The 1960 Central States Thresher man's Reunion

Elyria gas engine
Elyria gas engine, called Little Big Engine. The U. S. Automatic Co., Amherst, Ohio had 4 of these engines, size 75 hp, speed 275, bore 10 in. stroke 15 in. Water cooled pistons and rod and exhaust valve. The rod had metallic packing in. We had no muffler