https://www.chilternmodelsteam.co.uk/I too had not noticed the Chiltern Model Steam WEB site
so spent quite a few hours reviewing both the Drawings and text........ so without repeating any of the components Distributors detail, find the following
1. Excellent design, are these segmented piston assemblies? in certain cases with one piece Teflon piston seals?...says assemble, not cut or use a Teflon sizing tool?
2. The diameter of the crankshaft output shaft for each of the engines is not listed on any of the detailed dimensioned engine Drawings, however the accessory Flywheel Drawings do confirm the corresponding bores are all 6 mm diameter
3. The Distributors WEBsite displays a user friendly and extensive accessory adder for any chosen additions, and an easy to use world wide freight calculator is also included for potential customers to consider
4. The height of the crankshaft output shaft above the floor level is not shown
5. Each
engine kit provides a .pdf of an exploded engine assembly CAD view, together with a logical step by step engine assembly procedure document
6. The sealing of steam nipples to valve bodies appear in many cases to be via o-ring, however without any consideration to conventional soft sealing cavities
7. The manufacture of all components appears to be of CNC production, which by feature [usually] ensures correct production tolerances
Interestingly, the Distributor provides detailed images and descriptions of the typical model steam boilers we have become accustom to over the years, and offers a Test Certificate for each boiler, however indicates
“Due to the nature and operation of model steam boilers no warranty can be offered” [this is listed in the Distributors Terms & Conditions]
8. Having made these points, I would consider investing in a CMS engine
Derek