How long does the new car run in and the valve doesn't ring?

It's usually 5000KM. After the running-in period is over, you can check the intermittence of the valve with a feeler gauge, and you can adjust it if it is greater than the specified range. The running-in period of a car is generally 5000KM, and the running-in period ends when the mileage exceeds 5000KM. Our running-in period here can only be judged by mileage, not by time.

Vehicle condition after driving 5000 kilometers:

1 and automobile steering system after 5000KM; At this time, both the booster motor and the steering knuckle have mechanical memory, and the steering angle has the maximum rotation angle. After 5000KM, the timing of forward and reverse rotation of the motor and the joint of the steering knuckle have reached a high degree of adaptability.

2. For the suspension system after 5000KM, due to the protection of running-in period, the connecting rod, elastic element and shock absorber have all adapted to the corresponding working mode. As a filtering device, the tighter the use effect, the longer the period, and the appropriate clearance will make the whole suspension system more elastic.

After 3.5000KM, the combination of engine and gearbox is the most needed running-in. When the vehicle runs smoothly for 5000KM, it can complete the mechanical memory from throttle, valve, cylinder, piston, crank connecting rod to gearbox gear, and smooth all defects to achieve normal use.

Driving at high speed in a violent state will destroy the tightness and pressure in the cylinder, which will seriously lead to its rapid aging. Similarly, the excessive wear between gears in the transmission during the running-in period will cause the gap between gears to become larger, resulting in untimely and irregular power connection.

The driving technique is slow and steady, and the engine speed is low and steady. Therefore, in this low-speed state, the wear of the vehicle caused by high-speed driving is extremely slight.