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.