Alfredo Contaldovideo
Propeller Shaft Bushing Replacement - 3-Blade Folding Propeller and Zincs 🛠 Onboard Work ⛵
16 May 2026 · 9 min · 2K views
Hands install folding propeller under sailboat at marina
What this video covers
Alfredo Contaldo replaces a worn propeller shaft bushing and upgrades from a fixed three-blade propeller to a folding three-blade model.Watch To remove the old propeller, he uses a mechanical puller and lubricant.0:55 When the shaft bushing shows several millimeters of play, he removes the locking set screws and drives the bushing out toward the propeller end using a rubber mallet and lubricant.2:13 He cuts the old bushing with an angle grinder to facilitate removal, taking care not to damage the shaft.2:04 The new bushing is inserted from the stern, lubricated with soapy water, and secured by drilling new pilot holes for the locking set screws.2:30 After installing the folding propeller with a torque wrench, he replaces the sacrificial zinc anodes on the shaft and the propeller hub.4:02 He notes that proper electrical contact is essential for the anodes to prevent galvanic corrosion on the shaft.5:18 Annual replacement of these anodes is mandatory to ensure the propeller and shaft remain protected.6:48
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