How to remove and install spark plugs

Check whether the parameters match before installation. I wonder if car owners have ever encountered such a situation. When driving to work in the morning, they found it difficult to start the engine. It takes several ignitions to start the engine. After the engine is started, the engine jitter can be obviously felt in the car. The above situation is probably that the spark plug on the car is stained or has reached its working life and needs to be replaced. Now the newly listed cars will add a hood to the engine, which will play a role in beauty and heat insulation. To remove the spark plug, you must first remove the hood. Of course, for the V-engine with the intake manifold in the middle of the engine, some accessories such as the intake pipe should be removed. To remove the spark plug, you must pull out the ignition coil. After removing the wire plug and bolt on the ignition coil, you can pull out the ignition coil. The ignition coil and cylinder block are sealed with rubber, which requires a certain amount of force when pulling out. Removing the spark plug requires a wrench, a long telescopic rod and a hexagonal sleeve. Spark plugs used in automobiles are generally disassembled with a hexagonal sleeve of 16mm, and the magnetic hexagonal sleeve can take out the rotated spark plug when disassembling the spark plug. Before installing the spark plug, it is necessary to check whether the parameters such as the gap and calorific value of the new spark plug match the engine of the vehicle to be installed. When installing, if possible, before installing the spark plug, apply a proper amount of "thread anti-seize agent" to the new spark plug thread. When installing, fix the spark plug on the sleeve, and then put the spark plug back to its original position for installation. It is forbidden to take the spark plug out of the installation hole directly. The height difference may cause the deformation of the side electrode, reduce the gap, lead to early ignition, and affect the ride comfort of the engine. Text/Figure Qinglin