Actually a bit of compressed air aimed at the front hole blew it straight out.
Screwed in the donor needle and it started almost instantly, much easier then previously. Then I started tinkering with the needles and it died again, and now it starts difficult, if at all.
all in all I think I (or rather you) have found the culprit. I will try again this evening (really have some work to do now) and let you know how it worked out.
