elibenson: Thanks for the info! You've probably guessed I am not familiar with these models- I'm more of a VW TD guy, but I love diesels and have driven a turbo PSD and loved it. Wouldn't mind having a good, big van if the powertrain is sound.
Anyways, my friend is even less knowledgeable about his van than I am. He said it was "prone to vapor lock" but it sounds like you know better. Can I just bleed the air off? I'm hoping it's something I can do with a few simple tools. If I need to replace lines, again- I hope it's just time consuming and not too difficult. I have been tinkering with cars, trucks, and motorcycles for years (even replaced and engine and transmission successfully!) but I would still not say I'm a mechanic. I have lots to learn.
Sounds like the replacement of fuel return lines and their washers, o-rings, and clamps is money well spent.
I haven't heard back from my buddy yet but I'll post an update when I do. Thanks again-
Matt
btw, are these pretty solid motors if maintained?