Hi BJ
Sinc! Just getting exhaust temps and fuel voltage simular with in reason after some long discussion with my cousin who was a flight engineer (40,000 hours on 727 and 747 for S/African) he suggested to keep those two areas in a reasonable tolerance. I think its me being a little anal as well.
I also had to run one pump to bed it in a little further. Like you I ran it in the loop to the tank.
The original fadec's I tuned them up by giving them a solid thump [:@] with a 2KG ballpain hammer I purchased two xicoy's much better[8D]
One interesting thing I found was that by placing and ajustable valve in the gas line and a bit of fiddling I was able to get consistant starts first spin (like the 200xl)
Sorry to hear one pump gave you trouble. You are correct on the tolerance between the rear plate and the cog if I could find out the correct clearance I could fix a few of my own stuffed pumps.
Good luck with the start up on the weekend
Flying the A10 the way the temp is over here probley wont get to test fly her till after Easter[&o]