What is Fuel Injection Timing?

[VanAndres]

Fuel injection timing refers to the correct fuel supply time of the injection pump, generally expressed by the fuel injection advance angle. The fuel injection advance angle is the crankshaft rotation angle from when the No.1 cylinder plunger of the injection pump begins supplying fuel until the piston of that cylinder reaches top dead center. Below is the relevant introduction: The fuel injection advance angle is the crankshaft rotation angle from when the No.1 cylinder plunger of the injection pump begins supplying fuel until the piston of that cylinder reaches top dead center. Generally, the fuel injection advance angle for diesel engines is 15-25°. If the fuel injection advance angle is too large or too small, it will affect the engine's working performance. When a vehicle has traveled a certain mileage or after the injection pump has been overhauled and reinstalled during maintenance, the fuel injection timing must be checked and adjusted to ensure the diesel engine operates under the optimal or near-optimal fuel injection advance angle.