I have to say again, what am an amazingly civilized and helpful forum this is!
Such a post on most other speciality vehicle forums would have quickly turned in to some sort of shouting match.
Just to be clear about two things.
I never expected Morgan to make a perfect car.... but I did expect them to respond better to the problems that occurred.
And.... my three wheeler is already gone and I've moved on to other vehicles.
I don't own a 3W, but it seems they certainly have issues. I would not have been happy in your shoes either - very disappointing. Whether it's the engine (or anything else) it's down to Morgan to sort out, or at least it should be.