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Old 03-08-2016, 09:25 PM   #1
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Help rudder packing box

Hey guys I am in in need of your help. I have a 1978 albin 36. My rudder packing has started leaking at least 5 gallons a day. I am new to large boat ownership so am having to learn quickly. Anyway the boat is located in fort lauderdale and to put the boat on the hard not only is terribly expensive but there is a huge waiting list. Has anyone done the packing still in the water? I am concerned with something going wrong and being in a really bad spot. I have tried to find videos or pics to more of what I am up against but am having trouble. Any help? Thanks in advance
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Old 03-08-2016, 09:34 PM   #2
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Greetings,
Damp welcome aboard. Here's some information that can be directly applied to rudder stuffing boxes as well. Yes, they have been successfully repacked while afloat. Better minds than I can suggest which TF threads to look up.
Re-Packing A Traditional Stuffing Box Photo Gallery by Compass Marine How To at pbase.com
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Old 03-08-2016, 09:45 PM   #3
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My rudder shaft stuffing box is a lot different than the stuffing box pictured. I have two nuts up top holding on the top on . My prop shaft looks more like one pictured in the link. Thanks for the info I sure a lot of the information will help my future problems. I will try to post pics tomorrow.
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Old 03-08-2016, 10:44 PM   #4
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prcdnl785.
I've had both types. the type RT Firefly gave you the link for on was on my prop shaft. I changed that one for a PSS seal due to po hacking it with a chisel and over tightening it as he didn't have the right spanner.
I also have the type with 2 nuts on the top on my rudder.
Firstly, it may only need adjusting so try this first.
Try pumping grease into it the rudder fitting through the nipple, some have a Stauffel cup which pushes grease in when you turn it clockwise. Unscrew it and refill it with grease when it won't tighten anymore.
Get a good fitting spanner and tighten each nut half a turn alternately and the flow should slow down, as soon as the water flow stops, stop tightening the 2 nuts.
Then get a buddy to turn the wheel slowly from full lock to full lock while you pump some grease into it. If a Stauffel cup use one cupful, if a grease nipple about 4 strokes.
If that doesn't work then you can think about repacking the rudder. If there's an engineering shop dealing with valves or steam boilers around, ask for some 1/4'' PTFE steam packing, it's the same stuff you get in a ships chandlers without the fancy packaging and half the price.
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Old 03-08-2016, 10:50 PM   #5
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So 1/4 inch packing is most likely the size i need?
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Old 03-08-2016, 11:48 PM   #6
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Most leisure boat rudder shaft sizes are 1 1/2'' if yours is the same then yes 1/4 PTFE will do the job nicely.
If you have to repack, then cut a length sufficient to wrap around the shaft with an angled cut so that the ends overlap but are the same level, if can follow me.
You will need 4 of these cut initially, coat them lightly in waterproof grease
You will then have to remove the rudder arm from the top of the rudder, undo the 2 nuts.
Get a piece of old wire like a gas welding rod, wire coat hanger and file one end to a sharp point.
Bend the point over to make a hook, shape the other end to make a handle..
Make sure your bilge pump is on automatic.
Slide the top fitting up over the 2 bolts.
Use the hook to remove the old packing, water will come in but that's normal, don't panic.
Now push in evenly the first ring of packing, tap down evenly with the blade end of a screwdriver so the packing is seated flat all round.
Repeat with the next ring, offset the joins to 12, 6, 3 and 9 o'clock positions.
Return the top fitting and tighten the nuts until the water flow stops, reassemble the arm.
Check it regularly and adjust until it's fully bedded in.
There should be no leaks.
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Old 03-09-2016, 05:50 AM   #7
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Greetings,
Mr. 785. An easy way to measure for the size of packing is to take off the 2 nuts, lift the top and try to fit a drill bit in the space between the rudder shaft and the housing.

The size of bit will be VERY close to the size of the packing. IF a 5/16" bit fits in, for example, better to get the next smaller size packing (1/4" for example) than the next larger size packing (3/8" for example) IF 5/16" is not available.

Better a touch too loose than a touch too tight when installing. Install as per Mr. IR's post.
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Old 03-09-2016, 06:44 AM   #8
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A gentile tightening , and grease should hold for almost ever as the rudder motion underway is usually quite mild.

If the fitting has a 1/8 or so pipe fitting plug, remove it install an outboard SS zerk fitting and purchase a small grease gun. No federal permit yet required.

Fix it when the bottom paint wears out and you haul next.

