Jun/Jul 2008

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Hercules Engine News

Half-Breed Project Update

By Glenn Karch

The progress on the 7 HP Hercules screen-cooled engine replica continues, but somewhat slowly. The story today is mostly in pictures, and the first picture shows the newly cast cylinder cover and lid in place on the cylinder (see Photo #1). The coolant pipe is in place, as is the oiler pipe and the oiler. Since the oiler pipe passes through the water jacket, it requires a water-tight joint. The originals had packing around the pipe, but in this case I'm hoping a little silicone on the bottom side will do the trick. The igniter, igniter trip and right-angle priming cup are in place. Mow, where does the I.D. tag belong? Very early E Model engines of this type had the tag on the base, but in this case a spot on the front top of the cylinder cover has been chosen as appropriate.

Photo #2 shows an aluminum pulley that will drive...

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