Stern & Running Gear Maintenance
Stern & Running Gear Maintenance Services
The stern and running gear form the heart of a yacht’s propulsion system. Regular inspection and preventive maintenance of these components are essential for safety, efficiency, and performance. By addressing wear, corrosion, and alignment issues early, we help owners avoid costly breakdowns while extending the service life of critical underwater hardware.
Our Stern & Running Gear Maintenance Includes:
Propeller Inspection and Repair: We inspect propellers for pitting, cavitation erosion, and surface cracks. Using NDT crack detection and propeller pitch measurement tools, we restore balance, correct pitch deviations, and perform reconditioning or replacement as required.
Prop Shaft Assessment: Bent or damaged shafts are identified using dial indicators and laser alignment equipment. Where possible, shafts are straightened; otherwise, we manufacture and fit precision replacements. All work ensures correct shaft concentricity and coupling alignment to minimize vibration and wear.
Cutless Bearings and Stern Tube Seals: Worn or noisy bearings are replaced with marine-grade cutless bearings. Stern glands and mechanical seals are inspected for leakage, and stern tube lubrication systems are serviced or refilled to ensure watertight integrity.
Coupling and Bolt Tightening: Shaft couplings are checked for play and torque-tested to confirm secure connections. Any loose or corroded bolts are replaced with certified marine-grade fasteners to ensure efficient power transmission.
Gearbox and Drive Plate Maintenance: Gearboxes are inspected for oil level, lubrication quality, bearing wear, and seal integrity. Drive plates are examined for fatigue cracks and wear, preventing failures during operation.
Vibration Analysis and Noise Investigation: Using spectrum vibration analysis and sound level diagnostics, we identify the root causes of unusual noise or vibration. Corrective actions include alignment adjustments, bearing replacement, or propeller rebalancing.
Cathodic Protection: Sacrificial anodes are inspected and replaced as necessary. This protects shafts, propellers, and struts from galvanic corrosion and prolongs the lifespan of underwater running gear.
Why Choose Us for Your Maintenance Needs?
Expert Technicians: Our engineers bring decades of hands-on experience in propulsion systems, from small sailing yachts to large motor yachts.
Proactive Service: Annual service schedules include laser alignment, shaft log inspections, bearing checks, and seal servicing to catch issues before they escalate.
State-of-the-Art Tools and Techniques: We employ advanced methods such as ultrasonic crack detection, precision laser alignment, and digital vibration monitoring for maximum reliability and accuracy.
Customized Solutions: Every vessel is different. We develop tailored maintenance plans that reflect your boat’s operating conditions, usage profile, and cruising range.
With our stern and running gear services, you gain peace of mind knowing your propulsion system is operating at peak performance—quiet, smooth, and efficient for every voyage.
