{"product_id":"leak-compound-launch-engine-stock-code-2459","title":"Leak compound launch engine","description":"\u003cp\u003eCompound launch engine to Arthur Leak's design, published in \"Model  Engineer\" with the castings and drawings available from Camden Miniature  Steam Services. Designed for use in a 25-35 foot hull, the engine is rated at  11.2ihp at 450rpm on 120psi.    \u003c\/p\u003e\u003cp\u003eTwin cylinder, high pressure with piston valve, low pressure with slide  valve, actuated by Stephenson's reversing gear. Main bearings fed by drip  oilers, cylinders by mechanical lubricator. Three-bearing steel balanced crank.    \u003c\/p\u003e\u003cp\u003eThe engine was built for use in a narrow boat - it has done very little work,  spending a short working life coupled to the \u003ca href=\"..\/2491\/index.htm\"\u003e Sentinel boiler\u003c\/a\u003e I currently have in  stock, after which the entire plant was removed when the hull was sold to make  way for a new project. Provisionally earmarked for a road vehicle project, along  with the boiler, the owner has decided to move into steamrolling instead  (sensible chap). The engine is well-made with no discernible wear. The cylinder  cladding sheet paintwork is tatty and the drain cock plumbing, a later addition,  has a certain agricultural charm...    \u003c\/p\u003e\u003cp\u003eBore\/stroke 3 + 5 x 3\u003cbr\u003e  Height 22 inches\u003cbr\u003e  Length 20 inches\u003cbr\u003e  Flywheel 8 inch diameter\u003cbr\u003e  Weight approx 150 pounds    \u003c\/p\u003e\u003cp align=\"center\"\u003e\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54009563119957,"sku":"2459","price":2250.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/2459-1.webp?v=1779898237","url":"https:\/\/stationroadsteam.com\/products\/leak-compound-launch-engine-stock-code-2459","provider":"Station Road Steam","version":"1.0","type":"link"}