How to adjust the ignition timing of Weichai engine?

[OSkylar]

Weichai ignition timing adjustment method is as follows: 1. First align the scale line, generally align to 10 degrees. 2. Determine whether the exhaust rocker arms of cylinder 1 and cylinder 2 are fully depressed. 3. Align the fuel pump scale (the scale line of the fuel pump indicates fuel injection for cylinder 1). Relevant information about ignition timing is as follows: 1. Ignition timing refers to the angle between when the piston reaches top dead center and when ignition begins. Professionally, it is called ignition advance angle. 2. If ignition occurs too early, detonation will occur; if too late, knocking will occur, the engine will overheat, and mechanical efficiency will decrease. Therefore, there should be an optimal ignition advance angle, which means adjusting the ignition timing.