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• 12:46, 29 July 2026 SwWikiAdminUser talk contribs created page Propeller Shaft Grooves (Created page with "'''Propeller Shaft Grooves'''<br> It is an issue that Gori propellers installed on a SD20 saildrive will form grooves over time which will result in sea water penetration. Periodic repositioning of the seals using shims allow longer life from the propeller shafts.<br><br> Methods to deal with groves on the propeller shaft: # Add/re-position spacers between the seals # Machine propeller shaft and add a 316SS sleeve to return to original size (35mm) # Replace propeller sh...")