Magneto
The Offy used a Bendix Aircraft Engine Magneto to fire the spark plugs. The engine did not require a battery as the magneto generated its own power. Today I research these and collected lots of good images. My current thinking is to make the magneto a project all by itself. It deserves good treatment, it sits right in the front of the engine for all to see.
I also cleaned up the design of the oil pump and resolved some design issues resulting from component interference. This is shown below
I started a Bill of Material spreadsheet capturing all of the hardware size and lengths for the engine. This will be a living document as I refine things moving forward.