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A 30-year-old, three-blade Max-Prop classic from the 38-ft sailboat Antidote undergoes professional refurbishment at the PYI facility in the Pacific Northwest.1:09 The propeller, which had not been serviced since the early 1990s, showed wear on the internal cone gear teeth, resulting in rotational play.6:50 Technicians at PYI replace the cone gear, spacer, and screw kit to eliminate the play and restore the unit to factory specifications.12:02 The refurbishment process involves manual machining on a lathe to ensure precise fitment for the specific wear patterns of the individual propeller.20:35 PYI recommends annual maintenance using a calcium-based NLGI 1 grease to prevent premature wear and corrosion.7:35 The total cost for parts for this 20-inch diameter propeller was $426, with a typical turnaround time of three to four weeks.23:24 The shop also modified the original shaft nut by adding three slots to simplify cotter pin alignment during reinstallation.22:58 Regular greasing and professional inspection every 10 to 15 years can extend the service life of these feathering propellers indefinitely.18:53

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