Wei Chai 290 National Machinery Co., Ltd., why is the power of the cable for changing the cylinder mattress refueling door small?

Let me analyze it for you. You changed four engines. In the meantime, have you moved anywhere else? If not, first of all, you should check whether the pistons in the four sets you replaced are the same as the original combustion chamber. And whether the cylinder pads are the same. If these are all right, you should check the timing. You can find this problem yourself. If the water temperature is abnormal, say it. ...