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Gunk and a bit of oil in air intake

 
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Old 04-02-2012, 06:56 PM
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Gunk and a bit of oil in air intake

Hey everyone. Ive been wondering, has anyone removed and plugged-up or installed a seperate filter on the breather hose that connects to the valve cover and to the air intake? Just recently i took out the stock air intake to do some cleaning in the engine bay and i found gunk and what appeared to be oil in the intake tube and in the throttle body and butterfly valve. Ive had the car for 6 months and when i first bought it, i noticed the gunk then but i cleaned it up. 6 months later and the gunk is back. The only explanation that comes to mind is the hose that connects to the valve cover. Also, on a stock air intake, there's this extended subsection. What is that for? Ill proved a pick i found online.

So should i plug up that breather hose or install a filter? I mean whats the PCV valve for, i dont see a purpose for that breather hose but then again i may be wrong. Its my first lude
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Old 04-02-2012, 07:27 PM
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Re: Gunk and a bit of oil in air intake

You don't want to plug that PCV Valve unless you want your engine to blow up.
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Old 04-02-2012, 08:00 PM
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Re: Gunk and a bit of oil in air intake

If your piston rings aren't in the best condition, pressure from the combustion chamber is going to "blow-by" the piston rings, into the crankcase, out the PCV valve, and into the intake.

You can install a catch can which should reduce the amount of oil particles that go into the intake, but that's only putting a band-aid on a much bigger problem.
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But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
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Old 04-02-2012, 08:28 PM
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Re: Gunk and a bit of oil in air intake

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Originally Posted by twokexlv6coupe View Post
If your piston rings aren't in the best condition, pressure from the combustion chamber is going to "blow-by" the piston rings, into the crankcase, out the PCV valve, and into the intake.

You can install a catch can which should reduce the amount of oil particles that go into the intake, but that's only putting a band-aid on a much bigger problem.
Oh i know that, but my concern is on the tube that connects from the valve/cam cover to the air intake. The PCV is connected to the Throttle body and i have no intention of messing with that lol. But i can take a picture of what im talking about if youd like. Its the only tube that is connected to the air intake. Actually, if you look at the picture i attached with this thread, you can see the inlet for that tube with the clamp still on it right near the end that leads to the throttle body.

Last edited by KeepUp; 04-02-2012 at 08:35 PM.
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Old 04-02-2012, 08:32 PM
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Re: Gunk and a bit of oil in air intake

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Originally Posted by Cthulhuy View Post
You don't want to plug that PCV Valve unless you want your engine to blow up.
Nope wouldnt want that. I see some people putting filters on the PCV and id get responses about how the filter would simply get filled with oil. Its pointless. But im talking about the breather tube. Its the only tube that connects to the air intake. The PCV connects to the Throttle body. You know what im talking about? If not i can get a picture.
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Old 04-02-2012, 08:32 PM
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Re: Gunk and a bit of oil in air intake

You can put a filter on there and a plug on the air intake but I do believe that is there for some gas saving thing. People who have cold air intakes do it all the time.
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Old 04-02-2012, 08:55 PM
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Re: Gunk and a bit of oil in air intake

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Originally Posted by Sparky65 View Post
You can put a filter on there and a plug on the air intake but I do believe that is there for some gas saving thing. People who have cold air intakes do it all the time.
Do what, plug it up? Because i just bought the V2 intake and after finding that gunk in the OEM air intake, id hate to mess up the aftermarket one but most importantly i want to make sure her heart is in good condition. My other cars dont have anything like this that connects from the valve or cam cover to the air intake.
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Old 04-02-2012, 09:00 PM
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Re: Gunk and a bit of oil in air intake

You can either find a filter that goes on the tube connecting the two OR get a breather filter to put on the valve cover and plug up the port on the intake that usually leads to the valve cover.
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Old 04-02-2012, 09:19 PM
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Re: Gunk and a bit of oil in air intake

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Originally Posted by Sparky65 View Post
You can either find a filter that goes on the tube connecting the two OR get a breather filter to put on the valve cover and plug up the port on the intake that usually leads to the valve cover.
Yeah thats what i was thinking. Ill give it a go and compare the differences with a seperate filter or simply connected into the air intake. Turns out it spits oil and it relieves pressure in the crank case, working along side with the PCV. But im looking at getting a filter for it. Dirty air is a no no.
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Old 04-02-2012, 10:12 PM
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Re: Gunk and a bit of oil in air intake

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Originally Posted by Sparky65 View Post
OR get a breather filter to put on the valve cover and plug up the port on the intake that usually leads to the valve cover.
That's what I did! And that is the extended subsection your talking about that loop close to the throttle body? If so I'm pretty sure it's just a sound muffler that quiets the intake and restricts airflow. Or if your talking about the big box part that connects below the filter that's the intake resonator that does the same thing as the loop except on a larger scale and it's not needed
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Old 04-02-2012, 11:09 PM
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Re: Gunk and a bit of oil in air intake

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Originally Posted by Travis View Post
That's what I did! And that is the extended subsection your talking about that loop close to the throttle body? If so I'm pretty sure it's just a sound muffler that quiets the intake and restricts airflow. Or if your talking about the big box part that connects below the filter that's the intake resonator that does the same thing as the loop except on a larger scale and it's not needed
Haha yeah the loop. And after alot and alot of research, turns out its the crankcase vent hose. Every now and then it would spit oil and hot air which isnt good for performance. So instead, im just going to cap the niple on my V2 and put a crankcase filter on the cam cover. You stated you did that right? What mount diameter size is the filter? Id go out and measure but its dark out. Thanks for the help.
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Old 04-03-2012, 09:00 AM
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Re: Gunk and a bit of oil in air intake

Ooooo yea I'm confusing the 2 diff crankcase hoses. Yea just cap the nipple on the intake, and small filter on the VC. Pretty sure they're a universal size @ autozone/advanced auto parts.
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1995 Honda Prelude SE Turbo; 250whp, 275wtq @ 10psi Soldddd!!!

2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
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