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18 February 2024, 11:29
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#1
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Member
Country: UK - England
Town: Southampton
Boat name: Ribellion
Make: Ribeye
Length: 6m +
Engine: Outboard, petrol,115
Join Date: Feb 2024
Posts: 6
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Main Bung
Anyone got views on this. I have a Ribeye A600. The main bung on transom is loose and needs replacing. The opening is smooth rather than threaded. The standard seems to be an expandable bung with a lever mechanism to compress the rubber. I’ve been advised to replace with a similar plastic bung that expands with a screw action rather than lever. The thinking being that the lever could get caught on something and accidentally released whereas the screw rather than lever fitting has a lower external profile. I’ve tried a metal and rubber screw-action expandable bung but the thread tends to stick meaning the rubber gasket doesnt expand and and the bung simply rotate in the opening.im told the plastic screw operated expandable bung is the one to go for but can’t find anywhere. Any thoughts?
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19 February 2024, 07:59
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#2
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Member
Country: UK - England
Town: portsmouth
Boat name: Hullabaloo
Make: Humber
Length: 8m +
Engine: 225 Optimax
Join Date: Mar 2011
Posts: 980
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Hi,
Most Ribeyes have that type of bung and they are widely available. Are you saying that the hole is bigger than standard?
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You get what you settle for!
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19 February 2024, 10:05
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#3
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Member
Country: UK - England
Town: Southampton
Boat name: Ribellion
Make: Ribeye
Length: 6m +
Engine: Outboard, petrol,115
Join Date: Feb 2024
Posts: 6
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Many thanks for responding. It’s a standard ribeye setup. I could just buy the same lever operated expandable bung again but have a nagging feeling that a bung that is below the waterline and is so important shouldn’t be lever operated because of the risk of catching. I suppose the most seaworthy solution would be to fit a threaded bung but I’d like to avoid the effort. The compromise I’d arrived at was an expandable bung similar to the original but a screw process to expand the seal rather than a lever. You can buy metal versions of this but the thread can stick. There is a plastic version which I’ve seen used and has been recommended but can’t find online. I keep the boat at the excellent Southampton drystack and they remove/check the bung every time it’s lifted. They alerted me to the fact the original was starting to fail. What do experienced rib owners tend to use, lever/wind-in expandable bungs or screw-in with a thread in the hull?
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19 February 2024, 10:15
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#4
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Member
Country: UK - England
Town: Southampton
Boat name: Ribellion
Make: Ribeye
Length: 6m +
Engine: Outboard, petrol,115
Join Date: Feb 2024
Posts: 6
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Thanks for responding. It’s a standard ribeye setup. I could just buy the same lever operated expandable bung again but have a nagging feeling that a bung that is below the waterline and is so important shouldn’t be lever operated because of the risk of catching. I suppose the most seaworthy solution would be to fit a threaded bung with a thread n the hull but I’d like to avoid the effort. The compromise I’d arrived at was an expandable bung similar to the original but using a screw-in rather than lever action to expand the rubber seal. There are metal versions of this available but the the one I tried tended to stick and was difficult to turn. There are plastic versions with a similar screw-in action which I’ve been recommended but I can’t find these online. I’d be interested what experienced owners prefer: expandable bung or threaded in hull?
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19 February 2024, 14:12
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#5
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Member
Country: UK - England
Town: portsmouth
Boat name: Hullabaloo
Make: Humber
Length: 8m +
Engine: 225 Optimax
Join Date: Mar 2011
Posts: 980
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We have about 20 Ribeye Ribs in our dry stack and they all use the screw-tighten expandable bungs. Can't think of a single incident where these have failed whilst in use. I'd go with that!
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You get what you settle for!
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19 February 2024, 20:08
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#6
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Member
Country: UK - England
Length: 3m +
Join Date: Sep 2008
Posts: 2,768
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Is your lever inside or outside the hull. Angled right it probably quite easy to not accidentally knock it, or even add something that makes it hard to knock.
From the outside a "flap" over the hole would reduce the rate of possible inflow (sailing dinghies have them on some self draining designs).
Even if you have a complete memory lapse and leave the bung out - other than wet feet - is there a real risk?
Tie the bung on so it never goes missing
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20 February 2024, 04:06
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#7
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Member
Country: Australia
Town: Beckenham
Boat name: No Name
Make: Highfield
Length: 3m +
Engine: Outboard Suzuki 30HP
Join Date: Mar 2019
Posts: 207
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CAJ6 I'm with you here. I didn't like the bung in my boat either as it is on the inside so the pressure of the water pushes it out. I was more worried about wear rather that be accidently released.
Fortunately in my case the tube the bung goes into extends out of the transome and has a male pipe thread. So I screw a cap onto it. I also have a bilge pump.
Shiny Shoes as well as wet feet you may get camera gear, phones etc soaked in water.
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20 February 2024, 05:19
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#8
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 2,956
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Rib shop have both sorts Why not just buy one of each
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20 February 2024, 16:19
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#9
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Member
Country: UK - England
Town: Southampton
Boat name: Ribellion
Make: Ribeye
Length: 6m +
Engine: Outboard, petrol,115
Join Date: Feb 2024
Posts: 6
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Thanks to all for comments. Great to get benefit of peoples experience. Apologies shinyshoe I wasnt clear, it’s the main bung that accesses the air gap inside of the hull not the deck drains. That’s why it’s more significant if fails. Will look for a good screw-tighten bung and hopefully be done.
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