What is the phenomenon of the start-up difficulties of diesel generators? In accordance with the diesel generator set start procedure, it can not start more than 3 times in a row, even with auxiliary means, such as heating the water in the water tank, adding oil to the air intake pipe, igniting the air at the air inlet, or the two cooperating to force the cradles together. When it is not possible to start the diesel engine, it can be considered that the diesel engine has difficulty in starting. Is there a problem with the unit or the diesel engine parts? Hua Quan Power made an introduction!
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1, the compression system failure
Cylinder liner cracks or trachoma leaks; diesel engine parts piston ring wear and leakage; piston ring adhesive stuck; piston ring openings overlapping; cylinder liner severe wear; cylinder gasket damage; burning chamber insert burning, dislocation or fall off ; Start spray hole deflection or blockage; substitute parts are not suitable, such as cylinder head is too thick, resulting in reduced compression ratio.
2, the failure of the valve train
Severe clogging of air filter, insufficient air volume, blocked exhaust pipe, poor exhaustability, incomplete decompression, inflexible rotation, poor seal due to carbon deposits and valve seat wear, and valve stem stuck in the conduit. The gas spring is broken; the valve seat ring is loosened and fractured; the turbine shaft interferes with the tray of the tappet, so that the valve can not be opened and closed on time; the valve clearance adjusts the screw pattern, looseness and the like.
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3, fuel supply system failure
Blocked in the oil line; Oil or water in the oil line; Incorrect fuel type; Low fuel supply from the fuel injection pump; Wear; speed adjustment lever fork foot is too low to touch the pump body, or too high to fit the plunger of the fuel pump plunger; there is dirt between the plunger pair and the oil valve sealing surface; the injection pump spring breaks; injector Shaft pin stuck; injector nozzle blocked, burned, steel ball lost; injector seal surface damage; oil pump timing gear installation error.
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4, speed control system failure
Sliding disc type governor of diesel engine parts, ball shedding or missing; steel ball stuck to slide out; governor spring or adjustment screw loose; flyweight governor flying block and pin fall off; The block seat is stuck; the governor shaft bumps, and the reciprocating motion is not flexible.
In addition, diesel generator sets such as oil grades are not right, the viscosity is too large; assembly errors when replacing parts may be called diesel generator set start-up difficulties, diesel engine start-up difficulties, the reasons are many, sometimes due to a factor, Therefore, when dealing with difficulties in starting, it must be considered in many ways to find out the reasons for troubleshooting.
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