Ok bit more info please.Has anybody had any trouble with steaming the Astor Alishan Shay locomotive?
I have purchased a second one and it will not hold steam, it leaks straight through to the chimney.
Hm ok sounds like there may be a leak in the superheater tube if there is one. To check if one is fitted where does the pipe from the regulator go? If through the boiler then out somewhere (likely by the smokebox) to the cylinders the leak could be somewhere in the fire tube.There is no steam leak with reg closed.
Steam gets upto pressure with reg closed but but leaks to chimney when it is opened.