7 Reasons to Change Your Propeller

7 Reasons to Change Your Propeller

  1. Does your boat vibrate more than it used to?
    If left unchecked, unwanted vibration can do serious damage to your boat. There are many different causes of unwanted vibration, but issues with your propeller is one probable cause. Check to see if your propeller is fouled, has a bent or damaged blade, is unbalanced, or is not fitted properly onto the shaft.
  2. Is your boat slow to come onto plane?
    If your propeller has too much pitch, the engine will have a lousy "hole shot"—its ability to get on plane quickly—and will lug. This causes the engine to work hard at low speeds, which places a tremendous load on its parts and can cause various damages.
  3. Does your engine over-rev?
    If your propeller has too little pitch, the engine can rev past its red-line. This is like driving your car on the interstate in second gear and can also cause the engine damage. If your prop has the wrong amount of pitch, a prop shop can adjust it or recommend a new one.
  4. Did you run over a log, hit a sandbar or rock, etc.?
    It's easy for your propeller to come into contact with natural surfaces below the water. A dinged, bent, or chipped prop can seriously affect your boat's performance. It's also possible for collisions to cause internal damage to your prop which would not be visible to you. If you heard the hit it's likely that some type of damage occurred, and it's best to have your prop examined professionally.
  5. Is your boat using more fuel than usual?
    Your propeller has a significant impact on your boat's fuel efficiency. If you notice that you're having to fill up more frequently, it might be because your propeller is damaged. This is because a damaged prop makes your boat work a lot harder to perform, which uses up your fuel faster.
  6. Do you want to go faster?
    Loss of speed can be due to a damaged propeller, but it's also possible to increase your normal speed with a propeller upgrade. If you currently have an aluminum prop, upgrading to stainless steel can increase your speed by two to three knots. This is because stainless steel is stronger and can therefore be made thinner, which allows for more speed. Stainless steel also flexes less and keeps its shape at higher speeds.
  7. Is your propeller a bad fit for your boating lifestyle?
    Boat builders often install compromise propellers on their boats, because they aren't sure what the buyer plans to do on the water. Compromise propellers are standard props designed to fit a range of functions at moderate capacity, but a prop made for specific use could help your boat function at a much higher capacity. Upgrading to a prop that's specifically made for what you use your boat for can have a huge impact.