A well built locomotive, it was completed in 2024 and first ran at that time. It came to us recently in part exchange for a 5 inch Class 66, the previous owner having found the Wren too large and heavy to handle.
It has been serviced in the workshop and various minor teething problems - expected with any new locomotive - resolved. The original safety valves accumulated and had been set to open early in an attempt to "cure" the fault. That never works - if a valve accumulates it's either undersized for the boiler or got the wrong or tired spring in it, which no amount of fiddling with the adjuster will fix!
The safety valves - needless to say - have been replaced, the regulator gland has been repacked (you previously needed asbestos fingers to drive the thing).
The commercially built CE-marked boiler has had hydraulic and steam tests with new certification issued.
Those jobs done, it now steams freely and runs beautifully - as close to a brand new narrow gauge engine as you're going to get without ordering one of ours!
We like this one - it's a nicely made engine in first class condition. Well painted in prototypical livery - with hand lined and signwritten tank - it has captured the look of the full-size engine.
Offered with 12 months warranty, set of firing irons and a starter kit of coal and oil - we would be more than happy to give half a day's instruction on the steaming, running and disposal of the engine to a new owner if required.
| gauge | 7 1/4 inch |
| length/inches | 44 |
| width/inches | 16 |
| height/inches | 28 |
| weight/kg | 29 |
| wheel material | cast iron |
| axlebox type | plain bearing |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | Hackworth |
| reverser type | pole |
| lubricator type | mechanical |
| injector(s) | 1 |
| boiler number | GB850 |
| year built | 2019 |
| boiler maker | GB Boiler Services |
| CE mark | yes |
| working pressure/psi | 85 |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | silver soldered |
| hydraulic test valid to | 2/19/2029 |
| fusible plug | no |
| safety valve(s) | 2 |
| safety valve type | spring |
| mechanical pump | 1 |
| whistle | yes |