I just picked up this little stationary engine, It's a Villiers Marvil from 1933. I did a little research and found an interesting point, this little engine gets it's name from the first three letters of each of it's founders MAR-ston and VIL-liers hence MARVIL, also I noticed that the villiers coolie hat mag internals including the coil are similar if not the same as my Marston and this one has a spark
The air cooled block/barrel also looks like it would fit a Seagull, air cooled Seagull anyone!!!
I've heard about the Marvil, first time I've seen one. Excellent! Wonder if it is a 102cc? As you say it could have a lot of common bits inside. the villiers factory was close to sunbeamland in Wolverhampton.
The base studs on the bottom of the barrel are the correct distance to fit a Seagull and the exhaust is in the right place, I might strip it down to have a look but all this is blasphemous
I can see me being barred from any Seagull event especially if I turn up with an air cooled Marston!!
Cool engine, now you just need a washing machine to power with it. I have a bunch of the Canadian Iron Horse kick start washing machine engines that were made by Johnson of OB Fame. Our discerning house wives however required 4 strokes.