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Abby Yuan

maintenance and troubleshooting of automotive engines

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maintenance and troubleshooting of automotive engines

Maintenance of spark plugs

Spark plug is one of the components with many faults in engine ignition system. If it is neglected or improper in the selection, use and maintenance of spark plug, its normal function will be affected.

There are seven taboos for the use and maintenance of spark plugs.

1) avoid long-term unclean carbon deposition. When spark plug is used, its electrode and skirt insulator will produce carbon deposition, if not cleaned for a long time, it will accumulate more and more, eventually lead to electrode leakage and even can not jump fire. Therefore, it should be regularly (generally 3,000-5,000 km) to remove carbon deposits, do not wait for the spark plug not working before cleaning.

1) avoid long-term use. Spark plug has economic life, if it is still used beyond the economic life, it will not be conducive to the power and economy of the engine. The results show that with the prolongation of the service life of spark plug, the end face of the center electrode will change to circular arc shape and the side electrode will change to concave arc shape, which will increase the gap between the electrodes and make it difficult to discharge (that is, to produce sparks) and affect the normal operation of the engine.

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