Marine Engine Repair
Professional boat engine repair designed to diagnose problems quickly and get you back on the water.
Ethan, the owner and mechanic, answers the phone · Open 7 days a week
- Same / next day availability
- On-site & marina service
Marine Engine Repair at Your Dock
Engine problems can quickly turn a great day on the water into frustration, downtime, and costly damage. At EG Marine Services, we provide dependable engine repair for boat owners who need fast diagnostics, experienced technicians, and reliable repairs.
Whether you’re dealing with starting issues, overheating, power loss, excessive smoke, warning alarms, or complete engine failure, our team is equipped to diagnose and repair a wide range of marine engine problems.
Trusted by boat owners across South Florida
Read our Google reviewsNo call center. No front desk.
When You Call, the Owner Picks Up
Every call goes straight to Ethan, the owner of EG Marine Services and the mechanic who does the work. There’s no receptionist taking a message and no waiting on a callback from someone who’s never seen your boat.
Tell him what’s going on: the alarm on the display, the noise at idle, the engine that won’t turn over. Ethan knows Yamaha, Suzuki, Mercury, and the rest of what runs in South Florida inside and out, so you’ll usually get a straight answer on the first call, whether that’s something you can check yourself or a visit to your dock.
- Straight answers, not a script
- Diagnostic questions answered on the phone
- Honest advice, even when the fix is simple
- The person you talk to is the one who shows up
Ethan
Marine mechanic
Describe what the boat is doing and get a real answer from the mechanic, not a message taker.
Call Ethan: 786-351-5363Open 7 days a week
Engine down? Call Ethan and tell him what happened. He’ll tell you the likely next step.
Call 786-351-5363Common Signs Your Boat Engine Needs Repair
Marine engines often show warning signs before a major breakdown. Addressing them early helps prevent more extensive and expensive repairs later.
- Difficulty starting the engine
- Loss of power or poor acceleration
- Overheating issues
- Excessive vibration or unusual noises
- Increased fuel consumption
- Warning alarms or fault codes
- Smoke from the exhaust
- Oil, fuel, or coolant leaks
- Rough idling or stalling
- Electrical or charging problems
Our Marine Engine Repair Process
We keep the repair process organized, transparent, and focused on minimizing downtime.
- 01
Inspection & Diagnostics
A full evaluation of your engine and related systems to identify the source of the issue.
- 02
Troubleshooting & Recommendations
We explain the problem clearly and recommend repairs based on your engine’s condition and performance needs.
- 03
Professional Repairs
Repairs are completed using quality parts, proper procedures, and experienced marine repair techniques.
- 04
Testing & Verification
We test and verify proper engine operation, performance, and reliability.
Marine Engine Repair Services We Provide
Our marine engine repair services cover a wide range of systems and components.
Inboard Engine Repair
Inboard engines: raw water and circulation pumps, exhaust manifolds and risers, sensors, starters, and fuel systems.
Engine Diagnostics
Advanced troubleshooting and fault-code analysis to identify engine and performance issues quickly.
Fuel System Repairs
Inspection and repair of fuel pumps, injectors, fuel lines, filters, and related components.
Cooling System Repairs
Diagnosis and repair of overheating, water pumps, thermostats, heat exchangers, and cooling components.
Electrical & Charging System Repairs
Battery charging systems, alternators, starters, wiring issues, and electrical troubleshooting.
Ignition & Starting System Repairs
Repair and replacement of ignition components, starter systems, switches, and controls.
Oil Leak & Fluid System Repairs
Identification and repair of oil leaks, fluid contamination, and lubrication-related issues.
Engine Overheating Repairs
Correction of cooling restrictions, circulation issues, and damaged cooling components.
Preventative Maintenance & Service
Routine service designed to reduce breakdowns and extend engine life.
Why Choose EG Marine for Engine Repair
The right marine engine repair team protects your investment and helps you avoid recurring problems.
Experienced Marine Technicians
Trained to diagnose and repair a wide variety of marine engine systems and performance issues.
Fast & Reliable Service
We work efficiently to minimize downtime and get your boat back on the water quickly.
Advanced Diagnostics
Modern diagnostic tools and troubleshooting methods that identify problems accurately.
Mobile Service Capability
Dockside and marina repair services are available for many types of repairs and inspections.
Clear Communication
Honest recommendations, repair updates, and transparent communication throughout the process.
From the Job Log
New starter motor for a Mercury Racing outboard 
Fouled spark plug from a boat engine
Schedule Your Engine Repair Service Today
Don’t ignore engine problems that can lead to larger repairs and unexpected downtime.
Call Ethan directly786-351-5363Open 7 days a week · No call center or front desk, you talk to the person doing the work
- Fast diagnostics and troubleshooting
- Experienced marine repair technicians
- On-site and marina service available
- Reliable repairs and preventative maintenance
Prefer a free quote?
Leave your number and we’ll call you back.
Marine Engine Repair FAQs
What types of boat engines do you repair?
Outboards, sterndrives, and inboards. That includes Yamaha, Mercury, Suzuki, and Honda outboards, and MerCruiser and Volvo Penta sterndrives and inboards.
How much does marine engine repair cost?
It depends on what failed. Many no-starts and running problems turn out to be a fuel, electrical, or sensor issue that’s quick to fix. Bigger mechanical repairs cost more. Diagnosis comes first, and you get a quote before any repair starts.
Do you offer mobile marine engine repair?
Yes. We provide mobile engine repair at marinas, docks, and waterfront properties whenever possible. Many diagnostics, inspections, and repairs can be completed on-site without transporting the boat.
How do I know if my engine problem is serious?
Warning signs like overheating, excessive smoke, unusual noises, fluid leaks, difficulty starting, or loss of power should be inspected as soon as possible. Continuing to operate the engine may cause additional damage and more expensive repairs.
Can you diagnose engine warning alarms and fault codes?
Yes. We use diagnostic equipment and troubleshooting procedures to identify fault codes, sensor failures, electrical problems, and performance-related engine issues.
How long does an engine repair take?
Repair timelines depend on the severity of the issue, parts availability, and the type of engine. Some repairs can be completed quickly, while larger mechanical repairs take more time. We’ll provide a clear estimate after inspection and diagnostics.
Do you provide preventative maintenance services?
Yes. Preventative maintenance is one of the best ways to reduce breakdowns, improve engine reliability, and extend the lifespan of your marine engine.
Areas We Serve
Our mobile marine mechanics travel to marinas, private docks, and waterfront homes from Boca Raton to Islamorada. Nearby but not listed? Reach out to confirm availability in your area.