What you say makes perfect sense as the bomb doors were indeed open when the donor aircraft was scrapped. When i restored (removed, cleaned and rebolted the unit back to the centre pedestal) I don't recall being able to push the brass coloured cone into the limiter unit, however I wasnt specifically checking that at that time.
I had in the past firmly pushed the bomb door lever back but there was certainly non movement from the white marker. I will try this again although I am guessing that the cone extender will be very stiff/hard to push in. I wonder what will happen if I attach 28v to the actuator ?
I will try over the next few days and let you know the results.
Many thanks
Martin