So this weekend I played 'fix the oil leak', coupled with 'please God I hope this new ICP sensor fixes my idle issue'.
So, lets begin. I have a small leak, it seems to leak from the top of the motor, running down the weep hole, down the passenger side of the block and unceremoniously to the ground.
I started with these parts (you will notice the oversized Glowplug relay - that didn't make it in...
From the back of the motor, I popped the turbo off, here is a look at the o-rings that are directly below the turbo, they were brown (as was the o-ring between the compressor discharge and the motor intake). I will tell you why this is note worth in a moment. You can also see the small ocean of thorns you may remember me cursing early in the build...
With the turbo off, you can also see the ICP sensor that I needed to replace (I hoped...) It is allll the way up on the drivers side head.
And here are the o-rings under the turbo riser block. Note that they are yellow, not brown. All the orings in my new kit were brown. I checked the shaft endplay in turbo and there was NONE. It felt as tight as new. So methinks that sometime recently the turbo was rebuilt, and the orings changed between it and the riser block, but not under it. Needless to say, I left the turbo alone, but the rings under the riser were indeed bad, and probably leaking.
Valley pan was pretty nasty...
So I replaced the orings, and got everything put back together. Unfortunately I couldn't get to the ICP sensor from the back, nor the front. After a quick Google search, I found the quickest way to the sensor was to move the AC compressor. 3 quick bolts.
Old rings and sensor
Now, the leak? Still there!!!

I don't know if it is just residuals or still a leak coming from somewhere. Here is a pic of the turbo out, its dirty, but I figured it was just from the oring leak on the pedestal. Ideas?
Blowby?
So, I still have a leak, I think. If its coming from the top end, I don't know where from. Ideas are welcome.