Spark Plug, The

Creator: CHAMPION SPARK PLUG CO P O BOX 910 TOLEDO OH 43661 PORTAFILMS 4180 DIXIE HIGHWAY DRAYTON PLAINS MI 48020

Format: 16mm

Sound: sound

Description: Uses macrophotography, time-lapse, animation and live-action photography in discussing the history, function, complex construction and design of spark plugs and their importance to the efficient operation of internal combustion engines. Explains trends toward improved emission control and fuel economy.