I sold one of my Audi Turbo diesels yesterday, and after it was sold I was still getting some calls about it, and someone suggested I re-post the link to the project page where I installed the Turbo Diesel engine into a 1986 Quattro. So here it is
http://www.motorgeek.com/phpBB2/viewtopic.php?t=17930 if you have questions, you can ask them on either forum.
Thanks for posting this,... the 5 cylinder TD is a rare bird.
Great to hear you put it in an Audi 4 wheel drive.
I was one of the folks that called you,.. just after you sold the car.