My son's 85 gs has a thick milky film in the oil fill tube is this a problem doesn't seen to be loseing water, no water in oil and seems to have alot of blow-by even though the motor has about seventy thousand on it . It has a racebeat intake holley carb pacesetter header strait pipe to magnaflow muffler. Any help would be appreciated.

 

To me that sounds like the lung butter. Need better venting. Couple threads on it, I'm not sure how the holleys take car of that. On the nikki's there is a vacuum line from the oil filler tube to a valve that goes into the carb.

 

condensation builds inside causing this lung butter you can hook a vaccum line up to it and send it through the combustion or get tricky and hook a valve system up to a catch bottle and capture all the vapour using vaccum.
seen it done works great

 

Rotary Snot

Someone needs to invent a perfect tool that we can lower in the tube. Engage and pull out all the boogerz.

 

haha, i was just wondering about that today.

 

I'm going to try an inline PCV valve hooked to the automatic tranny modulator nipple and the oil filler tube. Think it will work as well as I think it will?

 

Modulator nipple? Is that the big one on the intake mani below the shutter valve.
I've been wondering what it was for.
I was looking at an old Chilton book for 71-80 Mazda cars, and the pcv goes to the intake, not the carb.

 

Yes. It usually has a very hard rubber cap that once it's removed, usually no longer seals very well, due to age.

Yep, the PCV valve bolts to the intake manifold and has two small holes; each goint into each primary runner.

I don't have much choice on the intake manifold I'm working with. I basically have to use the auto tranny nipple for the PCV. The nipple pulls a vacuum from the rear secondary runner (like the brake booster). Fortunately the primary and secondary runners were channeled pretty largely by the PO when he cut and removed the shutter valve, so there will be plenty of communication to the primary runner. There is also a round hole connecting both primary runners together directly below the carb spacer, and a small channel in the carb spacer itself which should work out ok for the PCV valve.

Ain't nothin' to it, but to do it; got to try it and see how much CAPuccino forms, and whether the rear rotor runs leaner than the front.

 

I had this issue, and fixed it, but when I crawled under my car this week there was the lung butter crap all around mo oil pan...after the car say all winter. I'm guess the constant freezing and thawing allowed moisture to get into the engine and did its thing.