Dripless shaft seal?
Is there a recommended interval to change the shaft seal? 2003 Camano, 1600 hours. Volvo manual says "replace propeller shaft seal" at 500 hours. I don't believe ours has ever been done, but not sure it needs to be done every 500 hours (at least I don't know anyone who does that). It's not dripping and performing flawlessly so hesitant to do anything, but I will have the boat out of the water this winter so maybe replace as a preventative measure?