the rod that sticks out the end is there to support the weight of the piston. both pistons float inside their bores and are supported by the external bearings under the rods that stick out.this is to reduce any wear on the cylinder bores and pistons due to gravity. it would be very difficult to rebore this or even change out pistons.
Тут минимум каленых деталей так как твердосплавы ещё не были изобретены, но бы уже самокал вк8 . Тут даже нержавейки наверно нет, хрома и никеля в клапанах , поршни скорее чугунные. Местами закаливали и обрабатывали шлифовкой
Some do, some don’t . The ones up in Kansas 20 odd years ago when I was doing this line of work were polished from head to toe. Brass shined and paint was clean and fresh. Beautiful old machines.
