Süütejuhtme

Süütejuhtme, also known as an ignition wire or spark plug wire, is a crucial component in gasoline-powered internal combustion engines. Its primary function is to transmit the high-voltage electrical current generated by the ignition coil to the spark plug. This high-voltage pulse ignites the compressed air-fuel mixture within the cylinder, initiating the combustion process that drives the engine.

A süütejuhtme typically consists of a conductive core, often made of copper or a carbonized material, surrounded by an insulating layer. This insulation is vital to prevent the high voltage from arcing to the engine block or other nearby components, which would result in a loss of spark and engine misfires. The ends of the süütejuhtme are fitted with connectors that securely attach to both the ignition coil and the spark plug.

Over time, süütejuhtmed can degrade due to exposure to heat, oil, and vibration. This degradation can lead to increased electrical resistance, cracking of the insulation, or loose connections. Symptoms of faulty süütejuhtmed include engine misfires, rough idling, reduced power, poor fuel economy, and difficulty starting the engine. Regular inspection and replacement of süütejuhtmed are essential for maintaining optimal engine performance and preventing potential damage. They are typically replaced as a set when one shows signs of wear.