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rudder post gland packing

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Created by shotduck > 9 months ago, 11 Aug 2022
shotduck
4 posts
11 Aug 2022 7:17AM
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Hi guys. It has been brought to my attention that my rudder gland needs repacking see photo . My question is can it be done insitu or will i need to drop the rudder on dry land. thanks "shotduck"

Bushdog
SA, 302 posts
11 Aug 2022 12:59PM
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Your pic shows (bottom to top) rudder post with threaded tube, thin gland lock nut, larger gland nut and gland which holds packing, and rudder shaft. Often the rudder gland is above waterline anyway - yours seems dry when photographed. The gland only works when the boat is working/healing. Also, rudder doesn't turn rapidly like prop shaft so little (no) chance of overheating and scoring the shaft. First option is to clean it up and see whether much water is coming in when you've been sailing. You could next try tightening the gland a couple of turns. If you really want to play, buy some new Teflon/impregnated packing suitable for your rudder stock diameter, undo the gland and replace the old packing. Hook out the old packing with a small pick or similar. Wrap new packing round the rudder stock 5-6 times then cut it longitudinally along the stock to form a number of washers. Pack them in the gland with cuts 180 degrees away from previous one, like with rings in a motor. You won't need to lift the boat for this job.

Lazzz
NSW, 857 posts
11 Aug 2022 2:23PM
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Mine is below the waterline so I had to get a lift with the travel lift for an hour just sitting in the slings while I replaced it.

woko
NSW, 1514 posts
11 Aug 2022 2:51PM
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I had the opportunity to observe exactly same thing, leaking underway only. If it's bothering you grab a couple of big spanners and see if you can nip it up, just a flat or point at a time. If not then you might want to repack it, if it's dry you can do it comfortably in situ, if you have water ingress you can still do it in situ just not so comfortably. The right size packing is the difference between the shaft and the internal of the packing nut minus a couple of millimetres

garymalmgren
1100 posts
11 Aug 2022 3:19PM
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Hi Shotduck.

As Woko suggested try to nit it up a bit first, but gently. Don't overdo it.
If just a small leak under sail I would live with it until next haul out.

If you think it warrants more attention:
What boat is it?
Is the bearing above the water line? (It can be above the water line and still leak as the water in the rudder tube is "pumped".)
How much is it leaking?
As mentioned above, is it leaking at the mooring or under sail only?
Lastly where are you and what are the tides like?
With the right tide you can run her up on the sand with the stern anchor out. Do the packing swap as Bushdog explained and run of on the next high tide.
That is the way it way done (cheaply) back in the old days.


gary

shotduck
4 posts
13 Aug 2022 7:24AM
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Thanks for the help gents the boat is a s@s 30 defiant on lake mac.quarie so no tide to worry about. I also found a video on u tube that is the same gland. I will try to have a look next week and i will let you know. Does anyone have a trained squirrel that I can borrow because the access is extremely limited.

Ramona
NSW, 7400 posts
13 Aug 2022 5:57PM
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Select to expand quote
shotduck said..
Thanks for the help gents the boat is a s@s 30 defiant on lake mac.quarie so no tide to worry about. I also found a video on u tube that is the same gland. I will try to have a look next week and i will let you know. Does anyone have a trained squirrel that I can borrow because the access is extremely limited.


I have the same gland nut arrangement. I would suggest cleaning it and leaving it alone. Spray some lanolin over it. If it does leak loosen the lock nut and lift up the tapered nut and stick in some grease. The packing is probably only 40 years old and on a rudder it's unlikely to be worn.

shotduck
4 posts
18 Aug 2022 7:42AM
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Hi Ramona, followed your suggestion on tuesday and went sailing, all is well again.

Ramona
NSW, 7400 posts
18 Aug 2022 6:43PM
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Select to expand quote
shotduck said..
Hi Ramona, followed your suggestion on tuesday and went sailing, all is well again.


Going sailing is always the best fix.



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