23rd January, 2026
Update on two Maunsell steam locomotives
Part of the pattern for the new left-hand cylinder for 928 'Stowe'
The Maunsell Society has produced an update regarding the overhauls of Q Class 0-6-0 No. 30541 and Schools Class 4-4-0 No.928 ‘Stowe’.
The boiler for 30541 is advancing well at Leaky Finders in Devon. At the time of writing, the remaining jobs required are riveting the steel backhead to the outer firebox, followed by staying, and the foundation ring rivets fitted along with the flue boiler tubes.
The holes for the washout plugs will also need to be re-tapped before the boiler is hydraulically tested, then, after the grate and smokebox have been refitted, the boiler will be returned to Sheffield Park.
Since the last update, Leaky Finders have carried out extensive work during the second half of 2025.
The majority of the copper stays have been annealed, set, and fitted into place around the sides of the firebox.
Most of the monel metal crown stays have also been fitted and caulked.
All of the boiler flue tubes have received and passed an NDT inspection and are ready for the ends to be brazed onto the tubes; these will be fitted at a later date.
Smaller jobs have included reaming the holes for the foundation ring, repairing and fitting the mudhole doors and fitting the boiler blowdown valve.
Work on the frames has unfortunately slowed over the last few months following the discovery of cracks in the horn blocks, which were sent for specialist repair.
They have since returned, although before fitting, they will require machining.
The new axle box crowns are currently being manufactured, and components for the brakes are being reassembled.
When the frame inserts are completed and the horn blocks added, the frames will be ready for reassembly.
Following optical alignment, bronze plates will need to be made to ensure correct alignment of the axle centres, and white metal liner faces cast and machined.
The slide bars will then be reattached and aligned before fitting the driving wheels together with axle boxes and springs, after which the inside motion can be assembled.
Work on the tender is still ongoing at Sheffield Park, East Sussex.
The exterior of the new tender tank is being painted; the inside was completed before Christmas.
The coal space will be painted in January.
Pipe work has also started to be reassembled on the tender frames.