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Old 01-05-2012, 12:14 PM   #1
Mr.Chow
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Default Oil Leaking From Valve Cover in a strange spot

So I'm guessing this would be easily fixed by replacing these grommets, but what would cause enough pressure to actually force oil out this way?? I've probably owned around a dozen hondas and have never seen anything quite like this.

Any ideas?

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Old 01-05-2012, 12:25 PM   #2
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Default Re: Oil Leaking From Valve Cover in a strange spot

It's called crankcase pressure. Change the grommets and seals.
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Old 01-05-2012, 12:30 PM   #3
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Default Re: Oil Leaking From Valve Cover in a strange spot

that's what i figured...would a oil catch can prevent this?
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Old 01-05-2012, 12:38 PM   #4
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Default Re: Oil Leaking From Valve Cover in a strange spot

what i ment by that is does a catch can relieve some pressure in the head?
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Old 01-05-2012, 12:43 PM   #5
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Default Re: Oil Leaking From Valve Cover in a strange spot

I run one of these.
http://www.ebay.com/itm/VENTED-OIL-C...434252&vxp=mtr
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Old 01-05-2012, 12:46 PM   #6
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Default Re: Oil Leaking From Valve Cover in a strange spot

^^Never saw that before. I will have to look into it.
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Old 01-05-2012, 12:47 PM   #7
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Default Re: Oil Leaking From Valve Cover in a strange spot

He's the only one that makes those.
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Old 01-05-2012, 02:02 PM   #8
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Default Re: Oil Leaking From Valve Cover in a strange spot

Put some Honda bond on the bottom of the gasket... It how many years old...
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Old 01-05-2012, 02:33 PM   #9
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Default Re: Oil Leaking From Valve Cover in a strange spot

Wouldn't hurt to change your pcv valve just in case it's not venting properly.
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Old 01-06-2012, 08:29 AM   #10
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Default Re: Oil Leaking From Valve Cover in a strange spot

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He's the only one that makes those.
Yea, I looked into it last night, but couldn't find anything anywhere. I appreciate it!
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Old 01-06-2012, 09:32 AM   #11
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Default Re: Oil Leaking From Valve Cover in a strange spot

BTW. It does work. All the previous speculation about them in other threads aside.
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Old 01-06-2012, 10:11 AM   #12
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Default Re: Oil Leaking From Valve Cover in a strange spot

^ if it were cheaper I'd buy one too for myself...I have the valve cover breather connected to a hose down to the ground and gutted my stock PCV valve and put a hose on that to the ground...no issues for the 12k miles at 235whp
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Old 01-06-2012, 10:18 AM   #13
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Default Re: Oil Leaking From Valve Cover in a strange spot

Quote:
Originally Posted by grumblemarc View Post
BTW. It does work. All the previous speculation about them in other threads aside.
Never seen that before but seems like a good idea ill prob have to order one thanks for sharing that..so do you still run a catch can with this oil cap?
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Old 01-06-2012, 10:19 AM   #14
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Default Re: Oil Leaking From Valve Cover in a strange spot

I bet you could probably make something like this easier than you think.
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Old 01-06-2012, 10:21 AM   #15
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Default Re: Oil Leaking From Valve Cover in a strange spot

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Never seen that before but seems like a good idea ill prob have to order one thanks for sharing that..so do you still run a catch can with this oil cap?
I don't but TBH never got around to installing one even though I wanted to. Won't have that option after the build.
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Old 01-06-2012, 10:24 AM   #16
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Default Re: Oil Leaking From Valve Cover in a strange spot

Would you recommend still running a catch can if I were to order that?I have a boosted b18c5 .63 10psi
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Old 01-06-2012, 10:32 AM   #17
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Default Re: Oil Leaking From Valve Cover in a strange spot

I also wont be running stock pcv system or black box will have it blocked off
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Old 01-06-2012, 10:33 AM   #18
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Default Re: Oil Leaking From Valve Cover in a strange spot

I plan on it. Can't have too much ventilation. I'm removing the PCV system and routing it into the catch can.
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Old 01-06-2012, 10:36 AM   #19
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Default Re: Oil Leaking From Valve Cover in a strange spot

Ok thanks for your input and the link
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Old 01-06-2012, 10:36 AM   #20
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Default Re: Oil Leaking From Valve Cover in a strange spot

Quote:
Originally Posted by Dc4LsTeG View Post
Would you recommend still running a catch can if I were to order that?I have a boosted b18c5 .63 10psi
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I also wont be running stock pcv system or black box will have it blocked off
Catch can if you want to save the environment, open line to the ground if you're gangster

Black box just catches the vapors and drains it back to your oil, I gutted my PCV valve and kept the black box. Some people weld AN fittings on the valve cover and run those to a catch can for further ventilation.
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Old 01-06-2012, 10:41 AM   #21
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Default Re: Oil Leaking From Valve Cover in a strange spot

I know all of that I was asking his personal opinion when it came to how well that oil cap would ventilate the system
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Old 01-06-2012, 10:56 AM   #22
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Default Re: Oil Leaking From Valve Cover in a strange spot

You know all that? Then why would you block off the black box? It's just another place to vent your crankcase...
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Old 01-06-2012, 10:57 AM   #23
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Default Re: Oil Leaking From Valve Cover in a strange spot

Going to be running one of these
http://www.brfittings.com/index.php?...&product_id=82
Click the image to open in full size.
and one of these
http://www.brfittings.com/index.php?...&product_id=62
Click the image to open in full size.
to eliminate the whole PCV/blackbox system.
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Old 01-06-2012, 11:24 AM   #24
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Default Re: Oil Leaking From Valve Cover in a strange spot

Quote:
Originally Posted by grumblemarc View Post
I bet you could probably make something like this easier than you think.
After seeing that the ebay auction is no longer active, I decided to message the seller. He said that they have been discontinued at this time.

I should have a spare oil cap laying around. I might drill it out and cut up an old, eBay intake filter to see what I can do. Probably won't look as nice, but I'll give it a shot I guess!
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Old 01-06-2012, 11:52 AM   #25
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Default Re: Oil Leaking From Valve Cover in a strange spot

It could be a lot of things. As everyone said Start with replacing the PCV Valve if you’re still having the pressure I would suspect rings at well the pressure could be from blow by from worn rings as well. I like running catch cans all on my motors boosted or NA it just keeps all that nasty oil and crankcase gases from being introduced back into the motor.
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