If the timing chain fails, there will usually be signs, such as abnormal noise from the engine. In addition, the timing chain failure can also cause problems such as increased vehicle fuel consumption, difficulty in starting the vehicle, weak acceleration, delayed response, and serious exhaust emissions.
The timing chain is lubricated by lubricating oil. If the engine lubricating oil is not replaced for a long time or the oil quality is not good, it is easy to increase the friction between the timing chain and the sprocket, which will reduce the life of the timing chain. If the abrasion is severe, the timing chain is prone to failure or damage, and it will be gradually elongated, which may cause tooth skipping and cause engine failure.
Timing chain abnormal sound video
If the timing chain jumps gears, the car will feel weak in refueling. If the tooth jump is severe, the engine will shake, which may cause difficulty in starting the car, and even damage the valve. If you want to detect whether the timing chain is stretched, you can use a spring balance to detect the elongation of the chain in 3 or more places. If it exceeds the used length, it should be replaced in time; a more professional approach is to read the crankshaft at a 4S shop Sensors and camshaft sensors are detected. If there is an alarm for running delay, there may be a hidden danger of chain elongation, and it should be overhauled or replaced in time.
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