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Wärtsilä

8LW32 Methanol

Wärtsilä 32 (W32 / W32GD) — Viertakt-Marinediesel, Bohrung 320 x Hub 400 mm, 720 and 750 RPM (50 Hz and 60 Hz) rpm, 3000-9300 kW (diesel); 2520-8400 kW (W32GD gas-diesel). Brennstoff: HFO (Heavy Fuel Oil), LFO (Light Fuel Oil), MDO (Marine Diesel Oil), ultra-low sulphur fuel; W32GD: natural gas/diesel (dual-fuel); methanol (W32 Methanol variant available from 2023). Status: In production (legacy platform continuously updated; introduced 1980s, 2500+ units sold since 1998). Verifiziert, Datenblatt verlinkt.

2560.0 kW
Power

Engine Specifications

8
Cylinders
320 mm
Bore
400 mm
Stroke
4-stroke
Stroke Type

Components & Design

Component data being added…

Technical Data

Displacement per cylinder 32.2 liters
Specific power output (inline) 580 kW/cylinder (at 750 RPM)
Specific power output (V-config) 500-420 kW/cylinder (W32GD: 405-420 kW/cyl)
Configuration 4-stroke, non-reversible, turbocharged, intercooled, direct fuel injection
Valves per cylinder 2 inlet + 2 exhaust
Cooling system Seawater and freshwater cooling; charge air cooling via cooler
Turbocharger Napier 357 (common); Wärtsilä turbocharger safety package available
Compliance IMO Tier II (MARPOL 73/78 Annex VI)
power kw 2560
rpm 750
fuel type Methanol/MDO (Dual-Fuel)
configuration L

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Common failures & inspection points

Injection pump fuel rack stickiness (HFO operation) - reported in power plants using HFO 380, affecting reliable fuel delivery
Exhaust valve seat wear and carbon deposits - standard maintenance item due to high exhaust temperatures; valve seats made from Ni-Cr super alloy (ASTM A560 60C
Camshaft gear backlash and timing gear pitting/spalling - wear surfaces require monitoring during major overhauls
Bearing shell installation alignment critical - tin-aluminium-on-chrome-iron tribological pairing; 110% overload limit for 1 hour in 12
Fuel injection nozzle clogging (dirt/debris, contaminated fuel) - HFO installations use oil-cooled nozzles; MDF uses non-cooled nozzles

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #124023 · ✓ still in production