🛠 Как сделать кожаную манжету для насоса примуса и как заменить кольцо с пупырышками на гладкое.

I used fluoroplastic as the material for making the piston only because it is the most "slippery" of polymers, and it was at hand. Any plastic (organic glass, caprolon, polyethylene, etc.) will do instead of fluoroplastic. They are quite capable of withstanding the temperature to which the tank heats up during operation - 50..70C. (PT-1 and Shmel-2 can reach 80C). A higher temperature in the tank is already a symptom of improper operation of the primus, which can lead to undesirable consequences, of which a melted piston is the least of the problems.