Phil.
Do you have a hand vacuum pump (not that sort
) with gauge? Essential for this kind of work IMO.
I bought this one from amazon
http://www.amazon.co.uk/Gunson-77003...1526711&sr=8-2
Its got a pretty good 270deg gauge which is atmosphere to -1bar / 30inHg
If you can vac up the actuator and close the wastegate using the existing hose unplugged at the solenoid end, and it holds the vac, then the hose is ok and it saves you messing around.
I've used this pump to set my forge divertors (open at -300mbar to BMW idle spec) and check for leaks on the other systems.