A sight we might soon see, but with an engine attached! Work continues on the smokebox door, replacing the hinge strap bolts with counter-sunk rivets.
The riveter in action...
...to produce these almost flush heads. Some grinding down is needed to obtain the final finish. The chalked 13268 will be replaced by this newly cast number plate, waiting to be drilled and painted.
The new smokebox number plate in undercoat.
Looking from the rear along the length of the smokebox to show the rear of the door, with the dart engaged in the horizontal cross bar holding the door shut.
The door’s inner liner, with the lower deflector plate bolted on and covers fitted to holes allowing access to nuts on the inside face of the door.
And talking of paint, the SMF team has been busy at the footplate end...
...and behind the left hand cylinder.
The right hand expansion link has been removed for work to ease its movement in its bushes.
Both pistons, complete with piston rings, are again in their cylinders.
And the piston rod tails loosely fitted into the crossheads...
...where they were loosely held by these bolts.
Attention has now turned to the valve rings, and the first job was to saw a cut in them. They are turned from cast iron tube so are continuous as received. There are four rings per valve head, and these are the cut eight for the right side.
A cut ring inside the valve chest in front of the valve head to check clearances. The inside of the ring must now be hammered. This causes the ring to straighten out slightly and so exert a force on the valve chest wall to make it steam tight.
A close up of the ring, with the cut, top.
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