stangrookie302

Okay you geeks, I recently popped off my intake manifold to install a spacer and I found about a quart of oil inside the manifold and inside the upper intake manifold. The oil is coated inside all of the cylinders especially the number 8. I have a 302, with under drive pully, cold air w/ carb EO because of CA, bbk 70 mm 19lb air meter(which is awesome), stock exhaust mani w/ stock original cats, flow's 14" dual chamber dual exhaust with 2 1/2" tail pipe. Just replaced the MAP. While I had the intake manifold off I checked my PCV and the area of where it is inserted in the crank case. The PCV is coated with oil along with the hose that is hard as a rock. I looked as much as I could inside the area of where the PCV is instered, which isn't a tight fit, and I noticed a screen. I thought that was okay and so I sucked out all of the dirt that I saw in there and I investigated it more and it seems like there is a bunch of small wires, like un-shaven pubic hair, inside this molding of the crankcase. Is that normal to have a "dense screen" in the "molding" to where the crank case vapor is suppose to escape into the intake? Or is my compression ratio to high to where I am pushing all that oil into my intake? BTW I am gettin horrible gas mileage as in 15 on the freeway w/ 273 gears in 5th. Let me know what you people think. NO check engine light and she sounds great except I found oil in my intake. Thanks for your time and any humor is okay by me.

stangrookie302

Okay people, maybe it wasn't a quart but it was enough to make me skip a beat. If anyone knows what the PCV "port" is supposed to look like let me know.

Tony71502

It is supposed to have the wires in there to catch oil.

stangrookie302

Ya, I just looked at rockauto.com and they show everything about the PCV "thang". I noticed it is supposed to look like that and now I'm not worried. Thanks for the info though. I did get my intake back on last night and after gettin a made in somewhere else PCV valve, I was told to get a motorsport PCV for better quality. She runs cooler and I'm gettin better gas mileage. When I went for a cruise my pcv had popped out just a little bit and I could hear a hissing noise, but my intake mani was cool to the touch.

NTGuru

the screen plugs pretty easily it is located in the back of the intake manifold base. about $5 at the auto parts store. the grommet is the other headache. you may need to go to ford for that they get old and break.

stangrookie302

The black thing with two prongs on it came with the PCV but it the grommet doesn't need it. The valve just plugs into the vacuum line and into the grommet. I may input the plastic thing just for ****s and giggles to see what kind of action is presented.

2008gtcs

There is possibility that in addition to a worn PCV, you had a deteriorating gasket seal between the manifold and head on the bottom side and you were ingesting (sucking in) oil and oil vapors from the lifter galley. That could have made the gas mileage worse and eventually fouled your spark plugs too.

stangrookie302

Are you talking about my head gaskets or my lower intake gaskets? I have had the upper intake gaskets replaced once before and nothing. I also have been monitoring my exhaust and I haven't seen any dense blue smoke. I have seen some very light gray smoke but I have only seen that about one inch inside the tailpipe at the end. Nothing that concerns me. Do you think that the oil is not that great in terms of producing enough smoke for me to be worried?

2008gtcs

Intake manifold gasket - each side,

Tony71502

Oil quality has nothing to do with volume of smoke. If it burns it burns.