Water in Gear Oil (dealer can't find any leaks)

[Guido]

Last time we had the boat out, I noticed that the gear oil looked milky. I to it to the dealer, they did a pressure check and vacuum test on it and can't find a leak anywhere. They think that a seal became loose and when they changed out the lube that the seal reseated and everything is fine.<br /><br />What do you guys think? I am picking up the boat after work and we are planning on taking it on its last cruise of the season in a couple of weeks. I just want to make sure I don't have anything to worry about.<br /><br />Oops forgot to add that the engine is a 1999 3.0L Mercruiser I/O on a 17' Starcraft 1710.<br /><br />Thanks.

 

[Wellcraft 89]

Re: Water in Gear Oil (dealer can't find any leaks)

Alot of times we see the shift shaft seal leak.<br />only way to chk is to shift the drive by hand while under test (vacum or press)and rotating the drive shaft and prop shaft.<br /><br />I would chk it again right after getting back from your trip and change before winter just in case <br />don't want it freezing in there.<br /><br />Rich