Handrails and radiator
engine casing kitbuild handrails radiator
Starting with the engine top cover which was made by first laminating together a half-etched top and  and  followed by a bottom spacer  that is slightly smaller all round. Before assembly, these parts were all rolled on the mat to impart on them a gentle curve. This assembly was then soldered to the top of the engine casing. There is no reference mark for its position but the drawing with the kit and photographs of the preserved loco indicate that it is set slightly rearward on the engine compartment.
The handrails on the front, either side of the radiator casing were added from 0.4mm wire in the same way as for the cab handrails. Remembering to keep the half-etched recess for the front free of solder.
The main handrails are 0.5mm wire and are stood off from the engine casing by supplied brass pillars. These pillars are drilled through, but need to be opened out with a small five sided broach to enable the 0.5mm wire to pass through. The holes on the casing side also need enlarging to take these pillars. Sadly the quality control of these pillars was found to be poor, as 3 out of the 10 supplied had holes broken through. I could see no way of correcting these other than filing a vee in place of the hole and hoping they do not distort the wire too much.
There are 2 handrails either side with a break between the engine casing and the fuel tank. I added these as complete units rather than trying to thread through the pillars after they are mounted. This keeps the pillars orientated correctly while soldering in place, again best done from inside the casing. Of course those 3 duff ones didn't help.
The rivets on the casing front were punched out. Then the radiator , its surround  and slats  were removed from the fret. The holes in the radiator slats need a slight tease with a broach to allow a 0.4mm wire to pass easily through especially if the aim is to have the slats slanted. They were moveable on the prototype.
The radiator was assembled by first soldering the surround to the face of the radiator. The slats were then added one at a time tack soldering them into their etched grooves on the radiator while keeping them threaded on the 0.4mm wire. When this had been done, applying a liberal amount of flux and reheating the panel was sufficient to solder the assembly solid. Be very careful if heating from the back of the radiator as the surround in particular can shift, does it show?
Of course it was not helped when soldering the completed radiator into the hole in the casing front I had one of those rather senile moments and soldered it in with the slats horizontal! A stupid mistake that meant having to apply far too much heat to get it to drop out again, followed by a thorough clean and re-assembly.
The final step was to fit the casing front into the half-etched recess in the engine casing.
The camera has just pointed out that slipped slat and so I will have to add that to my list of tidy-ups.
Once again I have left lamp brackets and the like until later when there is less likelihood of catching them on everything. But otherwise that completes the superstructure.