a small air leak at a crank seal or an intake gasket will cause the usually perfect fuel air mixture in the crankcase to become slightly lean sometimes very lean this lean mixture can quickly result in a seized piston air leaks are by far the number one cause of vintage engine piston seizures
Lugs are the electrical connectors that terminate the electrical circuit. Lugs are made of copper, aluminum, or bronze. They are made for the smallest wire size, 26 gauge to the largest 2000 MCM. Lugs can be mechanical or set screw; compression or crimp, solder or weld; or clamp type.
Beer kegs are made of stainless steel, or less commonly, of aluminium. A keg has a single opening on one end, called a bung. A tube called a spear extends from the opening to the other end. There is a self-closing valve that is opened by the coupling fitting which is attached when the keg is tapped.