Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
Air-Cooled Engine:
Engine using air as a cooling system. The air is fan-driven across heavily finned cylinders and heads. The fins are usually made of aluminium alloys and increase the heat-dissipating area. Air-cooled engines are usually run at higher temperatures than water-cooled and so need larger bearing clearances. Due to the absence of the sound baffling water jackets they are also usually noisier.
