Seems like every 50 hours or less I start getting water in the lwr unit oil. Each time I get it fixed they say it is the upper shaft seals are leaking. Seal part numbers 329922 and 329923 are changed along with the impeller. I'm wondering if something is causing these seals to fail and if that is true I need to fix the real problem not just the symptom. How long do these seals last normally? How many hours before I should change the lwr unit oil normally? and does anyone have any idea of what esle I should have the tech. check when I bring the boat in to have this fixed?
Thanks for this great forum! Joe