*#*^&@#$ Fuel pressure regualtor replacement

[89911]

I think I have found my most frustrating task to date. Has anyone replace a fuel pressure regulator. It took my a few minutes to find it let alone replace it. Any hints aside from pulling the engine would be appreciated. It's not that I can't see with the help of a mirror what needs to be done, it's that no wrenchs that I can think of will fit down there. The Bentley manual makes no mention of the difficulty. Maybe they assume the engine is already out.