Oil in Valley?

[99F350Michael]

I changed the 3 oil rings on the fuel drain because there was diesel fuel in the engine valley.

After a week, I noticed fluid in the engine valley and I thought I messed up the new o-ring procedure.

However, this evening I finally took a good look and after cleaning it up with paper towels, I discovered it was oil in the engine valley.

I did an advanced search to try and find answers to the cause of this problem.

What is the most common culprit for this? I don't want to dive into this without getting some opinions on this.

I am looking at the HPOP replacement o-rings, but also wonder if the plug should be replaced too...

Thanks!

[jasons 7.3 powerstroke]

if the oil is toward the front then yeah prob. hpop o-rings leaking or even the oil tank / timing cover upper gasket leaking..

if from rear could be turbo pedastal oring leaking..

is leak more in front or rear? pics would help also..

[99F350Michael]

Thanks...
After looking a little closer it looks like the oil is coming from the bottom of the turbo...so I am going to look at the turbo pedastal.

[campbellflage]

might want to look into a gutted pedastal and ebpv while since you have to remove the turbo anyways.