Keep the engine starting every weekend
Most engine trouble on a lake boat does not start with a breakdown. It starts with a part that wears out quietly: an impeller losing its vanes, a thermostat sticking, oil that should have been changed a season ago. Routine maintenance catches those parts before they leave you drifting in a cove.
Our engine work covers diagnostics when something feels off, oil and filter changes, raw-water impellers, thermostats and gaskets, generator service, and the practical repairs that come up along the way.
Signs your engine needs attention
- Overheat alarm or rising temperature. Often a worn impeller, a blocked intake or a stuck thermostat.
- Weak stream from the tell-tale. On engines that have one, a weak or missing stream can mean the cooling system is not moving enough water.
- Hard starting or rough idle. Fuel, ignition or air problems that get worse with time.
- Loss of power. The boat will not get on plane or tops out lower than it used to.
- New noises, smells or smoke. Anything that was not there last trip is worth a look.
If you see one of these, shut down if it is safe to do so and call us before running the engine hard again.
Impellers and cooling
The raw-water impeller is a small rubber part that pulls lake water through the engine to keep it cool. It wears every time the engine runs, and it fails faster if it ever runs dry. When the vanes crack or break off, cooling drops, and pieces can lodge further down the system. Check your engine's manual for the replacement interval, and replace it sooner if the boat has overheated or sat for a long time.
While the cooling system is open we look at the thermostat, housing and gaskets too, since a stuck thermostat causes many of the same symptoms.
Diagnostics before parts
We would rather find the cause than swap parts until the problem goes away. That means asking what happened and when, checking the obvious things first, then working through fuel, ignition, cooling and charging until the problem is found. You will hear what we found and what we recommend before the work goes ahead.
At your dock or in our shop
Plenty of routine engine work, like oil changes and many impeller jobs, can often be done where the boat sits through our mobile boat service. Bigger repairs, or jobs that need the boat out of the water, come to our shop at 6516 Lanier Islands Parkway in Buford, and we can help with boat transport if needed. If the engine is a sterndrive, the drive itself is covered on our sterndrive and outdrive repair page.
Inboards, sterndrives and generators
Lake boats around Lanier run a mix of power: sterndrives on bowriders and cruisers, inboards on wake and ski boats, and generators on larger boats with cabins. The basics of good engine care are the same across all of them: clean oil, a healthy cooling system, good fuel and a strong battery. The details differ, which is why we ask for the make, model and engine when you call.
Engine repair around the lake
We work on engines for boaters on Lake Lanier and in the towns around it. Owners near the shop can read about boat engine repair in Buford. We also serve boaters in Flowery Branch and Sugar Hill, along with Gainesville and Cumming.
Boaters who trailer up from Suwanee, Alpharetta, Atlanta or down from Dahlonega can bring the boat to the shop. Before the cold sets in, ask about winterization for the engine and water systems. Questions? Contact us.