As the engine timing chain system gradually replaces the timing belt system, although the engine with timing chain system is called a maintenance-free engine, auto manufacturers will still remind car users to check the engine timing system regularly.
When a car travels 60,000-80,000 kilometers, the timing chain system needs to be inspected by car repair shop. If the car engine makes abnormal noises, it may be that the timing chain is elongated and needs to be inspected and repaired at car repair shop in time. If you continue to run, the timing chain will be easy to jump teeth, the ignition timing will be incorrect; the engine fuel consumption will be high, and the power will drop; it may also cause the piston to bend the valve, which will seriously damage the complete engine.
What are the destruction forms of the timing chain ?
- The surface of the roller is broken and cracked (the broken surface is caused by uneven pressure and friction on the surface of the roller, and the long-term non-stop work of the engine also aggravates the broken area of the roller);
- Wear of the inner mating surface of the roller (abrasive loss and alternating load during engine operation, and at the same time, the combined action of oxidation and corrosion causes the inner mating surface of the roller to wear);
- Wear of the sleeve surface (due to the abrasion and peeling and oxidation of the rubber paint on the sleeve surface);
- Wear of the pin surface (abrasion occurs between the sleeve and the pin surface and the carburized layer on the surface of the roller chain is worn, causing the pin surface to wear)
How to maintain and repair the timing chain system ?
The wear or rupture of the roller chain has become one of the main reasons why the timing chain system of the automobile engine is not durable, how we could do to help the engine to extend the service life, so the engine timing chain system could do function normally.
- Increase the lubrication of the timing system
- Carry out a comprehensive inspection and improvement of the loss status of the automobile engine timing chain system on a daily basis (If the wear elongation rate of automobile engine timing chain is too high, the valve opening angle of the car will be delayed, and the engine power will be reduced, the car’s fuel consumption will also be increased. )
Compared with the belt-driven engine , the engine with timing chain system is more stable and durable, and also it reduces the size of the car engine.
The timing chain system is mainly composed of timing chains, gears and tensioning parts. The hydraulic tensioner can adjust the tensioning force by itself, so that the chain tension is stable and unchanged.
To increase the service life of the chain is the same effect as increasing the life of car engine. At the same time, the timing chain system is not only improved safety and reliability, but also reduced the driving cost of customers. Therefore, car users has to pay attention to the maintenance and maintenance of the timing system, specially the main parts TIMING CHAIN.
Post time: Aug-09-2023