REFIT SYSTEM · ENGINE
Auxiliary propulsion is a safety system.
The engine must start, cool, charge and deliver controlled propulsion after long periods of light use, poor weather or restricted manoeuvring space.
MUST BE RIGHT
Cooling, fuel, exhaust and service access.
Reliability depends on complete supporting systems, not only on the engine block.
Cooling and exhaust
Seawater intake, strainer, pump, heat exchanger, injection point and exhaust route must remain observable and serviceable.
Fuel
Tanks, valves, filtration, return paths and emergency supply are arranged for clean changeover and fault isolation.
Mechanical installation
Mounts, shaft line, controls, charging and access must support routine service and emergency intervention.
SENSIBLE LATER
Noise reduction and monitoring after reliability is proven.
Additional sensors and acoustic treatment are useful only when they preserve ventilation, inspection access and manual fault finding.
| Decision lens | What we check |
|---|---|
| Reliability | Established engine, conventional supporting systems and usable emergency arrangements. |
| Maintainability | Access to filters, belts, impeller, heat exchanger, mounts and shaft seal. |
| Consumption | Fuel, charging efficiency, cooling flow and service consumables. |
| Total cost | Preventive service, spares, specialist work and future overhaul. |