GTSIO fuel flow....
Greybeard, arcs'n'sparcs and gaunty,
Many thanks for your inputs as well. Everything with this low-time engine pointed to a pump problem.
After speaking to a very knowledgable and experienced chap who used to work for a now defunct, highly respected engine shop in Yorkshire (thanks Gerry A*****e) and spending two days fetteling, we now have agreeable results. At last, both port and stbd engines are balanced with all their indications. And the aircraft flies spot on with equal fuel burn. And we haven't had to change the pump.
This was one of those occasions when, after doing the adjustments and following the SB as I had done on many previous occasions, the expected results never materialised, leading to serious self-doubt.
All's well that ends well. Thank you all for your valued inputs. Much appreciated.
camlobe