I don't really understand your question. The block drain port is way above the oil level. If there were any oil in the line it would fall down to the pan port. Any crankcase pressure would be equal on either side of the oil in the drain line below the block port and there would not be any pool of oil in the upper part of the drain line.
I've done a couple K03 Vanagon installs, but both on 1.6TDs. On both I made a flange and a tube coming off it pointing at the port on the pan. That allowed PERFECT clocking. I just bent the supply to match. I've looked for pics, but haven't found one yet.
Here is my setup which I really have no clue as to what it is besides a K03 Turbo. I have never seen the need to have the drain hose go to the oil pan since it looks all down hill to me. This photo is a little deceiving as its a little off angle and it does look like it goes up hill a tiny bit. But I assure you that it does not - what manifold and drain hose am I running? Can anyone tell from this photo? OilDrain by RockOcean.com, on Flickr
The block drain is still downhill from the turbo in a vanagon when using the AAZ exhaust manifold. Teeing into the block drain would have a benefit. Because the vanagon turbo oil return port on the pan is at below the oil level, there is some potential risk that excess crankcase pressure could push oil from the pan up the return line and past the turbo seals. Teeing to the block drain would remove that possibility.
Quote from: libbydiesel on October 28, 2012, 09:17:51 pmThe block drain is still downhill from the turbo in a vanagon when using the AAZ exhaust manifold. Teeing into the block drain would have a benefit. Because the vanagon turbo oil return port on the pan is at below the oil level, there is some potential risk that excess crankcase pressure could push oil from the pan up the return line and past the turbo seals. Teeing to the block drain would remove that possibility.Sorry to dust off an old thread but I am looking for what the subject says a picture of this oil return set up for A AAZ in a Vanagon with the K03 turbo. Anyone have one thanks!
Here's a cheap windage tray;http://www.hansdieselparts.com/037115220BOilPanBaffle.htmIt's Prothe, but I wouldn't worry too much about a part like this.
Here's my set-up with a K14Took a bit of work to make a tube, weld it to the old threaded end I cut off the original straight tube and get it bent just right but it's at 6:00 with the engine at 50 degrees.