Reliable mechanical systems are the backbone of safe, comfortable cruising. Our engineers bring deep expertise in catamaran propulsion, steering, and hydraulic systems – gained through years of building and commissioning vessels at Sunreef Yachts. We diagnose and resolve mechanical issues efficiently, wherever you are in the world.
Engine Repair & Overhaul
Whether you're dealing with a minor oil leak or a complete engine failure, our team has the diagnostic expertise and hands-on experience to get your engines running reliably again. We work with all major marine diesel engine brands commonly found in catamarans.
- John Deere – Complete service and overhaul for the John Deere marine range
- Volvo Penta – D-series diagnostics, repair, and parts replacement
- MAN – Servicing and overhaul for MAN marine diesel engines
- Yanmar – Full service capabilities for Yanmar sail drive and shaft drive units
- Comprehensive engine diagnostics and fault code analysis
- Cylinder head reconditioning and valve adjustment
- Injector testing, cleaning, and replacement
- Cooling system flush, thermostat, and impeller replacement
- Oil system service including heat exchangers and filters
- Engine mount inspection and replacement
- Complete engine removal and reinstallation when required
Steering System Repairs
Precise, responsive steering is critical for safe catamaran handling. We service and repair all types of steering systems found on modern catamarans, from cable-operated to fully hydraulic setups.
- Steering cable inspection, adjustment, and replacement
- Hydraulic steering cylinder rebuild and seal replacement
- Rudder bearing inspection and replacement
- Autopilot drive unit servicing and calibration
- Emergency steering system installation and testing
- Full system alignment and play elimination
Hydraulic Systems
Catamarans rely on hydraulic systems for everything from water management to sail handling. We service the complete range of onboard hydraulic and fluid systems.
- Watermaker servicing, membrane replacement, and commissioning
- Pressure pump repair and replacement
- Hot water system diagnostics and heater element replacement
- Complete freshwater system sanitization and de-scaling
- Holding tank inspection, repair, and replacement
- Macerator pump servicing and replacement
- Y-valve and through-hull fitting inspection
- System deodorization and flush treatments
Fuel Systems
Contaminated fuel and degraded fuel system components are among the most common causes of engine problems in cruising catamarans. We provide thorough fuel system maintenance and repair services.
- Fuel tank cleaning and inspection
- Fuel polishing and water separation
- Fuel line replacement and fitting upgrades
- Primary and secondary fuel filter replacement
- Fuel transfer pump repair and installation
- Fuel system bleeding and priming
Shaft Line Alignment
Proper shaft alignment is essential for engine longevity, efficient propulsion, and minimizing vibration. Misalignment can cause premature bearing wear, seal failure, and excessive fuel consumption.
- Laser shaft alignment using precision measuring equipment
- Cutlass bearing inspection and replacement
- Propeller shaft seal (PSS / lip seal) replacement
- Flexible coupling inspection and replacement
- Propeller inspection, repair, and balancing
Bearings & Pumps
We carry out precision replacement of all types of marine bearings and pumps, ensuring smooth, quiet operation across all mechanical systems.
- Stern tube and rudder bearing replacement
- Bilge pump inspection, repair, and upgrade
- Raw water and coolant pump rebuild
- Transmission and gearbox bearing replacement
- Hydraulic pump servicing for windlasses and thrusters