I finally did something with my lame PCV system
Life after death
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From: In a place called Hell
Yes I know I just resurrected an old thread. I just purchased the same Moroso breather can from Summit as well. My can is closed though (no filter attached) and located behind the driver side headlights. I have some questions for you Schmoo. If I understood you correctly you removed the stock breather chamber on the back of the block.
Where does your Moroso catch can mount to?
About how much oil blow by do you think the can catches with a gutted PCV valve?
If you gutted the stock PCV valve on a B18B, then ran a hose to a catch can with a vacuum source connected to the can as well, would that pressurize the crank case.
Here's a picture of how mine is routed. There's no breather chamber on the back on my block (00 LS). The Moroso can has been installed on my Integra for about a week and nothing came out when I drained the can. When I removed the top of the catch can there was a strong smell of a oil/gas mixture.
Where does your Moroso catch can mount to?
About how much oil blow by do you think the can catches with a gutted PCV valve?
If you gutted the stock PCV valve on a B18B, then ran a hose to a catch can with a vacuum source connected to the can as well, would that pressurize the crank case.
Here's a picture of how mine is routed. There's no breather chamber on the back on my block (00 LS). The Moroso can has been installed on my Integra for about a week and nothing came out when I drained the can. When I removed the top of the catch can there was a strong smell of a oil/gas mixture.
Last edited by carta79; Oct 5, 2006 at 07:48 PM.
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My setup is sort of half assed at the moment and has been changed from what it was initially when I posted this thread. I am now running a single hose from the valve cover nipple to the can with an open PCV valve. Essentially, the PCV valve is just a stopper at this point and all my crankcase gases come out of the valve cover into the can. Some time in the future, I plan to either get some -AN fittings tapped into the front of the valve cover and run to a can or run block fittings to the can after removing and plugging the breather box like how the Endyn can is setup.
So far, the way this is set up is just fine. At idle, I can see oil vapors coming from the filter on top of the can. I have the can mounted to the battery box via a hose clamp loosely holding it on. Ghetto but functional.
Gutting the PCV valve is unnecessary unless you are boosted and want to do it ghetto-style like I did. Your PCV valve should be open at all times unless you have a misfire. The positive pressure will close it. It is problematic during boost because anytime the pressure is positive, the PCV valve is closed, so those gases remain trapped when they need to be evacuated causing blown ring lands.
I don't catch much oil in my can. I have yet to empty it, so it may not be as efficient as I think it is. The way you have yours set up is perfectly fine on a naturally aspirated motor.
Sorry, I can't be more help. It is one of those things that I know I should do correctly, but money is an issue and the fact that this setup is working just fine. Once/if I blow out my ringlands, I will do things the "correct" way.
So far, the way this is set up is just fine. At idle, I can see oil vapors coming from the filter on top of the can. I have the can mounted to the battery box via a hose clamp loosely holding it on. Ghetto but functional.
Gutting the PCV valve is unnecessary unless you are boosted and want to do it ghetto-style like I did. Your PCV valve should be open at all times unless you have a misfire. The positive pressure will close it. It is problematic during boost because anytime the pressure is positive, the PCV valve is closed, so those gases remain trapped when they need to be evacuated causing blown ring lands.
I don't catch much oil in my can. I have yet to empty it, so it may not be as efficient as I think it is. The way you have yours set up is perfectly fine on a naturally aspirated motor.
Sorry, I can't be more help. It is one of those things that I know I should do correctly, but money is an issue and the fact that this setup is working just fine. Once/if I blow out my ringlands, I will do things the "correct" way.
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From: Irvine CA
It works because the gases from the motor creates pressure that needs to be released which is where the PCV comes into play, not really a sucking but a blowing. It appears the catchcan works more as a bypass but I could be wrong. W/O a setup that works the gas has to find another place to get out, hence seals like the oil pan and what not.
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From: Texas
I've been researching alot about PCV setups latley. This is one area I want to be positive about before I start my motor for the first time. Heres some good info. One of them actually tests the common setups with a "Dewyer Magnehelic Pressure Gauge."
http://www.honda-tech.com/zerothread?id=697498
http://www.honda-tech.com/zerothread?id=1199935
http://www.honda-tech.com/zerothread?id=935871
http://www.honda-tech.com/zerothread?id=697498
http://www.honda-tech.com/zerothread?id=1199935
http://www.honda-tech.com/zerothread?id=935871
Thread Starter
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Joined: Jul 2004
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From: A forum with actual tech
It works because the gases from the motor creates pressure that needs to be released which is where the PCV comes into play, not really a sucking but a blowing. It appears the catchcan works more as a bypass but I could be wrong. W/O a setup that works the gas has to find another place to get out, hence seals like the oil pan and what not.
www.ufc.com
Joined: Sep 2004
Posts: 2,920
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From: Irvine CA
Life after death
Joined: Jun 2003
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From: In a place called Hell
Well I gutted my PCV valve and ran the hose to my catch can. I then custom mounted a small breather on the can and blocked off the vaccum nipple on the IM. I hope I don't get owned by a misfire. It should be good for keeping some blow by vapor out of the combustion chamber.
That's interesting when I look at the Helms diagram on the PCV system, it shows fresh air being drawn from the intake arm.
My setup is sort of half assed at the moment and has been changed from what it was initially when I posted this thread. I am now running a single hose from the valve cover nipple to the can with an open PCV valve. Essentially, the PCV valve is just a stopper at this point and all my crankcase gases come out of the valve cover into the can. Some time in the future, I plan to either get some -AN fittings tapped into the front of the valve cover and run to a can or run block fittings to the can after removing and plugging the breather box like how the Endyn can is setup.
So far, the way this is set up is just fine. At idle, I can see oil vapors coming from the filter on top of the can. I have the can mounted to the battery box via a hose clamp loosely holding it on. Ghetto but functional.
Gutting the PCV valve is unnecessary unless you are boosted and want to do it ghetto-style like I did. Your PCV valve should be open at all times unless you have a misfire. The positive pressure will close it. It is problematic during boost because anytime the pressure is positive, the PCV valve is closed, so those gases remain trapped when they need to be evacuated causing blown ring lands.
I don't catch much oil in my can. I have yet to empty it, so it may not be as efficient as I think it is. The way you have yours set up is perfectly fine on a naturally aspirated motor.
Sorry, I can't be more help. It is one of those things that I know I should do correctly, but money is an issue and the fact that this setup is working just fine. Once/if I blow out my ringlands, I will do things the "correct" way.
So far, the way this is set up is just fine. At idle, I can see oil vapors coming from the filter on top of the can. I have the can mounted to the battery box via a hose clamp loosely holding it on. Ghetto but functional.
Gutting the PCV valve is unnecessary unless you are boosted and want to do it ghetto-style like I did. Your PCV valve should be open at all times unless you have a misfire. The positive pressure will close it. It is problematic during boost because anytime the pressure is positive, the PCV valve is closed, so those gases remain trapped when they need to be evacuated causing blown ring lands.
I don't catch much oil in my can. I have yet to empty it, so it may not be as efficient as I think it is. The way you have yours set up is perfectly fine on a naturally aspirated motor.
Sorry, I can't be more help. It is one of those things that I know I should do correctly, but money is an issue and the fact that this setup is working just fine. Once/if I blow out my ringlands, I will do things the "correct" way.
Last edited by carta79; Oct 5, 2006 at 07:51 PM.
driver
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Can I bypass the PCV valve and run straight to a catch can with a breather? I already have the valve cover breather running to a catch can.