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  #1  
Old 05-22-2002, 07:11 AM
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Oily substance in Intake!

ok guys, I have an oily substance in my intake! what is it and what can i do to fix it??? thx
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Old 05-22-2002, 09:43 AM
hotasshonda hotasshonda is offline
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well im not sure but i know that they do put oil on the filter and maybe some of it went through...but not sure
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Old 05-22-2002, 01:52 PM
civic1991 civic1991 is offline
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Is the oil at the top by the intake manifold? do you have a breather on the intake or is it connected to the valve cover? The hose that connects the intake to the Valve cover is there to lub you throtle body and you manifold. that is why there should be oil in that area.
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Old 05-22-2002, 02:37 PM
darolh darolh is offline
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Lube the throttle body? That's a new one. Not true however.

Oil gets in there from the crankcase ventilation system. It's normal. It's not a bad idea on an older car to take the throttle body off and clean it as it can get gorped up after a while.
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Old 05-22-2002, 05:30 PM
Perfectionist Perfectionist is offline
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Right. If your PCV system isn't funtioning well, or you have excessive blow-by, you will get a build up of crud in the throttle body. Normally, fresh air from the intake should go through that tube to the valve cover. Check or replace the the PCV valve and make sure the hose is in good condition and open.
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Old 05-22-2002, 07:07 PM
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Then once you've sorted the problem take one can of CRC cleaner carb, take the end of the intake off, rev the engine up and start spraying.



Dont worry if the engine nearly stalls, just stop spraying, give it a few revs and get back into it again.
You only need to use maybe a 1/3 of a can or even less depending on how dirty it all looks.

If you do have exccesive blow by then the only way to fix it is an engine rebuild. But a simple spray with the CRC every few months will keep everything in the intake nice and clean and shiny.
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Old 05-22-2002, 09:19 PM
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I'm pretty sure that hot coolant goes into the Throttle Body to prevent it from freezing, if that's what that other guy meant, but I don't see how you could confused that with Oil.
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Old 05-23-2002, 06:35 AM
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Have you all ever heard of a catch can? Gready makes one and I have one. the can takes the place of the hose that connects the valve breather to the intake. It is good for racing and all but after awhile I got PVC problems and throttle stick problems then when I disconnected the can and reattached it the problems went away. what does the catch can catch you ask? why oil ofcourse, and lots of it. So this shows that oil does go into the manifold:greenchai
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Old 05-23-2002, 06:48 AM
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I have a related question for you guys. I have been making a CAI for my CRX. It's made out of aluminized exhaust piping. Now which would be better, putting on a K&N breather or the hose that goes from the valve cover to the intake pipe?
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Old 05-23-2002, 06:54 AM
civic1991 civic1991 is offline
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Use the hose. Out of all the things I've used(Breather, catch can) I like the hose the best.
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Old 05-23-2002, 07:04 AM
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Quote:
Originally posted by civic1991
The hose that connects the intake to the Valve cover is there to lub you throtle body and you manifold
Hahahahahahaha - funniest post ever

Damn - I'd better get some lube for my throttle body as it's bone dry

BTW - your post is completely wrong, but I won't hold that against you
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Old 05-23-2002, 07:41 AM
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Sentanta sense you have the answer to every post on the fourm then you explain the function the hose connecting the valve cover breather to the intake. Because I must have no clue.

By the way I chose lube for a reason.
It's funny
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Old 05-23-2002, 07:42 AM
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What do those Altazzas add, like 15Hp? HAHAHAHAHAHA!!!!!!!!!!!
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Old 05-23-2002, 07:49 AM
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Excess pressure can build up in the crankcase. The tube provides pressure relief.

And why would they want to have oil mixed into the Air and Fuel?
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Old 05-23-2002, 08:01 AM
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Why connect something that relieves pressure form an oil covered area to the intake which inturn connects to the manifold???
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