Applicable scope: 4B3.9-G10, Dong Dong Kang Kang 4B3.9-G1 related accessories: working principle of fuel pump bracket: each cylinder fuel injection pressure, increase of diesel, high pressure distribution installation location: on the right side of fault and analysis of engine piston perforation, governor card lag, causes high fuel consumption, power is not enough: analysis of the circuit there is air, low pressure oil blockage or leakage, plunger, plunger wear or fracture, the oil valve spring valve bad seal