Quality

Turbocharger shaft damage
Shaft necks damaged because of deterioration of oil lubricating properties (its contamination) / periodic oil film cracking in turbocharger bearings (traces of main bearings friction visible on the turbocharger shaft)

Turbocharger shaft damage
Reduced lubrication parameters – too low pressure or insufficient oil quantity delivered to bearings

Turbocharger shaft damage
Reduced lubrication parameters – too low pressure or insufficient oil quantity delivered to bearings

Operation under too high pressure and temperature
Oil loses its lubricating properties and sticks on the shaft where it is carbonised and causes irreparable damage to it. It may also cause breaking off the wheel blades when the strength of materials, which they are made of, is exceeded and deformation of blades resulting in sudden damage to the turbocharger.

Turbocharger shaft damage
Shaft necks wear (polished) because of reduction in oil lubricating parameters (e.g. as a result of thinning with fuel, coolant or tiny contaminants)

Turbocharger shaft damage
Shaft neck damage caused by lubrication of turbocharger bearings with contaminated oil (e.g. with file dust)

Damaged sliding surface of the main bearing
Scratched main bearing raceway -as a result of oil contamination e.g. with file dust.

Axial bearing damage
Axial bearing surface wear. The damage was caused by clogging the turbocharger oil passage after using flexible sealing compound at the connection of oil supply conduit to the turbocharger

Axial bearing damage
Scratches on the bearing sliding surface caused by contaminants present in engine oil.

Axial bearing damage
Exaust pressure not ok

Mechanical damage of turbine blades
Mechanical damage of turbine blades caused by impact of hard contaminant present in exhaust gas. Visible material losses at contact places of blades with exhaust gas stream leaving the engine exhaust manifold.

Mechanical damage of compressor blades
Mechanical damage of the blades? edges of attack caused by contact with sand or salt grains present in the sucked air.

Mechanical damage of compressor blades
Mechanical damage of the compressor blades’edges of attack caused by impact of hard foreign matter which was present in the engine intake system.

Mechanical damage of compressor blades
Mechanical damage of the compressor blades? edges of attack caused by impact of hard foreign matter which was present in the engine intake system.

Mechanical damage of compressor blades
Mechanical damage of the compressor blades caused by impact of small-sized foreign matter.

Mechanical damage of compressor blades
Mechanical damage of the compressor blades caused by impact of small-sized foreign matter.

VNT damaged
The probelm is the fusion of the piston head.