Before installing the assembly, a ring of ceramic rope padding was put in place where the edge of the top plate would be seated. This is to provide a seal so that when the engines 'chuff' and create a vacuum over the fire, air is drawn up through the fire instead of through the gaps at the top of the boiler.
(There is more to be figured out here due to the large gaps around the superheater piping where it passes into and out of the top plate).
|White ceramic 'Rope' placed around the edge|
|'Derek' taking the strain with assistance from Glyn (Photo R Williams)|
(Who's the onlooker in the rather fetching orange hat?)
|Down a bit (Photo R Williams)|
(Who's doing the in-cab lifting?)
|A Meerkat cab-roof hand signal! (Photo R Williams)|
|Finally at home in the boiler top|
Many thanks to all who helped in the process (Trevor, Phil, Glyn, Jeff and others who I may not have spotted).