Live Steam 
Single Cylinder "Marine" Model Steam Engine 
Fully Machined Kit in Brass, Bronze & Steel 


The single cylinder "marine" engine is a simple design, yet retains the basic mechanics of engines which powered boats, farm equipment, and workshops in the nineteenth century.


NOTE: The pictures are of the assembled, painted and polished model. This listing is for the kit of parts, see picture, not painted or polished. The optional second flywheel includes a slightly longer crankshaft.


The marine engine layout has a double acting cylinder, eccentric driven slide valve and the brass flywheel offers smooth running and is capable of powering a range of accessories, in a variety of roles. The engine also includes double split bronze pedestal bearings for the crank shaft, tube slider and a substantial cast base.


The kit consists of precision produced parts each carefully made and checked to ensure ease of assembly and reliability in service.


The cylinder assembly and piston are manufactured from brass and the piston shaft, connecting rod, column screws and valve from stainless steel so are not susceptible to corrosion. The piston shaft passes through an adjustable gland and the steam inlet can be on the front or back of the chest.


To accommodate more confined spaces, e.g. in a boat, see the 15mm short version of this engine.


Detail Specification:
- Type: Tube Slider
- Bore: 14mm
- Stroke: 18mm
- Flywheel Diameter: 70mm
- Valve type: Piston
- Height: 160mm
- Length: 80mm
- Width: 75 mm
- Weight: 1.1Kg
- Connections: 1/4" x 40 tpi ME


The kit consists of a set of fully machined parts that can easily be assembled using simple tools such as a screw driver, allen keys, pliers and metal file. The parts are mainly unfinished metal and will also require painting, polishing, filing, etc. to achieve the appearance shown in the pictures.


NOTE: The kit is supplied with socket or hex head set screws, although some screws for ease of installation, have to be socket head screws. Some screws as provided may need to the cut or filed to length to complete the model, contact us if this will cause a problem.


When assembled the engine is fully working and can be run using steam or simply using compressed air e.g. from hand or foot pumps.


To power the engine with live steam, connect it to one of our Model Steam Boilers.


NOTE: The model steam engines and boilers are NOT children’s toys and should not be assembled or operated by children unless under close supervision of an adult.

Vertical Marine Single Cylinder Engine Kit

  • Product Code: VSA2
  • Availability: 5
  • £165.00


Available Options


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Tags: Live Steam, Model Steam Engine, Fully Machined Kit, Marine Engine