Dripless shaft seal?

[jhance]

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?

[Comodave]

What brand is it? Some have a recommended change at 6 ot 7 years. Need to check manufacturer’s specs.

[BayBum]

"Volvo manual says "replace propeller shaft seal" at 500 hours"

I believe the manual is talking about the shaft seal on the back of the transmission where the prop shaft flange bolts to the prop shaft.

Greg

[Helmsman]

Originally Posted by jhance

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?

I had Tides Marine shaft seals on a previous 2006 boat. One started leaking in 2018. I replaced both of them. The recommended interval at that time for those shaft seals was six years for Tides Marine.

[rwidman]

Mine started leaking at about 20 years and 5K hours.