I pulled my intake manifold off yesterday to install a NOS plate system and noticed that I had oil in my #1 primary runners and a little in the #4. I looked into the head a saw that the valves on the far outside of the head in both #1 and #4 cyl. the valves had quite a bit of build-up on them, sorta of like a sludge caked on them. Taking the manifold apart there was a film of fresh oil on the back part towards the firewall. I just completely rebuilt the motor top to bottom and have maybe a total of 3000 miles on it. I am running 10W30 and going to be switiching back to 5W30 and the car has a total of 66,000 miles on it. I was also 1 quart low at 2000 miles.
So the question is where is this oil coming from. Want to fix it before I reinstall everthing so I can have easier access to all the little pieces. I am wondering if the PCV valve is cause of this mess. HELP>>>

 

The oil is coming from the PCV valve (see diagram below). You will need to install an oil catch can to prevent the oil from being fed back into the intake manifold. You can go to my webpage at http://www.geocities.com/bretq/DIY_O...tructions.html for information on hooking up an oil catch can. Also, here is a nice diagram which shows how the oil catch can works.



Larger image: http://www.imagestation.com/picture/...d.gif.orig.gif

 

your PCV vavle is bad...u can get a new one at a normal auto parts store, or it can be that u need a oil catch can..


[Modified by TeamTooQuick, 10:04 PM 3/15/2002]