Those who read my first post here will know that at the time I was still shopping for a first engine... not any more. Yesterday my workshop gained one lump extra in the form of a Petter A series. No definite facts about it other than it came from a cement mixer. The manufacturer's plate suggests 750rpm and what looks like 1.5hp -- but it's pretty dirty (ie VERY dirty!). Complete with starting handle, it turns over easily once the decompression lever is engaged.
If I'm honest it's not the kind of engine that particularly interests me in that I like more in the way of flywheels, chimney-like exhausts and workings 'on the outside', but it will probably make for a good first 'tinkerer'.
But that's not all: I'm collecting a Lister D on sunday. A c.1940 vintage in what looks like reasonable condition with (I think but I'm willing to be wrong!) the original trolley (at least, the wheels).
At last: no longer an onlooker!