Main Engine 4-Stroke · Main Engines (4-Stroke)
The ABC 6DZC is a medium‑speed, six‑cylinder 4‑stroke marine diesel engine delivering 1 890 kW at 1 000 rpm, notable for its dual‑fuel (HFO/MDO/LNG) capability and European build quality.
| Fuel injector testing/overhaul | typically every 4000-6000 running hours, per the maker's manual |
|---|---|
| Turbocharger overhaul | typically every 10000-16000 running hours |
| Cylinder head/valve overhaul | typically every 8000-12000 running hours |
| Main/big-end bearing inspection | per the maker's schedule or condition-based, typically every 12000-20000 hours |
| Crankcase oil analysis | monthly |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Piston ring gap | typically 0.8-1.4 mm for this bore class - confirm against the engine's own manual |
|---|---|
| Cylinder liner bore wear | typically condemn around 0.3-0.5 mm per 100 mm bore diameter - confirm against the maker's limit table |
| Main bearing clearance | typically 0.15-0.35 mm depending on shell design - confirm against the maker's specification |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Medium-speed main engines of this size are typically under Continuous Machinery Survey or an approved planned maintenance scheme; class expects crankshaft deflection records, bearing clearance history and governor/overspeed trip test records to be current at survey.
Estimated lifetime: Top-end overhaul typically due around 12000-20000 hours; engines of this class commonly run well beyond 80000-100000 hours to major renewal with proper maintenance - confirm against the maker's TBO schedule for this model
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