Bearings scored from lack of oil supply or bad oil / contamination
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- Marine Turbo services and repairs IHI turbos Below are typical IHI turbo problems that we are experienced in repairing. These include carbon build-up, bearing jourmal wear, balancing issues and broken blades. We provide IHI turbo rebuilt parts and IHI spares and can refurbish your IHI turbo on an exchange or repair basis to Lloyds standards.
- Do you need a turbocharger rebuilt? Turbo Repair is here to help. Please give us a call.
Bearing failure
Scored bearing on turbine wheel. See shaft is blue from getting hot from lack of oil lubrication
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Cracked turbine housing at exhaust inlet
Cracks in trubine housing inside housing
Internal turbine housing cracks
Burst compressor wheel
Foreign object damage to compressor wheel
Compressor wheel failure after scrubbing walls of compressor cover, secondary failure after bearings have failed
Exhaust bypass cracks
Compressor wheel scrubbing compressor cover
Foreign object damage on compressor inlet
Foreign object damage on compressor inlet
Thrust bearing stack up
Ihi Turbo Repair Manual Pdf
Example of thrust bearing cracks and damage
Thrust bearing scoring and damage
Piston ring damage and bearing journal damage from lack of proper oil supply
Broken turbine wheel and shaft from abrupt stop
Broken turbine wheel blade from foreign object damage, most likely from an engine valve or piston
Foreign object damage from engine
Damage to turbine wheel from scrubbing turbine housing
Vanes on variable vane geometry turbo
Damage to vanes on variable vane geometry turbo
Ihi Turbo Repair Manual Parts
Turbocharger air flow diagram
Ihi Turbo Repair Manual Transmission
| Possible Failure Diagnosis | Engine Running Hot | Poor Transient Response | Smoke | Engine Lacks Power | Black Exhaust Smoke | Blue Exhaust Smoke | High Oil Consumption | Turbocharger Noisy | Cyclic Sound from the Turbocharger | Oil Leak from Compressor Seal | Oil Leak from Turbine Seal |
| Dirty air cleaner Clean or replace element according to manufacturer’s recommendations | |||||||||||
| Restricted compressor intake duct Remove restriction or replace damaged parts as required | |||||||||||
| Restricted air duct from compressor to intake manifold Replace seals, gaskets or tighten fasteners as required | |||||||||||
| Restricted intake manifold Refer to engine manufacturer’s manual and remove restriction | |||||||||||
| Air leak in feed from air cleaner to compressor Replace seals, gaskets or tighten fasteners as required | |||||||||||
| Air leak in feed from compressor to intake manifold Replace seals, gaskets or tighten fasteners as required | |||||||||||
| Air leak between intake manifold and engine Refer to engine manufacturer’s manual and replace gaskets or tighten fasteners as required | |||||||||||
| Foreign object in exhaust manifold (from engine) Refer to engine manufacturer’s manual and remove obstruction | |||||||||||
| Restricted exhaust system Remove restriction or replace damaged parts as required | |||||||||||
| Exhaust manifold cracked, gaskets blown or missing Refer to engine manufacturer’s manual and replace gaskets or damaged parts as required | |||||||||||
| Gas leak at turbine inlet/exhaust manifold joint Replace gasket or tighten fasteners as required | |||||||||||
| Gas leak in ducting after turbine outlet Refer to engine manufacturer’s manual and repair leak | |||||||||||
| Restricted turbocharger oil drain line Remove restriction or replace damaged parts as required | |||||||||||
| Restricted engine crankcase breather Refer to engine manufacturer’s manual, clear restriction | |||||||||||
| Turbocharger bearing housing sludged or coked Change engine oil and oil filter, overhaul or replace turbocharger as required | |||||||||||
| Fuel injection pump or fuel injectors incorrectly set Refer to engine manufacturer’s manual and replace or adjust faulty components as required | |||||||||||
| Engine valve timing incorrect Refer to engine manufacturer’s manual for correct settings and adjust as required | |||||||||||
| Worn engine piston rings or liners Refer to engine manufacturer’s manual and repair as required | |||||||||||
| Burnt valves and/or pistons Refer to engine manufacturer’s manual and repair as required | |||||||||||
| Excessive dirt build-up on impeller and/or diffuser vanes Clean in accordance with the appropriate manufacturer repair manual | |||||||||||
| Turbocharger damaged Find and correct cause of failure, repair or replace turbocharger as necessary | |||||||||||
| Failed diaphragm Replace using correct Actuator Service Kit | |||||||||||
| Siezed valve Free valve/replace complete turbine housing sub-assembly | |||||||||||
| Leaking hose Replace hose and clips | |||||||||||
| Wastegate mechanism set incorrectly |