Mystery Motor
August 2, 2010by Jack Roberts
I was attracted to this ad for little-known Waukesha-Hesselman engines primarily because of the overloaded truck featured in the ad’s photograph. But when I sat down to research the company for this blog entry, I came away with surprisingly little information. (I did find someone on Ebay selling this exact same ad. But the winning bid was only $5.99 – clearly not worth ripping pages out of the CCJ archives we keep here at the office.) As it turns out, I was really researching two companies and one engine.
Waukesha Engines were providing gasoline engines for a variety of applications, including heavy-duty trucking by the 1930s. The company is still doing business today as Waukesha-Dresser, specializing in large, stationary diesel engines.
I had more luck when I researched the Hesselman engine. Oddly enough, a Hesselman was a spark-ignited diesel introduced in Sweden in 1925 by engineer Jonas Hesselman. Basically, the engine was spark-ignition engine, converted to run on heavier fuels such as oil, kerosene or diesel. Fuel was injected into the combustion chamber using an injection pump. Because of the engine’s low ...





























