I have a 1985 ford f250 6.9 with a early model BANKS system. I have oily residue blown over the top of the motor and i noticed some oil pooling in the turbo. here are some links to the pictures.

 

 

If I had to guess I would say the the oil getting by the CDR is getting blown out the bottom of your airbox from the boost pressure. I'm not familiar with the banks systems so I can't say for sure.

 

Mine did that and it was the turbo seals. See if you have any play in the wheel of the turbo if you can move it at all up, down, sideways any thang its bad good luck.

 

Where is the hose on top of the CDR running to?
Where does the other hose on the CDR go to?

That is a funny looking CDR, looks like it is upside down from how Ford, International and ATS has them sitting.

No real good way for the excess oil to drain back into the engine.

 

Good catch Dave, Banks stuff is so good it'll drain oil uphill!

With the amount of mess on the intake, sure didn't seem to me like the Turbo was leaking that bad.

-Enjoy
fh : )_~

 

Im not sure what the abbreviation of a CDR is can you explain? Is it the unit on the driverside of the intake plenum?

 

In the above picture, if you look to the right of where it says "Banks" there is a tuna can looking deal with a hose coming off it towards the front of the motor over the cold air intake tube.

That tuna can looking thing is the CDR, It should be in a position that drains the oil back into the motor. The CDR is basically the same as a PCV on a gas motor. It's purpose is to draw the vapors out of the crankcase separate the liquids, drain the liquids back to the crankcase and burn the vapors.

What looks like is happening is any oil vapor sucked up the CDR tube is draining into the CDR versus away from it.

My POV on it!

-Enjoy
fh : )_~

 

In a normal NA IDI engine the CDR is loacted on the rear of the intake throat.

Where the tube is hooked to the top of the CDR, it would normally be pointed down and hooked to a short tube that goes through the valley pan.

The left side in the picture would be against the back of the intake so any vapor can be drawn into the intake and burnt.

Where does the hose run to when it disappears at the bottom of the picture?
What is the back of the CDR connected to?

In this picture you can see the ATS CDR location, rear of the drivers side rocker cover painted silver.
And the port the hose is hooked to is down against the rocker cover, so any oil seperated from the vapors can drain back down into the rocker cover.



The hole you see in the back of the CDR is tied into the tube from the air cleaner to the turbo when everything is hooked up.

 

ok sorry for the delay. Been very busy at work with scheduled power reductions. Lots of rework in the substations and highvoltage switchgear. Here are a few more photos.

 

 

 

here is my photobucket link

Image hosting, free photo sharing & video sharing at Photobucket

 

I really can't see the images to well, images show up dark on this lousy monitor I'm setting behind.

However to me it doesn't look like there is very much oil in the turbo intake snail, I would expect to see more oil if the Turbo was leaking internally. Especially bad enough to create that mess.

I would say it's more like the oil feed line is leaking or the oil drain back is leaking. I do see the Turbo center section is pretty oily.

But none of that covers the amount of oil on the front side of the intake inlet.

Is the IP Gear cover leaking and oil getting blown back by the fan??

To you, Where does it look the oiliest??

-Enjoy
fh : )_~

 

In this picture, did you unhook the CDR rubber tube from the open fitting. If you didn't, that is where your oil is coming from. The CDR is pulling crank case vapor and routing it down the tube to the fitting and drops back into the oil pan. If it isn't hooked up it going to throw that oily vapor back and all over.

I have never seen a CDR hooked up that way but I think it's a real good idea to drop the oil back into the engine, not into the intake.