The importance of a oil catch can

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Old 12-19-2009, 09:22 AM
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breather is in no way emissions legal, but a catch can can be (depends on how much the inspecter wants to be an ass), but it still should be cause you are not disableing the crankcase ventultion with it being reburned by the engine, you just happen to be adding an expansion chamber to it


also i just noticed you are in cali, and because it does not have a CARB exempt sticker, you might have to put it back to stock every time you want to pass emissions

Last edited by friesm2000; 12-19-2009 at 09:25 AM.
Old 12-19-2009, 07:31 PM
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Originally Posted by Rajca
yup. used on air compressors. simple, cheap, and effective.
Thats what Im using. It was stupid cheap.
Old 12-19-2009, 11:37 PM
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Originally Posted by friesm2000
breather is in no way emissions legal, but a catch can can be (depends on how much the inspecter wants to be an ass), but it still should be cause you are not disableing the crankcase ventultion with it being reburned by the engine, you just happen to be adding an expansion chamber to it


also i just noticed you are in cali, and because it does not have a CARB exempt sticker, you might have to put it back to stock every time you want to pass emissions
its cool, im used to it. At least its not yearly like inspections for other states. I plan on making my own catch can with one of those inline air compressor filters. I see one at harbor freight for like 6 bucks so im gonna see if they have it in stock. Plan to buy the fittings at home depot and the hoses at my local auto parts store.

should be pretty easy to swap back and forth since its just held on by some hose clamps. Trouble is trying to mount it away from heat since the polycarbonate container is only rated to 140F
Old 12-20-2009, 02:32 AM
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I have had mine zip-tied to thee strut tower bar right behind the intake for a few months with no issues.

Keep in mind that it is a small container, so you have to keep an eye on it and make sure to empty it every now and then.
Old 12-20-2009, 12:10 PM
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yea, I'll see if I can find a bigger "container". Everytime I open my intake plate up, there's pools of oil sitting inside the intake manifold.
Old 12-20-2009, 12:27 PM
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do you guys remember what diameter hose i need for this?
Old 12-20-2009, 05:31 PM
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15/16" IIRC

Make sure what you get is rated for fuel/oil.
Old 12-20-2009, 11:49 PM
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I bought the cheapo "catch can" from harbor freight for $6.99 and 2 barbed hose connects but they were both 1/4in. 15/16" seems really big, is that outer diameter?
Old 12-21-2009, 12:04 AM
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Whoops, 5/16"
Old 12-21-2009, 12:16 AM
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lol

but the only filter they had that I wanted had a 1/4 in/outlet. I'll look at home depot later. I still gotta pick up hose clamps, I forgot those.
Old 02-07-2010, 01:04 PM
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I was thinking of ordering http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT this can. Will I need new tubing also and what/where can i buy it?
Old 02-07-2010, 01:18 PM
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i had that same exact one. i used my own hoses bc those blue one look like shit and then u need an adapter that goes from 3/4" (for the front valve cover, i think its 3/4") to the inlet size of the catch can. i picked up an adapter at murrays. forgot which one. now i just have a breather. no catch can
Old 02-07-2010, 01:41 PM
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Originally Posted by Rajca
i had that same exact one. i used my own hoses bc those blue one look like shit and then u need an adapter that goes from 3/4" (for the front valve cover, i think its 3/4") to the inlet size of the catch can. i picked up an adapter at murrays. forgot which one. now i just have a breather. no catch can
whats the difference between a breather and a catch can? thnx for the info also.
Old 02-07-2010, 01:48 PM
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a catch can catches any oil vapors that can get into the intake

a breather is just like a filter. lets teh vapor vent out into the air.
Old 02-08-2010, 10:01 AM
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I checked my TB yesterday, clean as a whistle with over 10k since I installed it & the catch can.
Old 02-08-2010, 02:19 PM
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I <3 my catch can.
Old 02-08-2010, 10:07 PM
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still trying to install mine. Im trying to figure out how to stop my inline compressor filter from leaking air since its a suction but the filter was made for compression.
Old 02-08-2010, 10:20 PM
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Question

Originally Posted by aznboi2424
still trying to install mine. Im trying to figure out how to stop my inline compressor filter from leaking air since its a suction but the filter was made for compression.
no such thing as vacuum, just absolute 0 psi (atmospheric is 14.7 at sea level BTW)(so only true when it is below relative pressure)


anyways where is it leaking first of all, maybe we can help you
Old 02-08-2010, 10:33 PM
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why does the oil going into the motor really matter? it gets burned..

it's not like it's hp related.

it's piece of mind more than anything no?
Old 02-08-2010, 10:42 PM
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because it coats everything in the intake, also helps to contribute to carbon buildup on the valves and such (but a quality oil will also help prevent that, from less fuming and such)


also on a FI car with an intercooler, it can coat the intercooler, which then in turn loses efficiency, which means hotter intake air charge temperature, so less power; so it can easily be HP related when you got an intercooler
Old 02-08-2010, 10:47 PM
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tru
maybe one day i'll get around to it...

when I take my manifold off and clean it (before I paint it) I may do that to keep her clean
Old 02-09-2010, 01:51 AM
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Originally Posted by friesm2000
no such thing as vacuum, just absolute 0 psi (atmospheric is 14.7 at sea level BTW)(so only true when it is below relative pressure)


anyways where is it leaking first of all, maybe we can help you
you know what i mean

Its the bottom of the little polycarbonate jar, where the drain is.
Old 02-09-2010, 12:30 PM
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Hmmm. Mine doesnt leak. If I press the little pin on the bottom it will leak.

