{"product_id":"stuart-compound-launch-engine-stock-code-2322","title":"Stuart compound launch engine","description":"\u003cp\u003eA compound launch engine with Stephenson's reversing gear, from a builder who  has made many of the Stuart engines, along with the technically interesting  Atkinson steam wagon in 3 inch scale and a rather nice 2 inch scale Fowler A7.    \u003c\/p\u003e\u003cp\u003eAlthough it is nicely made, the engine has been built with rather tight  tolerances - in particular the LP piston could use a thou or two more clearance  in the bore. It is not nasty and notchy (which is what you tend to get with a  badly made engine), just tighter than required for a new engine. The piston  could be removed and relieved a little, although my first option would be to run  it in gently on air for a few hours.    \u003c\/p\u003e\u003cp\u003eHeight 7 inches\u003cbr\u003e    \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ccenter\u003e\u003c\/center\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54019629121877,"sku":"2322","price":495.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/2322-1.webp?v=1779905637","url":"https:\/\/stationroadsteam.com\/products\/stuart-compound-launch-engine-stock-code-2322","provider":"Station Road Steam","version":"1.0","type":"link"}