Propeller efficiency is critical for the smooth operation of all boats. If the propeller is corroded, rough, bent or has surface damage, its efficiency is dramatically reduced. Leisure Boating sources the top propeller care tips to keep your motor running at its best.
It is imperative to carry a spare propeller to use in case of emergencies. At the very least you will be able to make it back to shore and not be stranded. The other benefit of having a spare propeller is that when the current propeller on the boat needs repair (it’s bound to happen), you have a replacement at hand.
Don’t let a damaged prop get in the way of your boating activities, carry a spare.
Don’t run your boat for long periods of time with a damaged propeller. It will have a detrimental effect on the motor or stern gear. It can also damage your propeller further by causing cavitation burns or increase the likelihood of bush failure.
Indicators that your propeller is damaged are a loss of speed, cavitation, excessive vibration and poor fuel economy.
When fitting your propeller, use a good quality, marine grade waterproof grease to coat the shaft. This will make the removal of the propeller much easier when repairs are required.
Ensure that your vessel is fitted with an anode as this is important for reducing the propeller and stern drive from electrolysis and corrosion. Anode selection is based on the size of the boat and the types of water (salt, fresh or brackish) it will be predominantly used in.
Zinc anodes are typically used for salt water and magnesium anodes for freshwater.