Nimbus 350 Coupe

Common issues

• Sterndrive/outdrive bellows and gimbal bearing wear, risking water ingress if unnoticed
• Osmotic blistering of the GRP hull below the waterline on older laminate
• Corrosion/electrolysis of underwater metals (propeller, drive leg, through-hull fittings) from worn anodes or stray current
• Raw-water pump impeller wear reducing engine cooling capacity
• Fuel system diaphragm/filter fouling from ethanol-blended or stale fuel during periods of low use
• UV degradation of canvas, upholstery and exterior trim

Inspection checklist

• Check sacrificial anodes on the drive leg/shaft for wastage
• Inspect sterndrive bellows and boots for cracking, if a sterndrive is fitted
• Check bilge pump and bilge high-level alarm operation
• Inspect raw-water strainer and impeller condition
• Check steering and throttle/shift cable operation and free movement
• Inspect the hull for blistering, gelcoat damage or through-hull fitting deterioration
• Check fire extinguisher and safety equipment expiry dates
• Verify battery condition and charging system output

Service intervals

Critical spares

• Raw-water pump impeller
• Sacrificial anodes
• Sterndrive bellows/boot kit, if applicable
• Fuel filters/water separator elements
• Drive belts

Safety

• Fuel system leaks in an enclosed engine compartment are an explosion risk - run the bilge blower before starting
• Carbon monoxide can accumulate near swim platforms and generator exhausts
• Battery gassing during charging near ignition sources

Class survey

Cataloguing note: the underlying product is a Nimbus 350 Coupe, a CE/RCD-certified recreational motor yacht (DNV RCD certificate RCD-B-264), not a SOLAS cargo or passenger vessel - it is not subject to classification society continuous machinery survey, and the site's fire-fighting/marine-equipment category structure does not fit it well. The content above addresses the actual product (a recreational day-cruiser) rather than SOLAS-regulated shipboard machinery; routine maintenance follows the engine/drive manufacturer's owner's manual rather than a class PMS regime.