In the same yard we had an old oyster boat with a 3 cylinder Wolverine diesel. Made 75 HP each cylinder was a foot in diameter. To start you light a piece of clothesline on fire and wedge it in a screw in plug. Screw all three in and bump it over with bumping pry bar. Then hit the air starter. It idled at like 10 rpm. It had a board you could rotate over the air inlet if it started to runaway. Running normally it was scary to stand next to.
