Describe the symptom under normal operation
State whether the concern is starting, charging, overheating, low power, unusual smoke, leaks, vibration, alarms, or another observed condition. Include when it started and whether recent maintenance or fuel, cooling, or electrical work preceded it. Do not run an unsafe engine merely to reproduce a fault.
Identify the engine and related equipment
Provide manufacturer, model, serial where available, inboard or outboard configuration, and the affected side on multi-engine vessels. Existing fault codes, service reports, and maintenance history can help, but do not enter restricted diagnostic menus solely for an inquiry.
Define the requested result
Separate diagnosis, preventive service, repair, replacement, alignment, and performance evaluation. If a sea trial or manufacturer-specific procedure may be required, the scope, qualified personnel, insurance, access, and authorization are confirmed before work is accepted.
Information to prepare
- Engine manufacturer, model, and serial
- Observed symptom, alarm, or fault code
- Recent service and operating context
- Port, berth, deadline, and authorized contact