General failure analysis of diesel engine

General failure analysis of diesel engine
●engine power decreased or engine produce black smoke:
1, the air filter dirty (clean or replace)
2, the compressor outlet and exhaust pipe connection leaks (tighten the clasp bands or fasteners)
3, the turbine inlet and exhaust pipe connection leaks (replace gasket, FASTENERS)
4, the engine intake manifold leak (gasket replacement, FASTENERS)
5, exhaust pipe gasket broken or damaged (replacement exhaust pipe or gasket, FASTENERS)
6, compressor impeller contamination (cleaning)
7, the pressurized gas damage (repair or replacement)
8, the fuel system failure.
● compressor side oil seal ring
1, the air filter dirty (clean or replace)
2, the compressor suction flow obstruction or contamination (dirt removal)
3, poor turbocharger oil return pipe (clean or replace)
4, the middle shell pressurized gas and oil sludge coking (clean or replace the supercharger)
5, engine piston rings or cylinder liner wear
6, pressurized air damage (repair or replacement)
● turbine side oil seal ring
1, poor turbocharger oil return pipe (clean or replace)
2, the middle shell turbocharger lubrication coke and sludge (clean or replace the supercharger)
3, engine piston rings or cylinder liner wear (repair or replacement)
4, turbocharger damage (repair or replace turbocharger)
● abnormal noise
1, the compressor suction duct obstruction leading to compressor surge
2, the compressor impeller contamination, leading to compressor surge
3, resulting from abnormal noise intake system leak
4, the outlet system leak abnormal noise generated
5, the rotor shell grazing
6, turbocharger damage (repair or replace turbocharger)
● increase in oil consumption
1, poor turbocharger drain line (to remove dirt)
2, the turbine end seal ring damage (to send turbocharger repair service station)
3, the compressor side seal ring damage (to send turbocharger repair service station)
4, supercharger housing accumulation of a large number of intermediate sludge (sent turbocharger repair service station)
5, turbocharger damage (repair or replace turbocharger)
6, oil grade does not meet the requirements (replacement of the oil)