In the purchase of Petrol Car parts, we often worry about accidentally buying counterfeit and shoddy Petrol Car parts and unsuitable Petrol Car parts. So, how can we buy qualified and suitable Petrol Car parts? Let's take a look at the detailed steps below!
Check whether the trademark logo is complete. The outer packaging of authentic products is of good quality, the handwriting on the packaging box is clear, and the overprinting color is bright. Some important parts such as generators, distributors, fuel injection pumps, etc. are also equipped with instruction manuals, certificates of conformity and inspector seals to guide users to use and maintain them correctly. You should carefully identify them when purchasing to prevent buying counterfeit and shoddy products.
Check whether the geometric dimensions are deformed. Some parts are prone to deformation due to improper manufacturing, transportation, and storage. When checking, you can roll the shaft parts along the glass plate to see if there is any light leakage at the joint between the parts and the glass plate to determine whether they are bent; when purchasing the clutch driven plate steel plate or friction plate, you can hold the steel plate and friction plate in front of your eyes to observe whether they are warped; when purchasing oil seals, the end face of the oil seal with a skeleton should be a perfect circle, which can be fitted with the flat glass without warping; the outer edge of the oil seal without a skeleton should be straight, and it should be deformed by holding it with your hand, and it should be able to return to its original state after letting go. When purchasing various types of gaskets, you should also pay attention to checking the geometric dimensions and shapes.
Check whether the joint is flat. During the transportation and storage process, Hongqi Car parts often produce burrs, indentations, breakages or cracks at the joint due to vibration and bumps, which affects the use of parts. Pay attention to inspection when purchasing.
Check whether the surface of the parts is rusted. The surface of qualified Hongqi Car parts has both a certain degree of precision and a bright finish. The more important the Hongqi Car parts are, the higher the precision, and the stricter the packaging anti-rust and anti-corrosion. When purchasing, you should pay attention to the inspection. If you find that the parts have rust spots, mildew spots, or the rubber parts are cracked, lose elasticity, or there are obvious turning tool lines on the surface of the journal, they should be replaced.
Check whether the protective surface is intact. Most parts are coated with a protective layer when they leave the factory. For example, the piston pin and bearing are protected with paraffin; the piston ring and cylinder liner are coated with anti-rust oil and wrapped with packaging paper; the valve, piston, etc. are soaked in anti-rust oil and packaged in plastic bags. If the sealing sleeve is damaged, the packaging paper is lost, and the anti-rust oil or paraffin is lost during purchase, it should be returned.
Check whether the glued parts are loose. Hongqi Car accessories composed of two or more parts are formed by pressing, gluing or welding. There is no looseness between them. For example, the oil pump plunger and the adjusting arm are combined by pressing; the clutch driven edge and the steel sheet are riveted, and the friction plate and the steel sheet are riveted or glued; the paper filter element skeleton and the filter paper are glued; the wire ends of electrical equipment are welded. If any looseness is found during purchase, it should be replaced.