Join Date: Apr 2009
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Hey, thanks for the replies! I always know that there's something I'm assuming, but not communicating in a message. Yes, here in the frozen North, the sailing club has to keep the boat on its trailer for half the year. We know that water from inside the hull leaks out through the propeller shaft tube, because it formed a rusty, frozen stream out of the gland and down the side of the keel!
The boat has a PSS dripless shaft seal, but it hasn't been too useful in this case, as it would fill up with water from the leak-- about 20-25 gallons per day last season! With the propeller shaft and the PSS shaft seal removed, we clamped a piece of rubber over the inboard side of the shaft log, and stuck the blower hose from the shop vac in the gland from the outside. With the tube thus pressurized, air leaked into the boat from various spots in the bilge, including one of the forward keel bolts. (The source of the rust?) I'm pretty certain that the water enters a crack inside the tube, and runs along the encapsulated lead ballast to the keel bolt-- we found a lot of the same wicking when we tore most of the (saturated) polyester fairing compound off the keel a few years ago, to replace it with epoxy compound.
I will give the Captain Tolley's a try. I hadn't thought of spraying it in. (At $14.99 for two ounces, it's mighty expensive to try to pour it in!) Thanks for the suggestion!