{"product_id":"4-inch-scale-part-built-dodman-traction-engine-stock-code-4280","title":"4 inch scale part-built Dodman traction engine","description":"\u003cp\u003eOne of the rarer engnes that we see, this is a 4 inch scale Dodman single  crank compound, built to the Peter Filby design using the drawings and castings  supplied by Bob Whitehead. Work to date is to a good standard by an experienced  engineer who had already built several other large scale traction engines and  locomotives.    \u003c\/p\u003e\u003cp\u003eWork to date comprises a welded steel boiler with expanded tubes by AJB  Engineering, CE-marked and complete with all documentation with hydraulic test  at 340psi for 170psi working pressure. Wheels have been built to a good  standard, the crankshaft is fitted complete with connecting rod and eccentric  sheaves for valve and pump rods - there is a machined strap for the pump.    \u003c\/p\u003e\u003cp\u003eTransmission is substantially complete, all shafts fitted complete with  professionally-cut gears. Smokebox and perch bracket are largely complete, there  is a smokebox door to fit.    \u003c\/p\u003e\u003cp\u003eThe compound block is machined and fitted to the boiler, complete with slide  valve, piston and rod, guide bars with crosshead and end cover. The safety valve  base is machined and fitted, there is a machined valve chest cover and front  cylinder cover.    \u003c\/p\u003e\u003cp\u003eValve gear is largely complete with valve rod, expansion link, lifting links,  weighshaft, valve rods and eccentrics. The engine turns over and would require  little further work to run on air.    \u003c\/p\u003e\u003cp\u003eComplete with a set of drawings.    \u003c\/p\u003e\u003cp\u003eComplete engine:\u003cbr\u003e  Length 72 inches\u003cbr\u003e  Height 52 inches    \u003c\/p\u003e\u003cp\u003eBore\/stoke 2 + 3 1\/2 x 4    \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ccenter\u003e\u003c\/center\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54019932193109,"sku":"4280","price":6950.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/4280-1.webp?v=1779908569","url":"https:\/\/stationroadsteam.com\/products\/4-inch-scale-part-built-dodman-traction-engine-stock-code-4280","provider":"Station Road Steam","version":"1.0","type":"link"}