How to choose good auto parts
In car maintenance and repair, people often accidentally buy some fake and inferior parts and some substandard parts, and feel very annoyed. Then, what method must be used to buy suitable car parts? Through the following methods, you can buy regular products of very good quality.
1. Check if the trademark of this auto parts is complete, the quality of the regular product packaging is very good, and the writing on the box is very clear, the overprint color is also very bright, and the product on the box and bag should be Name, specification, quantity, registered trademark, factory name, factory address and phone number, etc. These manufacturers will also put their own marks on the accessories. Some very important auto parts, such as generators, distributors, fuel injection pumps, etc. With some instruction manuals, certificates of conformity and original inspection, we use this method to guide users on how to use and maintain them correctly, so you must carefully read them when you buy them to prevent counterfeit and shoddy products.
2. Check whether the size of the nodule is deformed. Some parts are easily deformed due to improper manufacturing, transportation and storage. Therefore, during inspection, you can roll the shaft parts along the glass plate to see if the parts and the glass plate fit together. If there is light leakage, use this method to judge whether it is bent or not. When purchasing the clutch driven disc steel plate or friction plate, you can put the steel plate friction plate in front of your eyes and observe whether there is warping. When purchasing an oil seal, the end face of the framed oil seal should be straight, and the circle can fit the flat glass surface without frame. The outer edge of the oil seal should be straight.
3. Check if the end is flat. During the transportation and storage of auto parts, burrs, indentations, breakages or cracks are often generated in the joint part due to vibration and collision, which will affect the use of parts, so buy Attention should be paid to the inspection.
4. Check if there are any traces of rust on the surface of auto parts. Some qualified parts have some ice degree and incremental finish on the surface. Therefore, the more important parts are, the higher the accuracy will be. The rust and anti-corrosion are also stricter, so you must pay attention to inspection when you choose to buy. If you find that there are spots on the school uniform, spots or loss of elastic shaft diameter, the surface has obvious turning tool lines and should be replaced in time.