MET-WB 66WB
The MET‑WB 66WB is a water‑cooled turbocharger from Mitsubishi Heavy Industries designed for four‑stroke medium‑speed diesel engines up to about 8 MW, delivering high boost pressure in a compact package.
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Common issues
- Compressor wheel fouling due to poor air filtration
- Turbine blade erosion from high-temperature exhaust gases
- Bearing wear and vibration caused by improper lubrication or misalignment
- Diffuser and nozzle ring wear from high-velocity gas flow
- Seal leakage and oil contamination from worn or damaged seals
- Rotor imbalance and vibration from uneven compressor or turbine wheel wear
- Control system faults and sensor calibration issues
Inspection checklist
- Visual inspection of compressor and turbine wheels for fouling or erosion
- Check bearing temperatures and vibration levels
- Inspect diffuser and nozzle rings for wear and damage
- Verify proper lubrication and oil quality
- Check control system sensors and calibration
- Inspect seals and gaskets for signs of leakage or damage
- Verify proper alignment and mounting of the turbocharger
- Check for any signs of overheating or thermal damage
- Verify proper function of the turbocharger's control and protection systems
Service intervals
| routine_maintenance | every 2000-4000 hours |
| major_overhaul | every 40,000-60,000 hours |
| bearing_replacement | every 20,000-30,000 hours |
Typical wear limits
| compressor_wheel | 10-15% of original blade height |
| turbine_blade | 5-10% of original blade height |
| bearings | 0.1-0.2 mm of radial clearance |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Compressor and turbine wheels
- Bearings and bearing housings
- Seals and gaskets
- Control system sensors and components
- Lubrication system components
- Diffuser and nozzle rings
- Rotor and shaft components
Safety
- High-temperature exhaust gases and potential fire hazards
- Rotating machinery and potential entanglement hazards
- High-pressure oil systems and potential leakage or spray hazards
- Electrical control systems and potential shock hazards
Class survey
The class surveyor will typically check the turbocharger's performance, vibration levels, and control system function, as well as verify that all maintenance and repair records are up-to-date and compliant with class regulations.
Components & Design
Component data being added…
Technical Data
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