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Wootsauce!
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Discussion Starter #1 (Edited)
Alright guys and gals, I've a had a several people ask about the oil catch can that i installed. So i am going to try to explain it the best i can so please read entire post.
IF you need to reference pics they are in my show off thread.

So it goes like this. If you look at a stock Ecotec 2.2/2.4/2.0 they ALL have an air line that goes from the valve cover to the intake. This air hose is there to basically vent all the gassy,oily air from the engine. But if you think about it is just going right back into the engine through the intake and then into the throttle body. Did you ever wonder why your throttle body gets really dirty if you don't clean it for a while, this is one reason.

I am not the first one to do this. The oil catch can can be found on a number of forums, CSS, LCN, ECOtecforums, as well as other vehicle types. They all have done it. There are NO POWER GAINS from this. The oil catch can is basically just to CLEAN the vented air before it goes back into the engine.

The catch can works like this.There is one air hose coming from the Valve cover. This hose goes onto the *IN* side of the Air compressor filter. Next you take a hose from the *OUT* side of the filter and this runs to the air intake. ITS THAT SIMPLE!

Now some people that have put an after market intake (any brand) on there vehicle have just removed or didn't use that piece of hose that connects the valve cover to the air intake. They have put just a breather filter on the valve cover.(small type filter-like the one i have on the end of my SAI tube) Now you can do this, BUT in some vehicles you will notice a loss of sustained air pressure that the engine needs. I tried this just to see what happened and i noticed that the engine bogged down and idled funny. Some people didn't notice that but i did.

Now after all that if your still wondering if it was worth it to do this $30 mod. YES IT WAS. The reason i know it was is because when installed this i removed the throttle body and cleaned it extremely well. I checked it the other day just to see how it was and it is SPOTLESS (still shiny).

So all in all it does what it's supposed- clean the vented air before it goes back into the engine. THAT'S it.

I had this posted in my old showoff thread, figured i would save it with a new thread.

I can add pics later.


ADDED INFO FOR REFERENCE:


Now the way I did mine was a complete custom setup. So I will try to include the basic parts needed.

These are the parts I started with

This is an installed picture


1 - Air compressor filter [Found at hardware store in near the tools/air compressors]

2 - Air compressor nipple fittings for attaching the hoses Found in the same area as filter

4 - 1/2" hose clamps

Length of 1/2" heater hose/fuel hose - I purchased a 4' roll from pepboys from around $5

Those are the basic parts needed to do this. You just have to figure out a way to mount it. I custom made a mount out of thin steel and attached it to the firewall.


Now in order to install this all you do is take a length of hose coming from the valve cover and route that to the "inlet" of the filter.

Then take a length of hose from the "outlet" of the filter and route that to the nipple on the intake itself. See pic for reference

Thats basically it, theres not much too it.

Here are a few "after" pictures. I had this installed for about 6000 miles.
You can see the oil build up on the inlet side of the filter.

In this picture you can see that it actually does do its job

Heres another pic

Another pic
 

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^^^ Will He Ever DIE???

I've been meaning to do this too, After I saw your showoff thread with it, I really wanted to go to the store and buy the part, but I ended up catching the flu and missing work so money got tight. Soon as I get extra cash, the door panel and this will be attacked.
 

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Say What again!
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Have you noticed if the oil level decreases over time?
 

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Say What again!
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Right - but when you have the factory system, it keeps the oil in the engine, just circulates what gets blown by and what not...so I'm wondering if this makes your oil level lower over time...
 

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Wootsauce!
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Discussion Starter #9
Right - but when you have the factory system, it keeps the oil in the engine, just circulates what gets blown by and what not...so I'm wondering if this makes your oil level lower over time...
No, I have never noticed that. (I check my oil fluids regularly)
 

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Oh, all right. Cool.
 

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Thats a wierd looking catch can there. The ones I see are way different looking but anyways where did you get yours? Also there seems to be alot of build up in the tb so im sure that will help
 

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Plumbing department?
 

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Wootsauce!
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Discussion Starter #15
How much oil do you reckon it's catching? Just a ?? oz. over ?? time I mean...
There as never been a measurable amount in the filter to "drain" it so im not sure.

Thats a wierd looking catch can there. The ones I see are way different looking but anyways where did you get yours? Also there seems to be alot of build up in the tb so im sure that will help
Plumbing department?
I got most of the materials from Lowes (Home improvement store)
In the tools section. The filter is an air compressor filter. The hoses and clamps i purchased at Pepboys.
 

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Convenient

Well I am glad that the Lowes and Pep Boys in my area are across the street from each other :amuse:

That bad thing is that it is raining.....and I have no garage. The whole week man! And the damn clouds wait for the weekend....

Did you coat the entry/exit nozzles of the filter with teflon or any similar material to make a seal?
 

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i have an 09 ls(has stupid SAI) and just put an injen CAI/SRI. does this mod restrict air flow?

---------- Post added at 12:57 PM ---------- Previous post was at 12:54 PM ----------

also, what did you use to tie down or prop up your secondary air intake(SAI) hose?
 
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