The diesel generator engine may suddenly stop because of following: 1) Protective device activateda) Overspeed Check sensors for correct functioning, no medium by-passes the sensor, repair or replace defective parts 2) Governor or governor gear failureInspect the governor and its drive 3) Fuel control linkage seized or damagedIn this case, engine can not react properly to load changes and may suddenly stop or overspeed (and be stopped by protection) 3)Fuel oil pressure insufficient.FO filters clogged, the fuel tank is empty or fuel pump defective. 4)Air in the fuel system.Bleed the air/prime engine fuel system before restarting 5)Seizure ofa)piston |