Turbocharger Symptom

• Increased resistance to flow of gases air/exhaust rotor fouling, due to the charge air cooler or filter silencer being dirty.
• Two stroke engines could have defective non-return valves.
• Low air inlet temperatures.
• Exhaust gas back pressure too high.
• Deposits on inlet and exhaust valves.

Turbocharger Symptom

• Engine injectors faulty
• Engine output higher than expected due to overload.
• Gauge reading incorrectly.
• Dirty or partly clogged / damaged nozzle ring due to foreign object

Turbocharger Symptom

• Air manifold fouled and leaking or exhaust gas leaking between engine manifold and turbocharger inlet.
• Pressure gauge reading incorrectly or connection leaking.
• Dirty air filter / rotor assembly / diffuser – nozzle. Labyrinth seals worn or dirty.
• Turbine / nozzle blading damaged.
• Exhaust back pressure too high.
• Compressor wheel fouled.
• Defective bearings.
• Rotor touching or foreign object restrictions.

Turbocharger Symptom

• Air inlet to cylinders too high, check air cooling for water circulation/temperature or tube stack blockages and insufficient venting.
• Leaking air manifold / exhaust manifold.
• Fuel Injection faults, possible late injection or non sealing nozzles.
• Turbocharger filters choked or dirty compressor wheels, exhaust back pressure too high / economiser blocked.
• Damaged turbine blades and nozzle ring.
• Deposits on inlet or exhaust valves.

Turbocharger Symptom

• Rotor fouling or dirty, damaged bearings or foreign bodies inside unit.
• Turbine blades touching shroud ring.
• Bearing clearance problems.

Turbocharger Symptom

• Excessive clearances with labyrinth sealing arrangements, bearing chamber sealing becomes compromised due to gaskets or locking elements.
• Thrust ring or locating ring defective.
• Excessive pressure in oil discharge or crankcase.
• Seal air failure.
• Dirty oil filter.
• Oil inlet temperature too high.
• Oil gauge defective.

Turbocharger Symptom

Turbocharger Symptom

• Exhaust gas enters the bearing housing.
• Sealing air passages become blocked.
• Rotor labyrinth seals worn or damaged, casing rotor bore worn, labyrinth clearances too large.

Turbocharger Symptom

• Unbalanced rotor assembly due to dirt or foreign object damaged turbine blades or compressor blades.
• Bent rotor / rubbing clearances or defective bearings or assembly of the bearings incorrectly.
• Rotor rubbing.