Weichai 102 horsepower engine fuel pump assembly supply time is too late, the formation and combustion gas mixtures were deferred until the piston down, due to the rapid increase in the combustion space, can not produce the original should have a high expansion force Therefore, in the diesel engine flameout of the moment, the crankshaft rotational inertia force becomes smaller, it will immediately stop turning, the performance of the fan or flywheel immediately stop the movement now generally above 500h diesel engine fuel injection pump or by the overhaul, must be given to adjust Best fuel supply advance angle (injection time)