The six-cylinder diesel generator was normal at first, then became powerless after 2 hours of operat

If the air inlet is blocked, the air filter must be blocked. You must first remove the air filter, then test the car (be sure to prevent dust and foreign objects from entering the respiratory tract and be sure to install an air filter). filter during normal use!!)

If everything is normal, replace the air filter. If it still doesn't work, check other places in the intake pipe. This failure must be caused by a blocked air intake. (be careful to prevent dust and foreign objects from entering the engine during maintenance. Otherwise the damage will be serious!)

Valve clearance can also be a reason, but in In this case, the valve clearance is already ridiculously large. Listen carefully to see if there is a distinct metallic impact sound coming from the valve cover at idle. If so, it may be a valve clearance problem. If you are nots sure, you can open the valve cover and check the valve clearance. First, turn to the cylinder compression top dead center (the method is: loosen the high pressure oil pipe joint of the cylinder injector, and turn until the fuel spurts out suddenly from the oil pipe, which is the top dead center of cylinder compression.) Then use the feeler gauge check and adjustment. If there is no feeler gauge for measurement, you can turn the rocker arm with your hands to feel a slight gap, because in this case the gap will only be too large.

Is the power of the diesel engine insufficient when it emits black smoke? If it is insufficient, is it due to the reasons above? Whether the diesel engine power is normale when it emits black smoke, it means that the quantity of fuel injected is large, it is necessary to calibrate the oil pump.