Turbocharger · Turbochargers
The Mitsubishi MET‑SRC is a marine turbocharger that increases intake air pressure for 4‑stroke diesel engines, featuring an integrated turbine‑compressor design optimized for high efficiency and compact installation.
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What our service work and the manufacturer documentation say about keeping this model running.
Servicing per the manufacturer's manual and classification society requirements. Annual inspection at class survey. Stock spare parts as specified by the manufacturer.
| Daily/Weekly Checks | Visual inspection, noise/vibration monitoring, oil level check. |
|---|---|
| 2,000-4,000 hours | Compressor washing, visual inspection of compressor wheel and casing. |
| 4,000-8,000 hours | Turbine washing, visual inspection of turbine wheel and nozzle ring (if accessible). |
| 8,000-12,000 hours | Bearing inspection/replacement, oil seal replacement, full cleaning of compressor/turbine, inspection of nozzle ring and diffuser. |
| 16,000-24,000 hours | Major overhaul (full strip-down, rotor balancing, replacement of all bearings, seals, gaskets, detailed inspection of all components, crack detection). |
| Axial bearing clearance (new) | 0.10 - 0.15 mm |
|---|---|
| Axial bearing clearance (max allowable) | 0.25 - 0.35 mm (consult specific model manual) |
| Radial bearing clearance (new) | 0.05 - 0.10 mm |
| Radial bearing clearance (max allowable) | 0.15 - 0.20 mm (consult specific model manual) |
| Compressor/Turbine blade tip clearance | Manufacturer specific, typically 0.5 - 1.5 mm (check for rubbing marks) |
| Shaft runout | Max 0.02 - 0.03 mm (at specific points, consult manual) |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
During annual surveys, the surveyor typically checks external condition, signs of leaks (oil, gas), general cleanliness, and verifies logbook entries for maintenance and operational parameters. For intermediate or special surveys, internal inspection of the compressor and turbine sides (fouling, damage), bearing clearances, and verification of major overhaul records are often required. Compliance with manufacturer's service bulletins and any class-specific requirements for turbocharger safety devices (e.g., overspeed protection, though less common on mechanical units) will also be checked.
Estimated lifetime: 16,000 - 24,000 hours (before major overhaul, unit can last much longer with repeated overhauls)
Exact MET-SRC frame and engine matching are required for correct cartridge and bearing parts.
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