MaK VM46DF
The Caterpillar MaK VM46DF is a medium‑speed V‑type marine main engine that delivers up to 900 kW per cylinder and can run on LNG, HFO or MGO via a dual‑fuel common‑rail system.
Engine Specifications
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Verify functional relief valve systems on fuel gas manifolds and exhaust; check valve set pressure calibration annually
Inspect crankshaft bearing thermoelectric voltage via Caterpillar Bearing Condition Monitoring System; examine bearing shells for lead precipitation and surface wear patterns
Measure cylinder liner wear with inside micrometer; inspect piston ring grooves for cracks; perform borescope inspection of turbocharger turbine for blade erosion or damage
Test LNG regulator pressure response and heater thermostat setpoint; inspect heat exchanger for blockages; verify glycol system circulation and temperature control
Type-general inspection and maintenance points for this equipment category — not model-specific.
Suppliers & Spare Parts
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Maritime Network →Manuals
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datasheet
MaK M46DF Dual-Fuel (460mm bore) — DatenblattCaterpillar / MaK
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project_guide
MaK M46DF Dual-Fuel (460mm bore) — Project Guide / ManualCaterpillar / MaK