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.
We call these natural magnets lodestones. Until about two hundred years ago, people made magnets by finding a lodestone and rubbing iron on it. The rubbing lined up the electrons of the iron so that all the electrons would pull in the same direction. But today we can use electricity to make magnets.