In the automotive maintenance and repair business, we often worry about accidentally purchasing counterfeit and substandard parts, as well as unsuitable parts. So, what should you pay attention to when purchasing auto parts? Wang Chang Bianxiao recently visited experts in the automobile maintenance industry and got the corresponding answers. The relevant content is now organized as follows: Pay attention to eight points when purchasing auto parts and maintenance: 1. Check whether the geometric dimensions are distorted. Some parts are subject to deformation due to improper manufacturing, transportation and storage. When inspecting, you can roll the shaft part along the glass plate once to see if there is any light leakage at the connection between the part and the glass plate in order to determine if it is bent. DuringFrom the selection of the steel plate or the friction plate of the clutch driven plate, you can hold the steel plate and the friction plate in front of your eyes and observe whether they are deformed. When selecting an oil seal, the end face of the oil seal with skeleton should be round and can be attached to the flat glass without deviation; the outer edge of the oil seal without skeleton should be straight, hand deformed and return. to its original form after releasing it. When selecting different stamps, be sure to also check the geometric size and shape. 2. Check if the brand logo is complete. The authentic outer packaging is of good quality, with clear writing on the box and bright overprint colors. Product name, specification, model, quantity, registered trademark, factory name, address and telephone number should be marked on the packing boxes and bags.Some manufacturers also brand their own accessories. Some important components, such as generator, distributor, fuel injection pump, etc. , also comes with an instruction manual, certificate of conformity and inspector's seal to guide users in proper use and maintenance. Be careful when purchasing to avoid purchasing counterfeit or poor quality products. 3. Check if the protective surface is intact. Most parts receive a protective coating at the factory. For example, piston pins and bearings are protected with paraffin; piston rings and cylinder liners are coated with anti-rust oil and wrapped in wrapping paper, valves, etc. are coated with anti-rust oil and wrapped in wrapping paper. Dip in anti-rust oil and pack in plastic bags. If the sealing sleeve is damaged, missing wrapping paper, anti-rust oil or paraffin mold at the time of purchase, it must be returned. 4. Check whether there is rust on the surface of the parts. The surface of qualified parts has both a certain degree of precision and a glossy finish. The more spare parts, the higher the precision and the stricter the anti-rust and anti-corrosion packaging. Please check when purchasing. If the parts are found to have rust stains, mold stains, or the rubber parts are cracked and lose elasticity, or there are obvious rotation marks on the surface of the trunnion , they must be replaced. 5. Check if the seams are flat. During the transportation and storage of spare parts, due to vibration and collision, burrs, indentations, damage or cracks often appear at the joints, affecting the use of the parts. Please check when purchasing. 6. Checkcheck whether the rotating parts are flexible. When purchasing rotating parts assemblies such as oil pumps, turn the pump shaft by hand. It must be flexible and free from blockages. When selecting a bearing, support the inner race of the bearing with one hand and rotate the outer race with the other hand. The outer ring should rotate freely and quickly and then gradually stop. If the rotating parts rotate abnormally, it means there is rust or deformation inside, so don't buy it. 7. Check if the adhesive part is loose. Accessories composed of two or more parts are crimped, glued or soldered, and there is no play between them. For example, the oil pump piston and the adjustment arm are assembled by crimping, the clutch driven wheel is riveted with the steel plate, and the friction plate is riveted with the steel plate. The steel plates are riveted or colleys. The paper filter element frame and filter paper are bonded together; the ends of the electric wire are soldered. If you find it loose when purchasing, you should replace it. 8. Check if there are any parts in the assembly. Normal assembly parts must be complete and intact to ensure smooth assembly and normal operation. If some small parts on some assembly components are omitted, the assembly components will not work or even be scrapped. The above are the items that Wang Chang Bianxiao provides you when purchasing auto parts. Hope this will be helpful to all car owners and friends!
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The steps to install the alternator belt of the Great Wall Fengjun 5 pickup truck are as follows :
1. First, remove it. The motor axis facilitates the subsequent winding ofthe belt.
2. Then finely adjust the position of the generator main shaft.
3. Then pull the two idler wheels of the generator outwards.
4. Then wrap the generator belt around the generator main shaft.
5. Then wrap the belt around the generator idler pulley.
6. Install the generator housing to facilitate belt installation.