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MSS and Mamod Modifications and Accessories
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Boiler fittings | ||
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Steam regulator
Designed for use with the standard Mamod boiler, this regulator fits in the cab onto the existing bush where the whistle normally sits. It is used for fine control and the original reverse valve is retained for changing direction. Fitting requires partially dismantling the loco and a small modification to the cab. |
£23 | |
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Adjustable safety valve x 26TPI BSF.
This high quality safety valve, with its more positive action, gives a measurable increase in power. 26BSF or 32 and 40ME TPI. |
£8 |
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Water top-up valve x 26TPI BSF.
This valve replaces the whistle and can be used to fill the boiler with water whilst it is in steam. 26BSF or 32 and 40ME TPI. |
£6 |
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Copper boiler- PPS design
A complete replacement boiler manufactured from 18swg copper, suitable for pressure up to 50 psi. With water sight-glass and two extra take-offs for whistle and pressure gaug, for example. This boiler is a direct replacement for the original, but to fit it, you will need to partially dismantle the locomotive and make a small modification to the cab. Length: 132mm; Diameter: 38mm. |
£100 |
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Water top up bottle - larger size.
Designed to be used with the top-up valve shown above, it is a useful way method of filling the boiler of a hot engine in steam. |
£5.50 |
Cylinders and fittings | ||
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‘O’ ringed piston and cylinder set (state gauge) - PPS design
A complete cylinder assembly including ‘O’ ring, gland nuts, improved back plate gaskets and modified springs. Available for locos running on 32 or 45mm gauge. |
£36 |
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Forward and reverse valve assembly- PPS design
A direct replacement that has been machined to reduce steam leakage to a minimum and improve the engine's efficiency. |
£20 |
Chassis fittings | ||
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Steel wheel set (state gauge)
Four wheels and axles, directly replace existing loco wheels. Fitted with modified bearings that are retained by nuts on to the frames. Available for 32 or 45mm gauge. |
£25 |
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Spoked steel wheel set (state gauge) - PPS design
Four wheels and axles, directly replace existing loco wheels. Available for 32 or 45mm gauge. |
£37.50 |
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Steel buffer set (pair) - PPS design | £6.50 |
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Buffer beams and centre buffers (2 of each per set)
This set converts the engine to standard height center buffers so that the loco can be used with a wide range of 16mm rolling stock. |
£13 |
Decorative fittings | ||
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Brass hand rail kit
This replaces the existing cast handrails and consists of eight turned brass handrail knobs and four brass handrails. |
£8 |
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Imitation side tank water-filler tops (2 per set)
These smart turned brass filler tops fit on to the top of the side tanks. |
£5 |
Gas burner fittings | ||
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Rectangular gas burner | £25 |
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Round gas burner
Diameter: 53mm, Height: 25mm. |
£35 |
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Upright gas tank
Diameter: 28mm, Height: 92mm to the top of the valve. x 40TPI take off for union nut pipe. |
£25 |
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Rectangular gas tank
Length: 63mm, Width: 25mm, Height: 25mm (60mm to the top of the valve). x 40TPI take off for union nut pipe. |
£28 |
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Gas control valve
x 40TPI to gas tank. |
£12 |
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Gas tank inlet valve | £6 |
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Gas jet No 3 or 5 for burner | £4 |
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Gas pipe and jet | £8 |
| Complete gas burner sets
Above items are available as a complete sets with gas tank, gas pipe, jet, and burner. |
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With rectangular gas tank and rectangular burner. |
£55 |
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With rectangular gas tank and round ceramic burner. |
£65 |
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With round upright gas tank and burner. |
£50 |
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The performance of the Mamod and MSS locomotives has always been limited by the need to comply with the legislation covering childrens' toys. In particular, the ability to raise steam is reduced by the need to use solid fuel tablets and a safety valve operating at less than 14.7psi. This range of modifications and accessories will enable you to significantly improve the performance (and looks!) of these engines. All items are suitable for both MSS and Mamod models. See also the details of the spare parts which you can obtain for these locos.
