Steel Valve

Steel Valve is a machine part used to make a Diesel Engine. It requires the use of a Multipurpose Newcomen Engine to craft.

Crafting
Fire a Steel Ingot at a Firing Forge using Wooden Tongs. Then use the hot metal on a Firing Newcomen Hammer once to forge a Piston Blank (Note: Hot metal cools after 10 seconds). Use the cool piston blank on a Firing Newcomen Lathe to get a Precision Piston. Using again on the lathe will craft Steel Valve.