Expert boat engine repair, diagnostics, and marine engineering at Port Credit Harbour Marina. Serving Mississauga, Oakville & Lake Ontario boaters since 1986.
📞 Call Dave — (905) 299-6529 View All ServicesFull-service marine mechanical for all makes and models.
Inboard, outboard, and sterndrive engines. Full diagnostics, repairs, and complete rebuilds done right.
Engine repair detailsProfessional marine engineering services. Complex mechanical problems diagnosed and solved with precision.
Marine engineering servicesPowerboats, sailboats, pontoons, fishing boats — if it floats and has an engine, Dave can fix it.
See all marine servicesPre-purchase inspections, seasonal tune-ups, and thorough diagnostics before issues become expensive.
Diagnostics detailsProper end-of-season winterization and spring commissioning to protect your investment year-round.
Winterization detailsMarine electrical troubleshooting, fuel system repairs, and bilge pump servicing.
Marine electrical details Fuel system detailsDave Rudicil is a seasoned marine mechanic and engineer based at Port Credit Harbour Marina on Lake Ontario. Licensed since 1986 and with decades of hands-on experience working on everything from weekend runabouts to serious performance boats, Dave brings a level of expertise and honesty that's hard to find.
No upselling. No runaround. Just straight talk and solid work — exactly what boat owners deserve.
Available for repairs, diagnostics, and consultations. Call or text directly to get on the schedule.
Ready to get your boat sorted? Reach out directly.
Port Credit Harbour Marina
Mississauga, ON
For the fastest answer, call or text Dave directly with your boat make, engine, location, and what it is doing.
July 11, 2026 service note
Blue Water Mechanical is prioritizing Port Credit and Lake Ontario boaters who need diagnostics, cooling-system checks, fuel-system issues, battery and bilge pump problems, lower-unit concerns, and late-season maintenance before small symptoms become dockside downtime.
Good for boats showing temperature creep, weak telltale flow, alarm history, or intermittent overheating after longer July runs.
Book diagnosis for hard starts, bogging, stale fuel symptoms, battery draw, or no-start conditions before weekend use.
Have Dave review belts, hoses, fluids, lower-unit signs, bilge operation, and visible safety concerns before longer Lake Ontario trips.
Blue Water Mechanical repairs marine engines, outboards, inboards, sterndrives, transmissions, electrical systems, fuel systems, cooling systems, lower units, bilge pumps, and seasonal commissioning issues.
Blue Water Mechanical is based at Port Credit Harbour Marina in Mississauga, Ontario and serves boaters around Port Credit, Lake Ontario, Mississauga, Oakville, Etobicoke, and Toronto.
Boat owners can call or text Dave Rudicil directly at 905-299-6529 with the boat make, engine, location, and symptoms.
View marine repair services or read the marine mechanic FAQ.
Updated June 25, 2026: after the first few weekends on Lake Ontario, Blue Water Mechanical is prioritizing no-start complaints, weak batteries, bilge pump problems, cooling-flow issues, stale fuel symptoms, lower-unit checks, and quick diagnostics before small issues turn into dockside breakdowns.
If the boat launched but still feels off, book a short diagnostic visit at Port Credit Harbour Marina before the next long run.
Blue Water Mechanical is prioritizing mid-season breakdown prevention: overheating complaints, weak cooling flow, hard starts after sitting, low battery voltage, bilge pump issues, fuel delivery problems, and lower-unit checks before longer Lake Ontario runs.
For the fastest diagnosis, note the engine make, recent symptoms, alarm history, fuel age, battery age, and whether the issue happens at idle, under load, or after warm-up. That context helps Dave narrow the first inspection instead of burning time at the dock.
Cooling system repair · Fuel system repair · Battery and bilge pump repair · Lower-unit repair