And BE SURE to purchase the packing ONLY after measuring the size needed.
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Old 03-09-2016, 08:08 AM   #9
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As has been stated, you might not need new packing yet. Try tightening it first.

If you do decide to re pack while in the water, don't freak out over the amount of water coming in. Your pumps will easily stay ahead of it.

Like FF said, packing sizes vary depending on who made the gland. Measure before you buy.

Since the leak is only five gallons a day, you could just wait until your next haul out to deal with it. Just make sure your automatic pumps are working.
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Old 03-09-2016, 10:03 AM   #10
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"And BE SURE to purchase the packing ONLY after measuring the size needed."

Not necessarily. I had some 3/4 teflon packing (for my shafts) from which I tore off some for the rudder. It had been leaking a steady stream, several gallons a day, and since repacking with a torn off strip about 1/4" diameter, it has not leaked a drop in about 10 years.
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Old 03-09-2016, 10:51 AM   #11
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Mobile Uploads by prcdnl785 | Photobucket this is the mess I am dealing with
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Old 03-09-2016, 11:26 AM   #12
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Here is the mess I am dealing with

http://s1305.photobucket.com/user/prcdnl785/library/Mobile%20Uploads
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Old 03-09-2016, 02:36 PM   #13
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I'd start with an acid washing and a good wire brushing.
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Old 03-09-2016, 03:02 PM   #14
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thanks for all your help

Allright guys thanks for all your help i was able cut two pieces of packing and install them on top of other old ones leak is stopped for now. I can find a marina now at my leisure to get put on hard and replace the thru hulls and such
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Old 03-09-2016, 04:08 PM   #15
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Greetings,
Mr. 785. Atta' boy! At some point I'd take Mr. 11's advice and clean up the area. Not a big job and sooner will be better than later. So....Head on up to Publix (they've got beer on sale this week) grab a box and celebrate.
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Old 03-09-2016, 05:29 PM   #16
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I currently have my boat out of the water doing some rudder surgery. I was just going to clean out the stuffing boxes and repack. The yard recommended dropping the rudders and I'm sorta glad I did. We found major pitting and some worn linkage parts as well as binding upper bearings. This explains my hard kinda grinding steering. Not looking forward to the bill for new rudder shafts. My packing wouldn't stay leak free even when I tightend up as the pitting just caused it to leak after turning the rudders a few times. Something to watch for.


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Old 03-09-2016, 05:46 PM   #17
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I used the GFO packing in my two rudder packing gland, was maybe 8 years ago. Never has leaked, and I have not even checked the packing. The rudders are bronze, the packing gland contraption is bronze. It has a packing nut on top and a lock nut. The rudder shaft is SS.

When I did this on the hard, I did put wheel bearing grease in the space where the rudder shaft slips up into the housing. I guess my thinking was the grease would float above the water and maybe keep the thing drier and maybe the SS from crevice corroding..

My one concern was what if it left an oil sheen on the water, but it did not. I have read some people have grease fittings on stuffing boxes. And they pump in grease.
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Old 03-10-2016, 06:16 AM   #18
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"I can find a marina now at my leisure to get put on hard and replace the thru hulls and such"

Why replace thru hulls?

Have they gone pink?

Pulling each and inspecting it , then returning it to the sea cock is the norm.

Along with greasing the sea cocl.
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Old 03-10-2016, 11:59 AM   #19
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Quote:
Originally Posted by tallswede View Post
We found major pitting and some worn linkage parts as well as binding upper bearings. This explains my hard kinda grinding steering. Not looking forward to the bill for new rudder shafts. My packing wouldn't stay leak free even when I tightend up as the pitting just caused it to leak after turning the rudders a few times. Something to watch for.
Kevin
I feel your pain.

Here's what we found when we dropped our rudders.




Had them ground down and sprayed with Inconel and they turned out nicely. Saved a bunch of money with this approach and the Inconel is less susceptible to corrosion than the original SS.



Here's the whole saga along with some excellent commentary by knowledgable folks on the forum. Good luck.

http://www.trawlerforum.com/forums/s...fts-23057.html
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Old 03-10-2016, 01:42 PM   #20
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Rudders don't have a lot of twisting force on them. I greased mine a lot filled up that space with grease after repacking on the hard.
Mine did not have any crevice corrosion and I figured the grease would help keep the water away. Grease floats on top of water.

My prop shafts do look like that and they looked like that when I got the boat back in 1998 and they still have not snapped. I have been thinking of grinding them a little maybe 0.01" with a belt sander, then using an epoxy to seal that area on the next haulout.
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