![]() It may be more cost-effective to simply replace a damaged aluminum prop, but when a new stainless prop costs $400 to $700, the repair makes economic sense. Obviously with those bent blades the prop is not going to function properly and boat performance will suffer, but the damaged prop is also likely now unbalanced, which can cause vibration at high speed which can lead to more problems.Ī good propeller shop can restore a prop with pretty significant damage, often by welding new material onto the affected blades and then grinding and shaping the blades back to original geometry.Ī typical repair to an aluminum prop will cost $100 to $150, but expect to pay $200 to $400 to repair a stainless steel prop. If prop blades are bent or otherwise damaged, the prop should either be replaced or repaired. You can remove these burrs yourself with a mill bastard file. If you don’t see any obvious damage, carefully run your fingers along the leading edge of the prop blades and check for burring, which can occur if the prop is run through sand. Inspect for bent blades or nicks in the leading edge. With the transmission in neutral you’ll be able to turn the prop (be safe: always remove the engine kill switch before inspecting the propeller). Get in the habit of inspecting your propeller during the boating season.
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