Azimut 68

Common issues

• Fuel system contamination (algae, water ingress) leading to filter clogging and injector issues.
• Cooling system blockages (seawater side) from marine growth or debris, causing overheating.
• Corrosion of external components, electrical connections, and exhaust system due to saltwater exposure.
• Battery degradation and charging system failures (alternator, regulator) impacting starting and electronics.
• Vibration-induced loosening of fasteners, pipe clamps, and electrical terminals.
• Sensor malfunctions (temperature, pressure, level) leading to false alarms or engine protection shutdowns.
• Belt wear/slippage on alternator, raw water pump, or other driven accessories.
• Exhaust gas leaks due to manifold/riser corrosion or gasket failure.

Inspection checklist

• Visual check for fuel, oil, coolant, and exhaust leaks around the engine and associated systems.
• Verify fluid levels: engine oil, coolant, gearbox oil (if applicable), and fuel tank level.
• Inspect all belts for tension, cracks, and wear; check pulleys for alignment and bearing play.
• Examine raw water strainer for cleanliness and integrity; check seawater pump impeller condition (if accessible).
• Inspect exhaust system for corrosion, cracks, and secure mounting, especially risers and elbows.
• Check battery terminals for corrosion and tightness; verify battery voltage and charging system output.
• Listen for unusual noises (knocking, squealing, grinding) during startup and operation.
• Verify proper function of all engine alarms (low oil pressure, high temperature, low coolant, etc.) and emergency stop.
• Inspect electrical wiring and connections for chafing, corrosion, and secure fastening.
• Check engine mounts for signs of degradation, cracking, or excessive vibration.

Service intervals

Typical wear limits

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

• Complete set of fuel filters (primary and secondary)
• Engine oil filter(s)
• Raw water pump impeller kit (impeller, gasket, O-rings)
• Drive belts (alternator, raw water pump)
• Assorted fuses and relays for engine control unit (ECU) and electrical system
• Engine oil (minimum 5 liters)
• Coolant (pre-mixed, suitable for marine engines)
• Spare sensors (e.g., oil pressure, coolant temperature) if readily replaceable

Safety

• Fire hazard from fuel or oil leaks, especially in hot engine compartments. Ensure proper ventilation and fire suppression.
• Carbon monoxide (CO) poisoning risk from exhaust gas leaks. Verify exhaust system integrity and CO detector functionality.
• Entanglement with rotating machinery (belts, shafts) during operation. Maintain guards and ensure engine is secured when working nearby.
• Electrical shock hazard from exposed wiring or faulty components. Always disconnect batteries before electrical work.
• Hot surfaces (exhaust manifold, turbocharger) causing burns. Allow engine to cool before inspection or maintenance.

Class survey

The class surveyor will typically verify compliance with SOLAS/MARPOL regulations, inspect engine room cleanliness and fire safety systems, check operational logbooks, witness functional tests of safety devices (overspeed trip, low oil pressure shutdown, high temperature alarm), inspect fuel and exhaust systems for integrity, verify emergency stop functionality, and review maintenance records. A load test may be requested to confirm engine performance and stability under typical operating conditions.