BTW, you did remove the filter from the housing right? They aren't oil/fuel-safe and they were degrade. I pulled mine out because I didn't want anything of it getting into my motor.
Old 02-09-2010, 02:18 PM
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Originally Posted by aznboi2424
you know what i mean

Its the bottom of the little polycarbonate jar, where the drain is.
where i was thinking you might have meant, just remove and ethier just plug it with a plug or put like a ball valve there, to seal it up
Old 02-09-2010, 02:30 PM
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so like this:
http://www.homedepot.com/h_d1/N-5yc1...atalogId=10053



and that might even be the correct size IDK, you would have to check that


OR

a standard pipe plug (think oil drain bolt)




personally i would go for that valve, with a nipple attached, so you can run a hose down to the bottom of the engine bay, so then no worries of making a mess (drain hose would be good near the oil drain, so as you are draining the oil, you can just open the valve and have every thing go into the drain pan)
Old 02-10-2010, 12:10 AM
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I tried a few things with the original spring valve but i think im gonna end up chucking that and replacing it with a metal hole cover. Or a rubber cork.

that valve looks cool but my hole is small, probably only the diameter of a pencil. I'll try to just plug it then unscrew the bowl when i need to empty it.

Yea, i removed the filter element.
Old 02-10-2010, 03:02 PM
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valve is only for a 1/4" hole, picture is just LARGER then life size, so should work just fine, but your hole might also be 1/8

so to figure it out, take the bowl down to home depot and test fit a valve or two, and buy the one that fits; PROBLEM SOLVED
(also you don't need a full port one, that just the acutally opening on the valve itself, so you can get away with a standard port one [that was just the first one i found], and you pay more for a "full port" valve anyways)
Old 02-10-2010, 10:52 PM
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well another problem is attaching it to the bowl, its not threaded so thats a problem.

i'll see how my plan works out this weekend.
Old 02-10-2010, 11:15 PM
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Originally Posted by aznboi2424
well another problem is attaching it to the bowl, its not threaded so thats a problem.

i'll see how my plan works out this weekend.
that might be a problem , was thinking it would be threaded

but still easy enough, just stuff some RTV sealent up the hole , let it cure/dry/harden (whatever you want to call it), then problem solved

and to seal it up from inside the bowl, just put a little dab on your finger and stick your finger to the bottom and smear it a little

Last edited by friesm2000; 02-10-2010 at 11:20 PM.
Old 02-11-2010, 12:22 AM
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i dunno man, I rather have a bolt and washer or some kinda hardware. I would be scared that it could come apart and get sucked in the intake.

its a pretty strong suction at 6k lol
Old 02-11-2010, 04:18 AM
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what are we plugging up?
Old 02-11-2010, 11:11 AM
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The nipple on the bottom of the filter tube. Im not sure why though. Mine stays closed.
Old 02-11-2010, 11:33 AM
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so getting one catch can is only 1/2 the battle... technically we need 2 catch cans, one for each valve cover. So i shall order 2 catch cans then.

Sall good.. this stuff helps emissions out i'm SURE... and prevent much of that oil burning at WOT i'm sure.

Just gotta decide which color and size catch cans to get.
Old 02-11-2010, 12:49 PM
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how about 2 of these...?? are they too big tho... 750ml capacity seems a little MUCH lol..

and they are probably heavy too eh?? :-(

I want to get aluminum so it looks sexy under the hood.. someone wanna point me in the right direction.
Old 02-11-2010, 03:09 PM
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Originally Posted by aznboi2424
i dunno man, I rather have a bolt and washer or some kinda hardware. I would be scared that it could come apart and get sucked in the intake.

its a pretty strong suction at 6k lol
it be basically the same stuff as our oil pans are sealed with, so i don't see what the problem be , plus you be leaving the valve installed, and just filling it up with rtv sealant, so the valve would still be providing it strength from being metal

Originally Posted by Rajca
what are we plugging up?
see flamerboy's comment

Originally Posted by CL-S progression 01
how about 2 of these...?? are they too big tho... 750ml capacity seems a little MUCH lol..

and they are probably heavy too eh?? :-(

I want to get aluminum so it looks sexy under the hood.. someone wanna point me in the right direction.
as long as they fit, they would be better due to the larger size, (aka it takes longer for the air to pass through, so more time for it to separate that last bit of oil), plus it just means you won't have to drain it as often

Last edited by friesm2000; 02-11-2010 at 03:12 PM.
Old 02-11-2010, 03:16 PM
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Originally Posted by friesm2000
it be basically the same stuff as our oil pans are sealed with, so i don't see what the problem be , plus you be leaving the valve installed, and just filling it up with rtv sealant, so the valve would still be providing it strength from being metal
Hondabond FTMFW!
Old 02-11-2010, 03:44 PM
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Originally Posted by civicdrivr
Hondabond FTMFW!
expensive shit though, but love how it comes in the aerosol can, makes it easy to spread out easily and even


but you can get a tube of rtv sealent for less $5, compared to like $15 for the hondabond, since he only would need a couple dabs of the stuff

Last edited by friesm2000; 02-11-2010 at 03:48 PM.
Old 02-11-2010, 04:23 PM
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True.
Old 02-11-2010, 06:46 PM
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why do some oil catch cans have a drain plug and others have a 3rd hose connector at the bottom... like this obx one

http://cgi.ebay.ca/OBX-Red-Universal...item518fdca2c2
Old 02-11-2010, 06:57 PM
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shit i may buy 2 of THESE... they look soooo damn good

http://cgi.ebay.ca/Simota-Red-Oil-Ca...item414cf1851f

This next link shows the hardware it comes with.... look at that brace they give you... soo nice

http://simotausa.com/silveraluminumoilcatchcan-2.aspx

Last edited by CL-S progression 01; 02-11-2010 at 06:59 PM.


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