The Excelsior Project, 13: Rockers

The shape is starting to develop. These are for the left side of the engine; the "ears" bolt to the lower top tube of the frame to help the engine act as a "stressed member".

The shorter ones attach to the bevel drive, on the right side of the engine.

With a bit of bondo, the shapes resemble castings, which is what they would have used in 1919.

Figuring out the rockers. That's the little pile of metal above the calculator, to the left. The rollers are 3/4" ball bearings, and the rocker ratio is 1.57:1. Everything is taking longer than planned, and I can feel my stress level rising.

More mild steel with a bit of Tig-welding.


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