Surveys show that 30% of vehicle failures are caused by consumers' bad driving habits, 70% of the reasons are caused by the quality of auto parts and assembly technology problems, and the use of fake and shoddy parts caused by vehicle body damage accounted for most of the situation. For an average consumer, how to distinguish between genuine and fake parts? How can you use real parts? Here are 10 tips for identifying fake parts.
1. Check whether the trademark is complete
The packaging quality of authentic products is good, the writing on the packaging box is clear, the overprinting color is bright, the packaging box and bag are marked with the product name, specifications, models, quantities, registered trademarks, factory names, factory addresses and phone numbers, etc., and some manufacturers also play their own marks on the accessories. Some important components such as generators, distributors, fuel injection pumps, etc., are also equipped with instructions, certificates and inspectors to guide users to use and maintain correctly. When purchasing should be carefully recognized, to prevent buying fake and shoddy products.
2. See if the geometry is deformed
Some parts are prone to deformation due to improper manufacturing, transportation and storage. During inspection, the shaft parts can be rolled around the glass plate to see if there is light leakage at the fitting of the parts and the glass plate to determine whether it is bent; When purchasing the clutch driven plate steel plate or friction plate, the steel plate and friction plate can be held in front of the eyes to observe whether it is warped; In the purchase of oil seals, the end face of the oil seal with a skeleton should be round, and can be fitted with flat glass without deflection; The outer edge of the oil seal without skeleton should be correct, and it should be deformed by hand, and it should be able to return to its original state after letting go. In the purchase of various types of padding, you should also pay attention to check the geometric size and shape.
3. See if the binding part is smooth
Parts in the handling, storage process, due to vibration, bump, often produce burrs, indentation, damage or cracks in the combined part, affecting the use of, should pay attention to check when purchasing.
4. See if there is rust on the surface of the parts
Qualified parts surface, both a certain degree of precision, but also have a good finish, the more important parts, the higher the precision, packaging rust, anti-corrosion more stringent. The purchase should pay attention to check, if the parts are found to have rust spots, mildew spots or rubber parts cracked, lost elasticity, or the journal surface has obvious turning lines, should be replaced. To see whether the protective surface is intact, most parts are coated with a protective layer when leaving the factory, such as the piston pin, the bearing shell with paraffin protection; The piston ring and cylinder liner are coated with anti-rust oil and wrapped with wrapping paper; Valves, pistons, etc., are wrapped in plastic bags after soaking in anti-rust oil. When purchasing, if the sealing sleeve is damaged, the wrapping paper is lost, the anti-rust oil or paraffin is lost, it should be returned and replaced.
5. See if the bonded parts are loose
Accessories composed of two or more parts, between the parts are by pressing, bonding or welding, they are not allowed to loose phenomenon, such as the oil pump plunger and adjusting arm is combined by pressing; The clutch driving wheel and the steel plate are combined by riveting, and the friction plate and the steel plate are riveted or bonded; Paper filter core skeleton and filter paper are formed by gluing; The wire ends of electrical equipment are welded. If it is found to be loose when purchasing, it should be replaced.
6. See whether the rotating parts are flexible
When purchasing the rotating parts assembly such as oil pump, rotate the pump shaft by hand, should feel flexible, no stuck; When purchasing rolling bearings, one hand supports the inner ring of the bearing, the other hand spins the outer ring, the outer ring should be able to rotate quickly and freely, and then gradually stop. If the rotating parts do not rotate, it indicates that the internal rust or deformation, do not buy.
7. See that the assembly parts have no missing parts
The regular assembly parts must be complete and intact to ensure smooth assembly and normal operation. If the individual small parts on some assembly parts are missing, the assembly parts will not work or even be scrapped.
The price of fake goods is usually more than ten times cheaper than the real thing, of course, this is the price of the difference in quality, consumers must make sure that the low-price products are normal discounts or price cuts when buying.
9. See if the packaging is fine
Generally speaking, there are certificates and inspector stamps in the genuine packaging box, and some important components such as distributors, fuel injection pumps, etc., are also equipped with instructions for use. And many fake packaging printing is very rough, there is no instruction manual.
10. Select traceable parts
Purchased parts can be traced back to the source, and no parts from nowhere can be used. Fake and shoddy parts are often easy to cause damage to the vehicle body.
