An unexpected steam locomotive

It must be the tweed jacket. And Garden Rail Editor badge. It fools people into thinking I know something about steam trains. This is probably how I found myself presented with a mystery 0-6-0 O gauge locomotive. Its owner believed it had been built in the Midlands, but otherwise knew nothing. He'd bought it for £60 a year ago, replaced the safety valve, and then was stuck. It took a look and realised it was meths fired. Fortunately, the owner had brought along spirit and water. He'd build a nifty stand, so we decided to fire it up. It's a long while since I lit a meths-fired loco up, and that would have been a Mamod. Since I didn't really know what I was doing, I pretended I did, and had a go. After all, how hard can it be? The burner unclipped easily enough, so I filled this up. Then unscrewed the safety valve and topped the boiler up with water. I lit the wicks, and clipped the burner back in place. And waited. With slip eccentric valve gear, the wheels aren't going to spin on…