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  #1  
Old 04-22-2014
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Stuffing Box Hose Blues

Da na na na na...
Got my stuffing box apart...
da na na na na...
brought it on home...
da na na na na...
got it all cleaned up...
da na na na na...
but now the hose is so tight...

Well it's, so tight baby, I can't get the fitting in...

So now I'm singin' ... singin' the stuffing box blues.

OK, ok, I'll stop. But, seriously, the ID for the Buck Algonquin hose is 1 3/4", and the OD for the fitting (the stuffing box body) is about 1 7/8". That extra 1/8" makes it REALLY tough to get it to fit. I left the heat gun on the boat, so that's not an option. Can I boil some water and let the hose soak in it? What other tips do you have for getting it to fit?

Any tips that would also translate well for when I'm installing this on the boat (which I presume has a similarly over-size fitting) are also appreciated.

Before anyone asks...yes, I have 4 of the hose clamps, not just the 2 in the picture.

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  #2  
Old 04-23-2014
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Re: Stuffing Box Hose Blues

Quote:
Originally Posted by jimgo View Post
Da na na na na...
Got my stuffing box apart...
da na na na na...
brought it on home...
da na na na na...
got it all cleaned up...
da na na na na...
but now the hose is so tight...

Well it's, so tight baby, I can't get the fitting in...

So now I'm singin' ... singin' the stuffing box blues.

OK, ok, I'll stop. But, seriously, the ID for the Buck Algonquin hose is 1 3/4", and the OD for the fitting (the stuffing box body) is about 1 7/8". That extra 1/8" makes it REALLY tough to get it to fit. I left the heat gun on the boat, so that's not an option. Can I boil some water and let the hose soak in it? What other tips do you have for getting it to fit?

Any tips that would also translate well for when I'm installing this on the boat (which I presume has a similarly over-size fitting) are also appreciated.

Before anyone asks...yes, I have 4 of the hose clamps, not just the 2 in the picture.

Enquiring Minds want to Know (i have to do this in May)


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Old 04-23-2014
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Re: Stuffing Box Hose Blues

I do believe you are going to have to get the right hose. I wouldn't waste my time trying to fit the two together. Using enough heat to get that hose all the way on the gland will most likely damage the hose and weaken it considerably. This is a semi permanent installation, so it makes no sense not doing it right the first time.
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Old 04-23-2014
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Re: Stuffing Box Hose Blues

If soap or glycerine doesn't work it is the wrong size, something will break putting it together.
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Old 04-23-2014
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Re: Stuffing Box Hose Blues

The o.d. of the shaft log is presumably going to be the same as the stuffing box, so you're in for a nightmare back aboard as well. You need the right size hose. You can't stretch an internally reinforced hose. An 1/8" is a lot. I've had nightmares trying to retrofit SAE hoses onto metric fittings that were so close, you could hardly tell.
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Old 04-23-2014
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Re: Stuffing Box Hose Blues

Next size up in Buck Algonquin coupling hose is 2 inch. Looks like your choices are too small or too large.
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Old 04-23-2014
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Re: Stuffing Box Hose Blues

The barbs on that nipple look rounded over. Maybe you should consider replacing the whole unit. It's possible someone may have used a file on it already when they had the same problem you're having. Heating it up enough to stretch it that far is a bad idea. I would not take a chance with something so inaccessible and critical to staying afloat. Maybe you'll get lucky and the new threaded part will be the same as the old so you can leave the hull side on.
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Old 04-23-2014
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Re: Stuffing Box Hose Blues

Unfortunately you will need an 1 7/8" hose. It is too bad builders went this route but back in the day they went with the cheapest vendors and often times the cheapest vendors used odd ball sizes.. You will need to try and source a 4 ply non-wire reinforced wet exhaust hose. I was able to find one a few years ago but can't remember where. If you can't find a 4 ply then you will need to use a 2 ply such as Shields #200. Call Trident and Shields and see what they have in 1 7/8" in a 4 ply no-wire hose....

T-Band clamps should not be used in bilge areas! The spot welds are prone to crevice corrosion and failure.... Use AWAB 316SS no-perforated clamps...
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  #9  
Old 04-23-2014
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Re: Stuffing Box Hose Blues

Jim,

My solution to this problem was to convert to a dripless PSS shaft seal...
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Old 04-23-2014
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Re: Stuffing Box Hose Blues

James, as I look at having to replace more and more of the stuffing box, the PSS is becoming more cost-effective. I may have to bite the bullet and install one.

Thanks to everyone for weighing in. I thought maybe I was nuts, or not doing something right. As JimsCAL pointed out, the only hose sizes I saw were 1.75" and 2". The 2" is listed as being for a larger diameter prop shaft, so I decided to go with the 1.75". I didn't even realize that there WAS an intermediate size!

Main Sail, thanks for your feedback, especially about the band clamps.

What I'm now having trouble understanding is how the shaft log works. On my boat, there is a large metal plate in the area where the shaft passes through the hull. The shaft log (I hope I'm using the right term; it's the pipe/tube that the shaft actually passes through) appears to be integrated into this metal plate. Am I wrong? Does the shaft log somehow get fitted into the metal piece (e.g., is it threaded in)?

The picture is big, so I'm not going to embed it in the thread, but here's a picture of the shaft log area. It's tough to make everything out because of the corrosion:

http://dragonwingsailboat.files.word...4/img_3667.jpg

If I go with a PSS, will I avoid having to replace the shaft log?
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