Influence of spark plug gap size

The spark plug plays a key role in the operation of the car, and the size of the spark plug gap affects the ignition ability and reliability of the spark plug. The spark plug gap refers to the distance between the center electrode of the spark plug and the ground electrode. If the spark plug gap is too large or small, it will affect the engine to a certain extent. The working status of the spark plug is affected by the specific spark plug gap size as follows:

Spark plug gap is too large

During the use of spark plugs, the gap may become larger and larger. From the perspective of ignition, the larger the gap, the longer the arc distance, so that the area of ​​the fire point that contacts the oil-gas mixture will be larger, the ignition will be easier, and the combustion will be more complete .However, if the gap is too large, poor ignition will occur. A higher pulse ignition voltage is required, which will easily cause insufficient fuel combustion, resulting in increased fuel consumption, and flameout may occur during engine operation.discoverThe spark plug gap is too large, and the spark plug needs to be replaced in time.

Spark plug gap is too small

If the spark plug gap is too small, the car may not start, the arc generated is too short, the ignition energy is too short, the fuel in the engine cannot be ignited, and the combustion is insufficient during ignition, resulting in power loss, difficulty in starting, unstable idling, and Insufficient power, slow running, etc., will also increase fuel consumption.

The choice of spark plug should be based on the characteristics of the engine. The use of a large gap spark plug with a low engine speed is conducive to improving low torque, while a high speed one should use a small gap to reduce the misfire rate as much as possible to obtain better power. Before purchasing and installing spark plugs, you need to adjust the electrode gap of the spark plug. A proper gap will greatly help the engine's operating conditions, increase in power, and decrease in fuel consumption.