Turbocharger - Diesel USA

1 TurbochargerTurbocharger Failure DiagnosisLoss of power, excess smoke, high fuel consumption, overheating, high exhaust temperatures and oil leakages from the Turbocharger are all symptoms that could indicate Turbocharger malfunction. However, these faults are often wrongly attributed to the Turbocharger because defects in other components can produce the same symptoms. The Turbocharger performance can only be impaired by mechanical damage or blockage caused by checklist provides a comprehensive list of the most common symptoms related to Turbocharger failure. BEFORE replacing a Turbocharger , verify the problem by consulting the chart below. If after taking the appropriate action, problems still persist, please contact your nearest authorised Holset distributor for air cleanerClean or replace element according to manufacturer s recommendationsRestricted compressor intake ductRemove restriction or replace damaged parts as requiredRestricted air duct from compressor to intake manifoldReplace seals, gaskets or tighten fasteners as requiredRestricted intake manifoldRefer to engine manufacturer s manual and remove restrictionAir leak in feed from air cleaner to compressorReplace seals, gaskets or tighten fasteners as requiredAir leak in feed from compressor to intake manifoldReplace seals.

2 Gaskets or tighten fasteners as requiredAir leak between intake manifold and engineRefer to engine manufacturer s manual and replace gaskets or tighten fasteners as requiredForeign object in exhaust manifold (from engine)Refer to engine manufacturer s manual and remove obstructionRestricted exhaust systemRemove restriction or replace damaged parts as requiredExhaust manifold cracked, gaskets blown or missingRefer to engine manufacturer s manual and replace gaskets or damaged parts as requiredGas leak at turbine inlet/exhaust manifold jointReplace gasket or tighten fasteners as requiredGas leak in ducting after turbine outletRefer to engine manufacturer s manual and repair leakRestricted Turbocharger oil drain lineRemove restriction or replace damaged parts as requiredRestricted engine crankcase breatherRefer to engine manufacturer s manual, clear restrictionTurbocharger bearing housing sludged or cokedChange engine oil and oil filter.

3 Overhaul or replace Turbocharger as requiredFuel injection pump or fuel injectors incorrectly setRefer to engine manufacturer s manual and replace or adjust faulty components as requiredEngine valve timing incorrectRefer to engine manufacturer s manual for correct settings and adjust as requiredWorn engine piston rings or linersRefer to engine manufacturer s manual and repair as requiredBurnt valves and/or pistonsRefer to engine manufacturer s manual and repair as requiredExcessive dirt build-up on impeller and/or diffuser vanesClean in accordance with the appropriate Holset repair manualTurbocharger damagedFind and correct cause of failure, repair or replace Turbocharger as necessaryFailed diaphragmReplace using correct Actuator Service KitSiezed valveFree valve/replace complete turbine housing sub-assemblyLeaking hoseReplace hose and clipsWastegate mechanism set incorrectlyContact nearest Holset distributor for correct setting detailsOil Leak from Turbine SealOil Leak from Compressor Seal Cyclic Sound from the Turbocharger Turbocharger NoisyHigh Oil ConsumptionBlue Exhaust Smoke Black Exhaust Smoke Engine Lacks PowerSmokePoor Transient ResponseEngine Running HotCopyright 2006, Cummins Turbo Technologies Ltd.

4 All rights reserved. Holset is a registered trademark of Cummins Turbo Technologies No. 3766265 Ref. MW/MS E ect Date: 09:06 DIESELUSAGROUP provided by:more info available at.