X82-B
The WinGD X82‑B is a large‑bore, low‑speed two‑stroke marine main engine (820 mm bore) delivering high power at 58–84 rpm with multi‑fuel capability (HFO, MDO, MGO, VLSFO and dual‑fuel LNG variants).
Engine Specifications
Inspector Detail
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Designation decoded
X stands for WinGD Generation X, 82 for 820 mm bore, B for compact design.
Background
The WinGD X82-B is a large two-stroke slow-speed engine with 820 mm bore for VLCCs and large container vessels. Competes with the MAN S80ME-C (800 mm). The X82 is among WinGD's larger engines and is mainly built by Chinese and Korean licensed builders.
Calculated metrics
Inspector checklist
- Cylinder liners: 820 mm bore — ultrasonic wall thickness measurement at docking, scavenge port inspection every 4,000 h
- Piston rings: Long ring circumferences at 820 mm, WinGD configuration
- Crosshead bearings: High piston mass, BWMS monitoring, temperature trend
- Common rail: Rail pressure at high throughput, high-pressure pumps, redundancy
- W.I.S.E.: Diagnostic data, software
- Injection valves: Nozzle condition at high injection quantities
- Exhaust valve: Hydraulic actuation, large valve masses
- Fine filter: High throughput at 820 mm — catfines protection critical
- Purifier redundancy and capacity
- Fuel preheating
- Stuffing boxes: Large piston rod, drainage
- Exhaust valve: Valve seat, rotation — large valve masses
- Scavenge air receiver: Drainage, enormous volume
- Crankshaft deflection: Regular measurement at 820 mm, various draughts
- Main bearings: Bearing clearances, oil temperatures
- Engine seating: Foundation chocks
Logbook reference values
| Parameter | Expected | Deviation means |
|---|---|---|
| Exhaust gas temperature after cylinder | 330-405°C at MCR | >25°C spread → injection problem |
| Common-rail pressure | 800-1000 bar | Drop → pump or rail |
| Pmax per cylinder | Per shop test ±3 bar | Spread >5 bar |
| Scavenge air pressure | 3.0-3.8 bar abs at MCR | Too low → turbocharger |
| Crankshaft deflection | Per WinGD X82 | Exceedance → bedplate or main bearings |
Common Failure Modes
Expert tips
- 💡 820 mm is WinGD-specific (MAN has 800 mm) — account for the bore difference when comparing performance
- 💡 For large engines: WinGD common-rail high-pressure pumps are the most critical component — check redundancy and spare parts availability
- 💡 Thermal inertia at 820 mm: Consistently observe warm-up times, no rapid load changes with a cold engine
Related components
Classification & regulatory
IMO Tier II. Tier III with SCR/EGR. EEDI Phase 2/3.
Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Type-general inspection and maintenance points for this equipment category — not model-specific.
Service & Maintenance
Large-bore WinGD PMS relies on drain-oil analysis, scavenge inspections and performance monitoring. Major overhauls commonly aligned with docking windows.
Suppliers & Spare Parts
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Manuals
- datasheet
- project_guide