[1] Airflow for cooling the cylinders was generated with a fan driven from the rear end of the crankshaft.

A single camshaft was situated between the two rows of cylinders and operates the inlet and exhaust valves of both cylinder rows, with each valve operated by a separate cam on the camshaft.

A pressurized oil lubrication system was fed by a gear pump located on the lowest point of the crankcase.

The oil pump was driven over a vertical shaft from the camshaft via helical gears.

The drive shafts of the magnetos were joined together and driven from the camshaft via helical gears.