I'm not of any help to you yet, but I want to thank you for posting your experience and following through. I am doing the exact same work right now. I got a 4D56 head, having turbo, pump, and injectors rebuilt. I will definitely be posting here when I get things back together, either to declare success or to try to solve a problem. Anyway, keep trying and let us know how it goes. If I run into anything which may help you, I'll post it.