Stuffing box leaks - Page 2 - SailNet Community
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post #11 of 18 Old 06-28-2008
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Originally Posted by sailingdog View Post
Just curious, is this boat new to you or have you owned it a while? If the boat is new to you, I would HIGHLY RECOMMEND that you re-pack the stuffing box after inspecting the prop shaft for wear, scoring and other issues.
Well, he's had it at least two years (see previous comments from him), so the boat's not really "new to him" anymore. I'd say if he's not yet re-packed the stuffing box since he's owned the boat, so he really doesn't know what condition its condition is in, he should do that, anyway.

Jim
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post #12 of 18 Old 06-28-2008 Thread Starter
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Thanks to everyone for your help. I have owned the boat for five years. The shaft does turn when under sail, and always has. I typically put it in reverse to stop it. The leak when under power is much more than a drip--it's a steady stream. I am more than willing to undertake the repair myself, and will check the tightness of the bolts. My main concern is whether I could wait till end of season to haulout and repair properly or if this is a type of problem that could significantly worsen within a few months.
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post #13 of 18 Old 06-28-2008
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If you try to rely on your automatic bilge pump to take care of this problem until you haul out you risk the possibility of allowing your batteries to get overwhelmed. The repercussions of this are having a flooded or sunk boat. Don't ask how I know this... fortunately my boat only flooded requiring a new battery and several engine oil changes to get the water out of there. You could probably do the re-packing on a quick haul out in 1/2 hour and save yourself some potential grief.

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post #14 of 18 Old 06-28-2008
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My boat came with the Norscot dripless shaft seal. This is my third boat, and if/when I buy another, if it doesn't have this wonderful little independent system I'll install it. I check the fluid level (ATF) every few months, and that's it. In the year I've owned the boat, I've topped off the fluid once. Love it.

EDIT: The shaft link above that is automatically generated by the SailNet store is not the same seal system. I don't have experience with the PSS system. I searched Norscot on the store site, but the results were zero.


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Last edited by Moonfish; 06-28-2008 at 12:40 PM.
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post #15 of 18 Old 06-28-2008
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I'm informed it's possible to replace the packing gland material in the water. One method I read about is to tightly tie a cut-open bicycle inner tube around the end the water would come in when you take the nut loose. Another is to place some rolled-out silly putty in a sandwich bag and stuff it in there. One of my club mates told me not that much water would come in while you were doing it, anyway, so if you've got the nerve, just let it flow .

Obviously you'll want your new packing material rings cut in advance and you'll want to make sure you'll have on-hand all the tools you'll likely need, incl. a good selection of picks with which to get the old material out. I only needed a right-angle pick I picked up at a local tool store, but I had a whole selection on-hand, incl. a set of dental-tool-like picks, just to be sure. (I did mine while the boat was on the hard--prior to spring launch.)

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post #16 of 18 Old 06-28-2008
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As stated previously, you can do this in the water. Not that much water comes in. Go for it!

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post #17 of 18 Old 06-29-2008
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I own an inboard version of the S2 7.9, and just installed the PSS dripless shaft seal. I had way too much leaking last year, and tightening the packing no longer slowed it down. It was not extremely difficult, except for the tight access, and it works great. I am finally dry as a bone. Obviously the boat has to be out of the water to replace it. I pulled the old brass stuffing box to get the dimension on the stub that the new unit attaches to. Cost of the part for the 1 3/4" x 3/4" (shaft) was less than $300, but well worth it.
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post #18 of 18 Old 06-30-2008
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Quote:
You can try to tighten the packing nut a little to see if that stops or slows the leak.
This is the first thing to do. Do that, come back, let us know whether it worked. Sometimes a quarter turn is plenty to stop a stuffing box leak.

beej67, Checkered Past, 1980 32' Pearson 323, Panama City FL
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