in about 10 or 15 minutes. Then I went out and whooped the car halfway to God--mashing the gas flat to the floor every chance I got for about 15 miles around town. When I came home, there was probably about a half teaspoon of oil sitting in the bottom of the collector. It's crazy to imagine that that much oil would have gone into my intake/combustion chambers/piston tops. I noticed after trouncing the old bitch, that she idled a lot better when I pulled her into the garage. I also noticed that the car seemed like it was pulling harder toward the end of my raping. I'm thinking that I may have cleared some of that old oil from the intake. I look forward to seeing if the car continues to run better as time progresses, with no oil being sucked into the intake.

I have a question or two. Vristang, feel free. Does anyone else have a separator hooked up? If so, what has your experience been with the device? Also, how much oil do yours collect in X number of miles? Also, do I need the filter element inside the collector?
Glad to hear that it's working for you!!!

I didn't notice any performance difference when I put a separator in place, but it turned out that my valve seals were leaking oil as well.

I was filling my separator with every tank of fuel, so about 225 miles.

If the single pcv doesn't work using a second pcv can help.
I have a pic of my secondary pcv on my site. (I can't access my site from work, or I would post it)
Some folks have had the filter element plug up on them. I think some oils use an additive that binds to the filter material???
My filter didn't plug up, but I saw no need for it and eventually removed it.


As far as moisture gettin into the separator.
It is somewhat normal.
Moisture will normally collect in the crankcase, intake, etc. This is just normal condensation.
An active pcv system helps remove the moisture from the engine.

Having moisture in the separator is not a bad thing.
If the moisture is excessive however, it can indicate a HG issue.

ramble ramble,
jason
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Old 11-01-2006, 04:42 PM
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