After a period of inactivity on the G16 project, I have now done a little more detailing work. This was to add a wire run (or is it an oil pipe run?) from the front of the tank to the bulge over the cylinders on each side plus the start of what will be the clack valves on each side. For the latter I have used a thickish brass wire with some fibre washers intended for valve gear applications. Next, I will add a little Milliput to the tops followed by another of those fibre washers. The photos show this work to date, with apologies for the blurriness of the first pic.

Those wire/pipe runs are deliberately kinked and wavy - photos of the real ones show this to be so.