Are dripless shaft seals safe? What's better, a packless shaft seal or a traditional bronze stuffing box? If you have a dripless shaft seal (i.e. mechanical shaft seal or packless shaft seal) installed on your boat, it's important that you check it periodically to ensure it is safe and seaworthy. Many vessels have sunk or suffered severe water damage due to an improperly installed and/or ...
04-12-2008· Service Your Stuffing Box. Maintain this gland around the prop shaft to keep leaks at bay. From "Hands-On Sailor" in our January 2008 issue
30-06-2020· Stuffing Boxes, Shaft Seals, Bearings and Couplings . By Brian Gordon, Last updated 6/30/2020. Boats face the challenge of remaining leak-free while spinning one or more propellers outside the hull. Inboard boats use stuffing boxes or shaft seals to prevent water from entering the hull.
25-04-2007· We had our cabin flooded by a leaky stuffing box when we had an automatic pump set up which caused all manner of other problems including water in the Atomic 4 oil reservoir not to mention the mess. Once you re-pack the gland you can be satisfied that you will not have to touch it for another 5 to 10 years but you will always check it for drips.
08-06-2016· Boat takes on more water while running under a load but now it leaks when boat is sitting in water. I did replace the empeller shaft thing, it was leaking badly but still seeing water. I''ll check the manifolds again, but it disturbs me that the boat now takes on water sitting in lake.
21-07-2004· Your boat leaks underway because of the stern wake which effectively raises the waterline. Finally, my rudder did develop "play" due to wear. My yard's fix was to remove the existing bronze bushing and replace it with one made from Delrin (nylon). Of course this was done while the boat was out of the water and the rudder had to be removed.
If your stuffing box leaks more than 8 drops a minute, it needs adjusting. Two pipe wrenches are the tools needed for adjusting the stuffing box. Start by loosening the locking nut, this frees the adjustable stuffing box nut. As you tighten the Stuffing Box nut check for leaks while the props are idle.
11-01-2017· Packing gland, stuffing box: – The propeller shaft exits out of the boat through the stuffing box. This is below the waterline and is thus often a source of water leaks. A packing gland is inside the stuffing box to create the seal but since the shaft …
Even more disastrous, it puts an unattended boat at risk of sinking. If your stuffing box leaks more than 8 or 10 drops a minute, it needs servicing. Tightening the stuffing box nut a half turn is all that is required to reduce the leak, but the location of the stuffing box …
24-05-2011· Real boat mechanics use a pair of packing wrenches that cost about 4 times that. And to get the packing material out, I found a pack of 4 picks at Harbor Freight for like $2. You'll have to back the first nut all the way off, then use the picks to pick the waxy rope packing out of the packing gland.
09-02-2016· Similar in design to a stuffing box, rudder posts are liable to leak, especially if they've not been repacked for a while. Some boats have tubes which extend to deck level, while others are sealed at the hull, but it's worth checking any type for leaks and damage or cracks, especially when moving the helm across hard and lock-to-lock.
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01-02-1992· The stuffing box is designed to keep water out of the boat at the spot where the propeller shaft enters the hull — and at rudder shafts. It does this by compressing packing material tightly around the shaft. Remember that the stuffing box requires routine maintenance to keep working, just as the engine does. If you neglect it, the result may be serious damage to your drive train and/or propeller shaft, and more leaks …
02-04-2019· 6. Need some advice on a dripless stuffing box. Bought the boat last year and kept finding a little water in the bilge couldn't trace where it was coming from but not enough to worry about. This morning took her out for a shake down cruise, bilge was dry when we left 30 minutes into the ride opened Engine box couple inches of water.
A dedicated stuffing box wrench with straight jaws, like the one shown, is good at getting into cramped spaces. Doug Logan photo. It must be the drip, drip, drip torture you endured all last season as you anxiously watched the old seal leak a little too fast for your liking, the flax packing material having saced itself as it is supposed to do.
When properly adjusted, stuffing boxes are designed to "leak" slightly at two to three drops per minute while the engine is running and the shaft is turning. There should be no dripping when the boat is at rest and the shaft is not spinning. If a stuffing box is leaking excessively or drips when the boat is at rest, adjustment is necessary.
01-06-2011· Stuffing box/possible HDS leak questions. WBLskier Posts: 477 Baller. June 2011 edited June 2011 in News & Other Stuff. Hi all--I have a quick question on the stuffing box. Mine was re-packed by my mechanic. As far as I can tell it is not leaking much (if at all). I have felt the brass nut after running for a while and it does not seem warm to ...
The Stuffing Box (click any image to see a larger version) While digging around in some old boat parts boxes I found a stuffing box from an older sailboat. I though it would be a good time to rig it up in my shop and illustrate how to replace the packing material inside one of these tried & true work horse style stuffing boxes.
A stuffing box, also called a packing gland, doesn't have to leak much. In fact, it may not be dripping at all while the boat is at rest, so that the owner may be misled …
25-04-2007· This is not the most difficult thing to fix and is normal 5 - 10 year required maintenance. Depending on the boat you will need to get some new packing material for the stuffing box but you need to know what size packing to get which only an owner of your kind of boat …