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post #11 of 35 Old 06-12-2019 Thread Starter
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Re: Stuffing box problems

I called the Mack Yachts services that specializes in IP service. Maybe they have this magic tool. I will try the PB blaster. Neither the backing nut, nor the compressing nut are willing to move in any direction. Thank you for your suggestions.

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post #12 of 35 Old 06-12-2019
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Re: Stuffing box problems

I find that I can apply a *lot* more torque on the stuffing box nuts using a wrench like this

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1





if you cant find that magic tool, it might do the trick.
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Last edited by bristol299bob; 06-12-2019 at 09:38 PM.
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post #13 of 35 Old 06-12-2019
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Re: Stuffing box problems

FWIW that gland is extremely unlikely to be brass - I have never even heard of a brass stern gland.

It is almost certainly bronze.
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post #14 of 35 Old 06-12-2019
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Re: Stuffing box problems

If you are confident that the wrenches will not slip, and round the fittings, you could position the wrenches such that the handles are close together, and will loosen the nut when pressed together. Then, apply extra torque by putting some kind of clamp on the end of the wrench handles, and close the clamp.
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post #15 of 35 Old 06-12-2019
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Re: Stuffing box problems

BTW, 2 drips per second is about 11 gallons per day. If you had to leave your boat for a week, that would be 77 gallons... that would be a little bit of an issue if your bilge pump had any problems.
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post #16 of 35 Old 06-12-2019
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Re: Stuffing box problems

You do need two wrenches. Can't apply enough torque due to the flexibility of the hose connection with only one. You need to hold the gland with one and loosen the locking nut with the other.
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post #17 of 35 Old 06-13-2019
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Re: Stuffing box problems

When I repacked the stuffing box for the first time I had to use 2 pipe wrenchs with a piece of conduit over the handles to act as a cheater. You need to getEVERYbit of the old packing out. I did it with the boat in the water and I used a string coated with wax to stop the inflow of water once the nut was separated. I can't post the link but I think MaineSail had a page devoted to this on his site. I used Gore graphite flax and followed the procedure of cutting each wrap at a 45 for the seams and then rotating each seam 120 degrees (mine only calls for 3 wraps). Not having water coming into the boat well do wonders for your piece of mind!

You may have noticed that I am a fan of using cheater bars. It's amazing what leverage can do.
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post #18 of 35 Old 06-13-2019 Thread Starter
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Re: Stuffing box problems

I talked to Mack Yacht services about it. Colin Mack said that there is no magic tool and serious torque is required. Heating the nut might be necessary. And the movement is slow and torturous, as you have reposition the wrenches above and below the shaft to get them moving. Leveraging is often required.
The problem is that very few wrenches fit into the narrow space in the keel where the stuffing box is located.
The drip rate went down and bilge pump did not kick in more than once during the night.
Iím tempted to leave it alone until I haul out later this summer.

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post #19 of 35 Old 06-13-2019 Thread Starter
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Re: Stuffing box problems

The drip rate now is one drop every 8 seconds.

Be kind, for everyone you meet is fighting a hard battle.
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post #20 of 35 Old 06-13-2019
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Re: Stuffing box problems

Quote:
Originally Posted by krisscross View Post
The drip rate went down and bilge pump did not kick in more than once during the night.
Iím tempted to leave it alone until I haul out later this summer.
Good idea.

I'm not a fan of doing "leaky" work on boats in the water unless it's an emergency with no option to haul out.

Look at the penalty for failure. I've seen horror stories about stuffing boxes breaking apart when torqued on, through hulls snapping off and so forth.
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