I have a stock intake on a 98 civic lx and I noticed when changing the air filter that oil is getting into the intake and into the throttle body, is that supposed to happen? If not what could be the reason for this?

 

no its not supposed to happen lol..is there any noticable leaks like valve cover gasket might suck up oil if its leaking

 

Yeah i didn't think so lol that line that goes from the valve cover to stock intake box, it's coming from that line

 

i would go to autozone and pick up a breather for like 5 bucks and just put it on the valve cover so u dont have that line going to the intake..that should solve the problem

http://image.hondatuningmagazine.com...her_filter.jpg

 

Appreciate your help

 

Clean, and or replace your PCV valve.

 

Positive crankcase pressure is vented into your intake via that hose you mentioned. You will always get a little oil residue that gets sucked up into your intake. The hose is there for emissions reasons. If you have a little oil that is ok, if you have a lot you have a problem. You should clean out all the oil and put everything back together. Odds are is you just have years of residue built up. Check your intake again in a few weeks and see what has built up. Then you can determine if you have an actual problem. If your motor is actually pumping oil out of the breather a 5 dollar oil filter is not goin to be your fix because it isn't going to hold back the oil from running down the back of your motor. Also aggressive high RPM driving will cause more vapor and residue to come out of the breather.

 

never seen ANY oil in my intake. If you do, its not normal. Op, your pcv likely needs to be change or at the very least cleaned with some carb/brake cleaner.

 

you can have some get into it sometimes but in very very small amounts from the breather hose. somes times its mostly build up. but i mean really small like a tiny film around the hole, if you have it on your tb and intake arm check your pcv.

 

The car has been siting for a year, I just picked it up and am new to Hondas, I never go past 3500 rpms since I want to gve the motor time to recover from a long sit, It was a lot of oil but def oil, I'll clean the pcv

 

Thats why it recirculates to your intake, so that it burns fumes and residue that comes out of your valve cover, emissions so it doesn't vent to atmosphere

 

Dumb question but where exactly is that valve located? Can I get right to it or hae to remove certain things?

 

above your oil filter on the back of the block if you have a y8, easiest to do if you have your oil filter off

 

You're correct. OP The PCV valve is NOT recirculated to the intake. It goes to your intake manifold....

 

Yeah stock motor for 98 lx ej6, I don't know the names of the motors lol I just left 240s for
Hondas so there are some things I'm new to

 

Well if you have a y7 its in a different spot, so figure out which engine you've got lol

 

I believe the guy was saying that if your pcv gets clogged your engine pushes more out of your valve cover vent, so thats why you should change it

 

How do you know what motor you have? Is it engraved on the block?

 

Google lead me to saying its a d16y7

 

then its under your air filter and fuel rail, in that area

 

clean you intake arm and drive for a week or two. since you said it sat for a YEAR. also clean your pcv and then drive it for that time then come back and tell us what you get.

 

The oil comes from the stock breather, although you shouldnt be getting much in there unless your piston rings are in crappy condition or you have a blown PCV valve as there shouldnt be much pressure up there.

 

It looked like over time it just built up, I have been driving it so next I'll clean or replace that valve

 

yea I recently replaced mine its about $3.

 

I have a 1999 honda sabre car...not the bike and I'm noticing a huge amount of oil build up in the air intake housing....I just wanna know where the PCV valve Is to replace it and is there anything else I should change or check while I'm at it???