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Post by Deleted on Apr 3, 2020 9:42:41 GMT
Was going to get this sorted at same time as blacking but due to various reasons will probably need to put off blacking for this year. Stern Gland needs sorting though.
Doesn't look to me to be too difficult (especially if I provide photos so the good folk here can provide advice) - major concern though is what are the dangers of it going horribly wrong (glug glug glug sort of wrong)?
Just looking for general thoughts at the moment to help me decide whether it is something I could do myself with the boat in the water.
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Post by Telemachus on Apr 3, 2020 10:06:55 GMT
Was going to get this sorted at same time as blacking but due to various reasons will probably need to put off blacking for this year. Stern Gland needs sorting though.
Doesn't look to me to be too difficult (especially if I provide photos so the good folk here can provide advice) - major concern though is what are the dangers of it going horribly wrong (glug glug glug sort of wrong)?
Just looking for general thoughts at the moment to help me decide whether it is something I could do myself with the boat in the water.
I’ve replaced the stern gland packing on ours, in dry dock. I’m sure it can be done with boat in the water but the idea rather scares me - too easy for things to go wrong IMO. It is not a difficult task and the stuff can be pre-cut etc, but once the icy cold water starts gushing in around your hands, I can see that there is potential for tragedy. At the very least, make sure you pump plenty of grease in beforehand to block as much as possible, the gap between shaft and bearing. I suppose you could be very naughty and do it in a lock in a flight having significantly lowered (ie drained) the water level in the lower pound. But don’t tell anyone I suggested it. |
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Post by naughtyfox on Apr 3, 2020 10:07:40 GMT
Our was done in the water. A man pulled 3 of the old black rings out with a hook, left the 4th in place (last ring), and shoved 3 new rings in. He said now I have seen it done I can do it myself in about 10 years' time.
But there's the question... how many rings of that black material do you have in there. I would say out of water is best, just in case!
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Post by JohnV on Apr 3, 2020 10:14:04 GMT
Was going to get this sorted at same time as blacking but due to various reasons will probably need to put off blacking for this year. Stern Gland needs sorting though.
Doesn't look to me to be too difficult (especially if I provide photos so the good folk here can provide advice) - major concern though is what are the dangers of it going horribly wrong (glug glug glug sort of wrong)?
Just looking for general thoughts at the moment to help me decide whether it is something I could do myself with the boat in the water.
I’ve replaced the stern gland packing on ours, in dry dock. I’m sure it can be done with boat in the water but the idea rather scares me - too easy for things to go wrong IMO. It is not a difficult task and the stuff can be pre-cut etc, but once the icy cold water starts gushing in around your hands, I can see that there is potential for tragedy. At the very least, make sure you pump plenty of grease in beforehand to block as much as possible, the gap between shaft and bearing. I suppose you could be very naughty and do it in a lock in a flight having significantly lowered (ie drained) the water level in the lower pound. But don’t tell anyone I suggested it. Sabina H's stern gland seems to need re-packing as well. It has been tightened up and I always wind lots of grease into it but there is a very tiny weep that still occurs after a few days. I know of it having been done in the water but it is not something I am prepared to do unless desperate . It will just have to wait until drydock or when I can get on to a drying sandbank |
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Post by Deleted on Apr 3, 2020 10:45:06 GMT
It is jot a difficult job in theory ... in practice whilst afloat is not the right time to try for the first time in my view UNLESS you can have an experienced person watching over you as you do it. It is not unusual for water to gush in and as Telemachus points out, this is not conducive to calm, clear thought or indeed vision. Were it I, then I'd get an experienced hand to do it / watch me do it ... or get the boat out first. Rog |
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Post by kris on Apr 3, 2020 10:48:01 GMT
I’ve done mine whilst the boat is in the water, it can be done. I think it’s the thought of it rather than the reality.
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Post by Isambard Kingdom Brunel on Apr 3, 2020 10:54:40 GMT
Always done them in the water.
If you have a bilge pump its no problem.
Wrap a poly bag round the shaft behind the prop, grease it up first, it will stop the water.
I have on 2 occasions even changed the stern bearing sleeve in the water this way. But then we did have the pump out hose available for instant use!
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Post by Deleted on Apr 3, 2020 10:55:09 GMT
I've seen it done kris ... messy but doable . Not for me  Rog |
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Post by JohnV on Apr 3, 2020 11:05:41 GMT
I have done it (much smaller shaft though) but only with the prop out of the water ...... would prefer not to try it in the water
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Post by Deleted on Apr 3, 2020 15:45:34 GMT
Thanks all. If Nick and Johnv suggest a lot of caution then I'll stop considering myself a wimp for not just getting around to it. Will have a think about it over the coming months.
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Post by naughtyfox on Apr 3, 2020 15:52:27 GMT
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Post by Deleted on Apr 3, 2020 15:55:23 GMT
Thanks all. If Nick and Johnv suggest a lot of caution then I'll stop considering myself a wimp for not just getting around to it. Will have a think about it over the coming months. Yes, do it out of water, and ask someone along to guide you (someone who knows, not some tosspot). Are there any decent videos on YouTube on explaining how to do this?Yes. It isn't difficult, just not in the water due to consequences/extra difficulties. |
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