Oil being sucked up through PCV

[airflow89]

I have confirmed that oil is being sucked up through the PCV. I cut out a piece of air filter and stuffed it in the rubber gromet, and then went out and beat her for 30 minutes. The piece of air filter was soaked with oil. The intake is an Edelbrock Performer. Techs at Edelbrock said it was normal, really didn't know that oil was supposed to pool in the intake. Any ideas to reroute the PCV line would be great. Just feed up with the oil being in the intake.

Scottie

 

[HISSIN50]

Welcome to the board.

Do you have an baffle in your intake?

One can run a air/oil separator to knock down some of the oil. Some folks have run a restrictor instead. And some run breathers instead of the former two.

A sig would help people to help you, if you are lookin' for suggestions with possible issues.

Good luck.

 

[Michael Yount]

I installed a catch can in between the manifold and the pcv valve - pretty cheap fix and it catches almost all the oil.

Email me at [email protected] and I'll send you pics.

Do a search here and on the corral under "oil separator" or just "separator" -- you should get some hits on posts where folks tell you exactly which parts to buy and where to get them. But I'd go the catch can - if it's picking up lots of oil you'll have more capacity and won't have to drain it as often.

By the way, it's also often a sign of excessive blow by -- are you boosting the motor? Nitrous? High miles/rings tired?

 

[Kabuki_notch]

first off dont mean to take away from the original poster but I think I may be having the same issues my car runs fine but when ever I really get on it and give it some gas hard it leaks oil and burns off onto my headers I do not know where its coming from if its blowing out the valve cover gasket or what I plan on picking up a breather today to see if that fixes the problem any other ideas? I am running 6lbs of boost

 

[KDK1988GT]

here is what I got

I had the same prob I got an oil separator from Steeda works great..

Here is a link to it....

http://www.steeda.ca/catalogue_product_type_918.asp

 

[Michael Yount]

kabuki - not uncommon with boosted cars. Are you absolutely certain you don't have any path for boost to be entering the crankcase (you removed or put a check valve in the hose from throttle body to valve cover)? And with higher cylinder pressures under boost, blowby is increased. Sometimes it's to the point that the stock pcv system just can't keep up with it - and you need more/bigger ventilation paths.

 

[Kabuki_notch]

Yes the throttle body is capped and the hose from the valve cover is running where it's supposed to according to the install instructions from vortech I havent even begun to check the PCV system what should I look for? because I know for a fact I forgot to cap off the TB and I was blowing oil out of the driver's side valve cover untill I fixed that with the tb cap but now im clueless.
btw thanks for the replys

 

[feifong]

its da heads

 

[Michael Yount]

Well - if you were blowing oil out the valve cover, you're building crankcase pressure. You've got to find out why. If you're somehow boosting the crankcase (are you sure your pcv valve will hold against the boost?), fix that. If not, it's just blow by -- and all you can do is better ventilate the crankcase.

I'm guessing - with the valve cover vent blocked off and pcv hooked up you essentially have no crankcase ventilation under boost. The pcv which is a check valve shuts when boost hits the manifold -- so the only way your crankcase can ventilate the blow by is by forcing it out of seals, gaskets, etc. You need a way to vent the crankcase when the manifold is under pressure. I'd run a hose from the valve cover nipple to the suction side of the compressor, but downstream of the maf. And if you're picking up lots of oil from that location, I'd install a catch can to knock the oil out BEFORE the vapor stream hits the inlet of the compressor.

 

[blown1989saleen]

I had the same prob I got an oil separator from Steeda works great..

Here is a link to it....

http://www.steeda.ca/catalogue_product_type_918.asp

or you could go to your local Wal Mart and pay $12 for a Campbell Hausfeld seperator works great for me.

 

[cjman15]

I need to get one of those seperators... that will tell me if I'm burning oil from tha PCV or if it is my valves leakin'

 

[Scott_B]

I need to get one of those seperators... that will tell me if I'm burning oil from tha PCV or if it is my valves leakin'

just install a clear fuel filter. you'll know right away if the oil is coming from the pcv.

looks like this

http://www.accesswave.ca/~sc0tt/images/pcvfilter.jpg

i used to run a seperator from a local hardware store.

now i just run a Jaz breather catch can. both my pcv and the oil neck line go to it. and i have my TB capped off. Works well so far.

http://www.accesswave.ca/~sc0tt/images/jazbreather.JPG
http://www.accesswave.ca/~sc0tt/images/jazmounted.JPG

 

[KDK1988GT]

yeh whatever works

or you could go to your local Wal Mart and pay $12 for a Campbell Hausfeld seperator works great for me.

sounds good whatever works for ya

I like the steeda one. I can un-screw it drain it and then put it right back on

 

[04sleeper]

Yes the throttle body is capped and the hose from the valve cover is running where it's supposed to according to the install instructions from vortech I havent even begun to check the PCV system what should I look for? because I know for a fact I forgot to cap off the TB and I was blowing oil out of the driver's side valve cover untill I fixed that with the tb cap but now im clueless.
btw thanks for the replys

If you haven't checked the condition of your PCV valve and screen and such I would say it would be a good time to replace it all. I like to usefactory Ford peices for this as they seem to work and fit better.

Also, YES, you need a breather on the valve cover. Something like this.

 

[92GreenGT]

I have a Valve Cover Breather and all the right things done, but I while I had my engine apart I was wanting to add a way to vent from the driver side also, anyone have any ideas how to make something that would help vent under boost?

 

[92GreenGT]

Ttt