{"product_id":"3-inch-scale-fowler-bb1-ploughing-engine-stock-code-10307","title":"3 inch scale Fowler BB1 ploughing engine","description":"A 3 inch scale Fowler BB1 ploughing engine, an older engine which has come to us as part of a large collection of traction engines, from 1 inch to 4 inch scale - none apparently steamed in many years.\u003cp\u003e\u003c\/p\u003e\u003cp\u003e    Given the size of the prototypes, most models of ploughing engines we see are built to 2 inch scale, built to the designs by John Haining and Colin Tyler published in \"Model Engineer\" magazine back in the 1960s and 70s. Even then, the larger types - including the BB1 and Z7 - are a heavy two man lift.\u003c\/p\u003e\u003cp\u003e    In 3 inch scale, the engine really becomes quite an imposing size. At nearly six feet long and around a third of a ton, there was no chance of lifting it - the engine took three of us just to push it up the ramps onto the trailer!\u003c\/p\u003e\u003cp\u003e    Unsteamed from new, the engine is largely complete bar a missing pressure gauge - the coiling gear, not shown in the photographs, is included. The boiler is welded steel with expanded tubes, most of which leak at the front tube plate.\u003c\/p\u003e\u003cp\u003e    Jobs requiring attention include:\u003c\/p\u003e\u003cul\u003e\n\u003cp\u003e    \u003c\/p\u003e\n\u003cli\u003eService leaking clack valves\u003c\/li\u003e  \u003cli\u003eReplace missing pressure gauge\u003c\/li\u003e  \u003cli\u003eSet valves and\/or eccentrics\u003c\/li\u003e  \u003cli\u003eRetube boiler - existing copper tubes are of light gauge and leak at the front tubeplate\u003c\/li\u003e  \u003cli\u003eReplace pump delivery pipe\u003c\/li\u003e  \u003cli\u003eRight hand motion bracket loose\u003c\/li\u003e  \u003cli\u003eAdjust weighshaft\/reach rod\/lifting link mechanism to give reliable expansion link movement\u003c\/li\u003e  \u003cli\u003eService water gauge which leaks at unions and blowdown\u003c\/li\u003e  \u003cli\u003eFit new gasket to blower valve\u003c\/li\u003e  \u003cli\u003eConnecting rods fouling motion bracket\u003c\/li\u003e  \u003c\/ul\u003e\u003cp\u003e    Not a five minute job, but a worthwhile project - rare in this scale we've only ever had one other 3 inch BB1which sold back in 2014 - \u003ca href=\"\/products\/3-inch-scale-fowler-bb1-ploughing-engine-stock-code-6409\/\" target=\"_blank\"\u003ethere are some picture of that one in the archive here.\u003c\/a\u003e\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54019078914389,"sku":"10307","price":12250.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/10307-1.webp?v=1779901640","url":"https:\/\/stationroadsteam.com\/products\/3-inch-scale-fowler-bb1-ploughing-engine-stock-code-10307","provider":"Station Road Steam","version":"1.0","type":"link"}