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Nightwatch

Skin Tank had emptied itself.

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Sylglass original greenish gooey fabric tape is good, hardware / garden centres. Then, refill. and as Tony and others have said run the engine with pressure cap removed.

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To add to what Tony said, if you end up running on a fragile external repair, it may be worth removing the thermostat. As Alan mentioned earlier, the other side of the skin tank may also be suspect, with that in mind it may be advisable to have the tank cut out from the outside and a new one welded in, complete with the hull side of it.

  • Greenie 1

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5 minutes ago, BWM said:

 it may be advisable to have the tank cut out from the outside and a new one welded in, complete with the hull side of it.

That's a good way to fix it, depending on the condition of the hull side of the tank.

 

I'd want it out of the water before investigating with a hammer though!

  • Haha 1

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Small holes that you can get at can be blocked with cocktail sticks, once they swell the leak will stop.

I've seen hulls with big holes come into the dock with firewood sticking out of the bottoms, a Springer I remember well had 11 sticks hammered in down the vee line of the bottom. kept it afloat for a week while it motored to the dock.

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1 minute ago, hider said:

Small holes that you can get at can be blocked with cocktail sticks, once they swell the leak will stop.

I've seen hulls with big holes come into the dock with firewood sticking out of the bottoms, a Springer I remember well had 11 sticks hammered in down the vee line of the bottom. kept it afloat for a week while it motored to the dock.

Yes, but if your skintank had 5 quarter inch holes near each other, would you trust that the wood swelling wouldn't break the rest of it into a great big hole?

 

If it's the hull that's holed you dont have much choice but to try it, but @Nightwatch isn't sinking as far as we know!

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Can you remove the skin tank from the equation temporarily remove input and output hoses and plum in either a long length of heater hose and drop that into the cut or into your boat central heating system, or alternatively re configure raw in raw out 

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9 minutes ago, TheBiscuits said:

Yes, but if your skintank had 5 quarter inch holes near each other, would you trust that the wood swelling wouldn't break the rest of it into a great big hole?

 

If it's the hull that's holed you dont have much choice but to try it, but @Nightwatch isn't sinking as far as we know!

I can't find where the OP said he had 1/4" holes.   He quotes larger than a pin, smaller than a knitting needle.

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Guest
24 minutes ago, hider said:

Small holes that you can get at can be blocked with cocktail sticks, once they swell the leak will stop.

I've seen hulls with big holes come into the dock with firewood sticking out of the bottoms, a Springer I remember well had 11 sticks hammered in down the vee line of the bottom. kept it afloat for a week while it motored to the dock.

Like it. I imagine a match would work if sanded to a point?
A guy in our marina used a pencil to keep a boat afloat, whilst another took his prop shaft out in the water to decide it was not a good idea as the water gushed in. Seems the plastic case that used to come with a 35mm camera film was a perfect fit and saved the day.

Edited by Guest

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2 minutes ago, catweasel said:

Like it. I imagine a match would work if sanded to a point?
A guy in our marina used a pencil to keep a boat afloat, whilst another took his prop shaft out in the water to decide it was not a good idea as the water gushed in. Seems the plastic case that used to come with a 35mm camera film was a perfect fit and saved the day.

A lot of boats carry a set of these :

 

Image result for tapered boat bungs

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I wouldn't prat about with it! It needs a specialist to look at it.

Boaters are usually a helpful lot. Can you ask a nearby boater to give you a tow to a place where you can get it sorted?

 

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30 minutes ago, hider said:

I can't find where the OP said he had 1/4" holes.   He quotes larger than a pin, smaller than a knitting needle.

Elizabeth (a.k.a Betsy) Bond, an art student from Wiltshire, UK, holds the record for the Largest knitting needles, which measure in at 4.42 m (14 ft 6.33 in) long and have a diameter of 9.01 cm (3.54 in).

 

http://www.guinnessworldrecords.com/news/2018/9/video-meet-the-woman-whos-made-the-worlds-largest-knitting-needles-541067

 

:giggles:

 

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16 hours ago, Nightwatch said:

Trying to find out where I can some of this stuff. Good tip about the filler cap. Been on rivers quite a bit in the past with no temperature issues. 

 

All very frustrating. But fixable. 

