The Dreaded Dripless Shaft Seal - Part II
Not only will this post be about replacing the Dripless Shaft Seal, it will be about the Cutless Bearing as well. A Cutless Bearing works by drawing in a flow of water which lubricates the shaft (lucky for us since the bottom of the boat has an endless supply of lubrication). Since the dripless seal was 20 years old, & I could find no record of a bearing replacement, I summarized that cutless was original as well. The previous owner said the cutless was "maintenance free", if you have owned an inboard shaft boat you know that is not the case. A cutless can have a long life (like this one did) or a short one. If a boat is run in a lot of sandy silted water, the water drawn thru the cutless contains that sand & it becomes is an abrasive that wears away at both the bearing and the shaft. Also a mis-aligned shaft can wear out a bearing, this is generally noticed when one side of the inner core is a bit thinner than the other...