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Jun/Jul 2008Subscribe NowEngine videos online! Check out the GEM video index on YouTube, the quickest way to find gas engine videos on the Internet. We’ve done the searching, all you have to do is the watching! Click below for GEM engine video index. |
Hercules Engine NewsIncluding Economy, Arco, Jaeger & ThermoilBy Glenn Karch,20601 Old State Road, Haubstadt, Indiana 47639 The largest size gas engine first built by Hercules was the 10 HP model D in 1914. It had a 7 inch bore and 12 inch stroke and was governed at 300 RPM. The shipping weight was 2525 pounds. Ignition was by igniter and Elkhart magneto. Later in 1914 the same design engine with the same specifications was related to 12 HP and called the model E. Also later in 1914, two mechanical experts from the University of Illinois came to the Hercules plant at Evansville, Indiana. They conducted prony brake horse power tests on all size engines being produced. In their tests, the 12 HP size engine actually produced 14-38 HP. This was 120% of rated HP. Ignition on all but the very early E models was by Webster magneto. There were several vers... 802 of 1785 characters shown.
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