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4-6-0 Royal Scot
gauge:   1
railway:  LMS
butane fired

0-6-2 GER 1003
3.5" gauge
railway: GER
Coal fired

0-4-0 Dacre
gauge:   0/1
railway:  Wales NG
butane fired

 

0-4-2 GWR 14xx class
5" gauge
railway:  GWR
Coal fired

Wagons  (Update)
 

0-6-0 T3
7.25" gauge:  
railway:  Germany KWStE
Coal  fired

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This is Part 4 of the Didcot: The piping and boiler details.

Part 1     Part 2     Part 3     Part 4    Extra part 4a

The making of a Great Western Railway 14xx class 0-4-2 tank engine.

The final work is now in full swing  and I hope I'll be able to make the first test steaming within a few weeks from now.

I started with the pipework necessary for the feed water supply, which is made of  copper pipes of 3, 4 and 5 mm outside diameter. This was bend by hand over a small former, which is nothing more than a piece of brass rod with some groves in it.

I find it always a bit of a puzzle, how to fit these pipes, especially on a tank engine, where space is limited.


The complete cold feed water layout, from crosshead pump and handpump to boiler topfeed  took some time to figure out, the fabrication was much quicker.

I now have a system that fits nicely behind the left side tank, and it can be removed as one set  with releasing only a few unions.

Two GWR style dummy whistles are also made, complete with the shield, that on the real locomotive was later on in its life extended above the cab, so the steam from the whistle would not obstruct the drivers view forward, while using the whistle. On the GWR locomotives you'll always find  two whistles.

The injector has also been set-up, below the cab floor. 

A big brass block was made, that screws up to the bottom of the rear bunker. This block, complete with stainless steel water filter, takes up the water outlet for  the crosshead pump and injector water valve.

A small electric blower has been made, for which I managed to use  the outer part of a brass fitting of some kind of electric connector. This saved some work, and a lot of material and time.

The super heater element has been permanent installed, complete with O-rings, Teflon washer, and silicon sealing. The copper connection pipe between the bronze boiler outlet point and the stainless steel super heater is protected against corrosion with graphited yarn wounded around the pipe and this is in its turn is surrounded with thin copper wire. I hope this will give some kind of protection against the sulphuric surroundings in the smokebox.

I found with my ‘Mona’ that these copper pipes in the smokebox are eaten away over the years.

Boiler lagging is made of woven glass and this can be cut with  scissors with ease.

The back plate of the water gauge has been painted, the check valves are made and installed.

With loctite 542 between the flanges the water gauge was fitted on the boiler.

The number plate 1414 was cut out from 1mm thick brass plate. The individual numbers were soldered on a 2.5mm back plate. A set of needle files and patience is all that is needed to make these plates.

On 16th April 2005 I did the first steam test in the garden.

Water, coal fire, oil and steam!! Everything seems to work!

Full steam.

Blowdown of the boiler after her first test

Visit to the boiler inspector, first test drive and visit to Den Haag Zuiderpark and Leek Nienoord 2005 :  klick here for this extra Part.

There are two ways of doing things:
The wrong way or the Great Western Way

Part 1     Part 2     Part 3     Part 4

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Didcot taking shape

1414 in the workshop, almost ready for first steam test