The five warning signs that your boat propeller may need repair are: Visible Damage: Check for nicks, scratches, or bent blades. Even minor damage can impact performance and should be addressed quickly. Increased Vibration or Noise: If you notice unusual vibrations or noise while boating, this often indicates a damaged or unbalanced propeller. Higher Fuel Consumption: A sudden increase in fuel usage suggests the engine may be working harder to compensate for a propeller issue. Handling Difficult