[Auto repair knowledge]How to choose and replace car spark plugs

How to choose and replacecarSpark plug, First check if the spark plug is indeed damaged, it should be replaced, in addition to the end of the service life should also be replaced. The replacement of the spark plug should be based on the structural performance characteristics of the engine, especially the model specified in the engine manual. If the spark plug has serious carbon deposits during use, a spark plug with a higher calorific value should be selected; if the engine has hot ignition, a spark plug with a lower calorific value should be selected. For multi-cylinder engines, it is necessary to ensure that the spark plugs of each cylinder have the same model, new and old levels. It is recommended to replace them in groups to avoid small losses.For imported cars, there is a lack of spark plugsAccessoriesThe domestic model can be used instead, and the screw-in thread length, thread diameter and calorific value of the substitute model must be consistent with the original model.Spark plug cleaning For example, when there is carbon deposit or oil deposit on the spark plug, it can be soaked in gasoline, kerosene, acetone solvent. After the carbon deposit is softened, use a non-metallic brush to clean the carbon deposit on the electrode and the ceramic core and the cavity of the shell. Air dry, do not use a knife, sandpaper to polish or burn with gasoline to prevent damage to the electrode and porcelain insulator. Related: ·Auto insurance: Novice insurance makes it easy[汽车保险知识]
·Compulsory compulsory insurance should cancel property compensation and expect to pay more reasonable[汽车保险知识]
·Strengthen risk awareness, who will pay the bill if there is a problem in the new car test drive?[汽车常识]
·A list of the basic expenses of "raising" a car in 2008[汽车维修知识]
·rainy seasoncar maintena