HomeLower units & props
Lower units & props
Milky gear oil, a whine under load, a prop that spun a hub on the sandbar. The lower unit is where the water and the sand get in — we reseal, regear and repair it properly.
(251) 000-0000What we do
Seals, gears, pumps and props
A lower unit that's caught water will keep running right up until the day it doesn't. Pressure and vacuum testing tells us where it's getting in; then it's seals, bearings or gears, depending on how long it's been going.
- Pressure and vacuum testing, gear oil analysis
- Prop shaft, drive shaft and shift shaft seals
- Water pump and impeller replacement
- Gear sets, bearings, shimming and backlash
- Prop hub kits, prop repair, and the right pitch for your boat
Good to know
Signs it's time
Milky or gray gear oil
Water is getting past a seal. Caught early it's a reseal; ignored, it's bearings and gears.
Whine or clunk in gear
Worn gears or bearings, or a shift problem. Stop running it and call.
Weak tell-tale stream
The water pump is on its way out. Impellers are cheap; overheated powerheads are not.
Questions
Before you call
Rebuild or replace the lower unit?
Depends on what's worn. We'll price both and tell you which one makes sense for the age of the motor.
Can you match a prop to my boat?
Yes. Bring the boat, the current prop and how it runs now — we'll get the pitch right so it holds RPM under load.
How often should the water pump be changed?
Most makers say every two to three years, sooner if you run shallow or sandy water a lot.
Get a quote in a minute
Name, number, boat and the problem. On a real site it lands on the owner's phone as a text.