The pipework in the cab.

The large red handle is the top of the steam regulator - the main control for steam to the pistons. The brass circular assembly on the right is the vacuum brake. The slots allow air in to break the vacuum and activate braking along the whole length of the train.

Contrast this view with earlier shots of the bare cab.

View through the right hand cab spectacle plate.

Note the quality of the pipework on the left of the picture by the boiler.

Working on the left hand 'Elephant's Ear' viwed from the cab.

The steam fountain.

From here high pressure steam will be delivered to the live steam and exhaust injectors under the cab (delivery will be actuated by two spindles in the centre of the fountain). The upper lever in the picture is the carriage warming cock, and the tap beneath it regulates the flow of steam to the carriages.

The driver's controls.

The red rotating handle is the reverser, for setting the engine in forward or back gear, and setting valve 'cut off'. At low speeds cut off can be as high as 75%, but at high speeds less steam is needed so the setting may be around 20%.

The handle on the left is end of the regulator.

View along the top of the engine.

6023 is being built to the GWR loading gauge of 13'5". However, for use on National Rail, it will need to have a second shorter set of chimney, bonnet and cab to meet the 13'1" gauge required. The white line in this shot is at 13'1"; note the chimey height.

Thirteen Feet & One inch

Two wooden gantries like this, with a laser level, were used to calculate the necessary height reduction needed for main line use.

Peter, John and Derek at the work bench.

Note the red wooden wheel pattern on the wall. This was made in order for the destroyed rear wheels to be cast anew.

Inside right valve spindle.

This view is taken from the cut out in the frames just above the front bogie. This aperture gives access to the inner valves for lubrication and maintenance, and allows the derived valve movement to the outside valves via a rocker arm..

Inside the boiler.

The original smoke tubes that carried the heat from the tube plate in the distance, through the water, and out of the tube plate through which this shot was taken, have been scrapped. One of the final jobs on the project will be to replace them, until then this unusual view is possible.

Longitudinal stays.

These stays prevent the huge pressure of the boiler forcing the tube plates outwards.

The front tube plate, seen from inside the smoke box.

The studs in the top of the picture will carry the superheater elements down the smoke tubes.

Unusual view of cutting going on in the firebox.

The valve setting guide again, this time on the right outside valve.

Martin turns the wheels.

As the engine mecahnism has slackened, only one person is needed to spin the wheels on this side of the engine, with two on the left side, assistance being provided by an air-powered motor.

Taking measurements from the valve setting guide.

Two people are needed on the left side of the engine, along with someone to shout 'pull!' so that effort is coordinated with the right hand puller.

View of the right hand rocker arm.

Despite having 4 cylinders, 6023 has only two sets of valve gear, concealed between the frames. These drive the inner valves, and an exactly opposite movement is supplied to the outer valves by means of rocker arms.

Long right hand view.

Gauges and pipes in the cab.

From the left:; boiler pressure gauge, regulator counterbalance weight (red), fountain (top), vacuum brake (bottom of picture) and vacuum brake gauge (main dial in picture).

Firebox doors.