Businesses listed under static engines typically deal with stationary engines: engines designed to operate in a fixed position rather than power a road vehicle. These may include vintage petrol, diesel or oil engines, as well as more modern units used to drive pumps, compressors, workshop equipment, agricultural machinery or generators. Some businesses specialise in particular makes, periods or engine types, while others cover a broader range. Typical services include buying and selling complete engines and parts, inspection, fault diagnosis, repair, servicing and restoration. Work may involve dismantling and rebuilding engines, machining or replacing worn components, and sourcing items such as carburettors, ignition parts, belts and bearings. Businesses may also advise on installation, operation and maintenance, or provide testing and repairs for equipment powered by a stationary engine.