What We Do
Complete Inboard, Outboard & Mobile Boat Repair.
Blackwater Marine provides expert inboard & outboard diagnostics, dual battery & electrical troubleshooting, mobile dockside service, valve adjustments, lower unit gearcase rebuilds, and scheduled 100-hour maintenance in Sebastian, Vero Beach, and Indian River County. Call 772-501-9844 to speak with JT.
Inboard & Outboard Diagnostics & Engine Repair
Comprehensive diagnostic testing, mechanical overhauls, and tune-ups for inboards and outboards — Mercury, Yamaha, Honda, Suzuki, MerCruiser, and Volvo Penta.
JT takes the time to properly assess every issue from root cause up, ensuring jobs are done right the first time without unnecessary parts.
Mobile Marine & Dockside Service
On-site troubleshooting, ramp callouts, and dockside repairs throughout Sebastian, Vero Beach, and Indian River County. Weekend availability when you're stuck.
Save the trailering hassle — JT comes directly to your home, dock, slip, or marina fully equipped with diagnostic tools and parts.
Marine Electrical & Dual Battery Systems
Complete marine electrical troubleshooting, battery bank isolation, port/starboard drain diagnostics, GFI switch wiring, chargers, and switch panels.
Meticulous electrical problem-solving so you never suffer parasitic battery drains, failed starts, or mysterious shorts on the water.
Powerhead, Valve Train & Engine Rebuilds
Deep mechanical repairs including valve adjustments, intake/carburetor service, cylinder head work, cooling passages, and complete engine swaps.
Precision craftsmanship with Snap-on professional marine tooling, careful torque specs, and thorough sea-testing.
Lower Unit, Gearcase & Water Pump Service
Lower unit reseals, gearcase rebuilds, water pump impeller replacement, prop shaft servicing, and midsection maintenance.
Prevent catastrophic gearcase blowouts and overheating with thorough inspection, pressure testing, and factory-spec fluid flushes.
100-Hour Service, Tune-Ups & Inspections
Scheduled 100-hour and annual services, fluid and filter changes, spark plugs, fuel system flushes, and pre-purchase vessel assessments.
Keep your vessel dependable season after season with transparent pricing, honest reporting, and clear communication.
Need Diagnostics, Electrical Repair, or Dockside Service?
Call JT at Blackwater Marine. Whether you have battery drain issues, engine performance problems, or need weekend emergency service at your slip or ramp, we respond quickly with honest, high-quality work.