Engine Repair & Overhaul
Outboards · Inboards · Sterndrives · Marine Diesel · Mobile
When Your Engine Needs More Than a Tune-Up
Outboard running rough? Overheating? Losing compression? These aren't problems you ignore in the Keys — saltwater punishes deferred maintenance fast. 3 Marine Mobile KW brings the diagnostic tools and technical knowledge to find the real problem, not just the symptom.
We perform engine work on outboards, gas inboards, sterndrives, and marine diesels. From a cylinder head gasket on a Four Stroke outboard to a full powerhead rebuild, we document the work, use quality parts, and back what we do.
Engine Services We Perform
Diagnostics & Testing
- Compression testing (wet & dry)
- Leak-down testing per cylinder
- Electronic fault code retrieval
- Oil analysis & inspection
- Pre-purchase inspection
Top-End Engine Work
- Cylinder head gasket replacement
- Head removal, inspect & reseal
- Valve train service
- Carburetor rebuild & jet kit
- Fuel injector service
Cooling System
- Water pump (impeller) replacement
- Thermostat & housing replacement
- Cooling passage flush & de-scale
- Overheating root cause diagnosis
- Raw water pump rebuild
Powerhead Overhaul & Diesel
- Full powerhead removal & rebuild
- Piston, ring & bearing replacement
- Marine diesel service & injector work
- Diesel raw water pump rebuild
- Heat exchanger cleaning & inspect
Need service today?
Certified mobile marine service throughout the Keys — we come to your dock.