Marine Engineering in Mallorca
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Our Most Popular Service
Specialists in outboard and inboard engines
At Heavy Seas, we provide a comprehensive marine engineering service in Mallorca, specialising in the diagnosis, maintenance, repair, and repowering of all types of marine engines.
We work with leisure boats, yachts, superyachts, tenders, and large vessels, delivering precise, fast, and tailored technical solutions for each project.
As official service providers for Mercury, Volvo Penta, and Yanmar in the Balearic Islands, we guarantee quality, access to genuine spare parts, and certified technicians for reliable engine performance.
Marine Engineering Services
Marine Engine Maintenance
Periodic Maintenance Services
- Oil and filter changes
- Fuel filter replacement
- Impeller and turbine replacement
- Cooling system inspection
- Electronic diagnostics
- Adjustments and calibration
- Electrical system inspection
- Belt replacement
- Spark plug replacement
- Injector inspection
- Circuit cleaning
- Anode replacement
- Performance and functionality testing
Marine Engine Repair
Common Repairs
- Leak repairs
- Overheating issues
- Electrical and electronic faults
- Injection problems
- Pump repairs
- Injection problems
- Gasket and seal replacement
- Cooling system repairs
- Transmission and sterndrive repairs
- Partial or full engine rebuilds
Our technical team works with advanced propulsion systems for yachts and large vessels, ensuring accurate diagnostics and efficient solutions.
Marine Engine Installation and Repowering
At Heavy Seas we develop complete engine installation and replacement projects to improve performance, efficiency, and reliability.
Installation and repower services
- New engine installation
- Complete repowering projects
- Electronic configuration
- Performance adjustments
- System integration
- Sea trials and commissioning
Specialists in Outboard Engines
Specialists in Outboard Engines
Specialists in Inboard Engines
Specialists in Inboard Engines
Marine Engineering and Repowering Projects
Marine Engineering and Repowering Projects
Official distributors
We are Official Dealers Supply and Service for: Volvo Penta, Mercury, Yanmar & Humphree
What are the advantages of an official service?
- Certified and specialised technicians
- Access to original spare parts
- Official electronic diagnostics
- Software and system updates
- Manufacturer warranty
- Repairs according to official technical specifications
- Increased reliability and engine lifespan
- Professional maintenance history
Other brands we work with
We also are highly experienced working with the following brands and parts supply for:
INBOARD BRANDS
- Caterpillar
- Cummins
- Iveco
- Volkswagen
- Marine
- Perkins
- FPT Iveco
OUTBOARD BRANDS
- Yamaha
- Evinrude
- Parsun
- Torqeedo
- Suzuki
- Honda
- Mariner
Frequently Asked Questions
FAQs about Marine Engineering
A marine engine should be inspected if you notice starting problems, overheating, unusual noise, smoke, vibration, loss of power or irregular fuel consumption. Regular inspections are also recommended before the high season or before long trips.
Yes. Our technicians can carry out onboard inspections and electronic diagnostics to identify mechanical, electrical or performance-related issues. After the assessment, we recommend the most suitable repair or maintenance solution.
In many cases, engine problems can be solved with targeted repairs or maintenance. Repowering may be recommended when the engine is unreliable, inefficient, outdated, difficult to repair or no longer suitable for the vessel’s use.
It is helpful to provide the engine brand, model, vessel type, location, and a description of the issue or service required. Photos, videos, error codes or maintenance history can also help our team assess the situation more efficiently.
Yes. Engine maintenance, repairs, repowering, diagnostics, system integration and sea trials can be planned as part of a wider refit or maintenance project. This allows the technical work to be coordinated efficiently and reduces vessel downtime.