Also if you have a calorifier heated from the engine you can run off some hot water to reduce the temperature a bit if overheating.  Make sure you fill your water tank fully before travelling.

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1 hour ago, TheBiscuits said:

Elizabeth (a.k.a Betsy) Bond, an art student from Wiltshire, UK, holds the record for the Largest knitting needles, which measure in at 4.42 m (14 ft 6.33 in) long and have a diameter of 9.01 cm (3.54 in).

 

http://www.guinnessworldrecords.com/news/2018/9/video-meet-the-woman-whos-made-the-worlds-largest-knitting-needles-541067

 

:giggles:

 

Fatuous comment, just admit you misread the post.

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1 hour ago, TheBiscuits said:

Elizabeth (a.k.a Betsy) Bond, an art student from Wiltshire, UK, holds the record for the Largest knitting needles, which measure in at 4.42 m (14 ft 6.33 in) long and have a diameter of 9.01 cm (3.54 in).

 

http://www.guinnessworldrecords.com/news/2018/9/video-meet-the-woman-whos-made-the-worlds-largest-knitting-needles-541067

 

:giggles:

 

she probably lives close to the K&A and re-purposed a barge pole she had found laying about.    

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2 hours ago, Mad Harold said:

I wouldn't prat about with it! It needs a specialist to look at it.

Boaters are usually a helpful lot. Can you ask a nearby boater to give you a tow to a place where you can get it sorted?

 

We have bow hauled it to North Kilworth yard, not the new marina. We are soaked to the skin, we are drying off having a cuppa and then I'll go and chat to someone there. Someone said Ben. Prepare yourself Ben.

 

One boat passed us, a hire boat. It's made me realise that them there Horse are strong buggers. 

 

There's also busses here. 

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Hiya.

Just seen  your post. I live near Lutterworth  not far from Welford. If you need a lift anywhere locally, send me a PM.

 

Cheers.

 

  • Greenie 3

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2 hours ago, johnmck said:

Hiya.

Just seen  your post. I live near Lutterworth  not far from Welford. If you need a lift anywhere locally, send me a PM.

 

Cheers.

 

Thanks John. Been busy all afternoon chatting to these fabulous people at North Kilworth Wharf. Couldn't be more helpful. The new(ish) owner John immediately got a boat out and towed a Nightwatch the rest of the way to the wharf. Ben, long established engineer and all sorts man on site looked at the issue. Awaiting delivery of epoxy two pack sealer/filler stuff. If it arrives soon he will apply tonight to allow fir it to 'go off' overnight. Top up the system and pressure test before sending us on our way. That's the plan, what the plan doesn't allow for is that 'I' meaning me being part of the plan. Let's wait and see.

 

Didnt realise they do so much here. A couple of slipways. Resident boat painter. In the middle of a back to metal paint. Looks good. Very helpful.

  • Greenie 1

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Glad your plan seems to be on course and hope you have an uneventful journey towards a more permanent fix.

Any problems or if you need a lift whilst in the area,  let me know.

  • Greenie 2

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I had exactly the same happen at tixall wide a couple of years ago, i was luckily carrying a tube of evo instant metal putty and it did a really good repair until i got somewhere i could get the skin tank plated and welded , the secret is to give it twice as much time as you think for it to go off as the first time i did it i only gave it 8 hours and it blew out, second time i gave it a good 24+

Rick

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Beat four eggs up, or more in a mug as if for an omlette. Warm up engine and skin tank. Remove top hose from engine. Pour the mixrure into the skin tank down the hose where it will spread and begin to harden and cover the pin holes. Reconnect hose. Top up with water. Start engine and run until all is at normal temperature including skin tank, when the egg mix will harden further over pin holes and hopefully block em up. Do not pour mixture into engine which could block up waterways and goo up the thermostat.  Its really common sense. Look what happens if you eat too many eggs, they can block and bind you up with constipation for days, as can by drinking Holts Radweld. :closedeyes:

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22 minutes ago, mad dog n' Englishman said:

Hello again, glad they were able to help you. Didn't want to overstate their good service but thought they would be able to sort something out. Shows the value of a good small boat yard.

Cheers. 

Are you connected in any way? But good recommendation. 

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