How often should the valve clearance of a truck be adjusted?
1 Answers
Truck valve clearance is generally adjusted every 50,000 kilometers. More extended information is as follows: 1. Valve clearance: It is set to ensure the normal operation of the internal combustion engine's valve train. Since the valve train operates at high speeds and high temperatures, components such as the valve tappet and valve stem expand when heated, which can automatically push open the valve, causing the valve and valve seat to not close tightly, leading to air leakage. 2. To avoid this phenomenon: When designing the valve train, a certain gap is left between the end of the intake and exhaust valve stems and the tappet or rocker arm, and the adjusting screw. This gap is the valve clearance.