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Kingfisher 26 JR keel tanks.

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  • 27 Apr 2017 21:57
    Quote
    Reply # 4787735 on 4772309
    Anonymous member

    Hi Peter, Rick,

    have you thought of just sandblasting the keels and then fiber-glassing them? I have done this in the past with good results, provided you use thick enough glass, at least a total of 1200 gsm, with extra on the bottom to allow for some chafe in the inevitable groundings. Also make sure that you glass over the joint to the hull and at least 150mm back onto the hull beyond the joint. 

    David.

    Last modified: 27 Apr 2017 21:59 | Anonymous member
  • 27 Apr 2017 17:02
    Quote
    Reply # 4787145 on 4785727
    Anonymous member
    Rick Cowap wrote:

    Hi Peter 

    I'm in the same boat (sorry) with Yeong, the 30' version of the Kingfisher.

    I can't help but toy with the idea of using the keels to create a "keel cooling" system for the engine, either direct or via the heat exchanger. (I've got a small Kubota that I'd like use to replace the venerable Volvo)

    One thing, the previous owner said that not only does the rust attack the external surface but there's a component of galvanic action that made pinprick holes into the keel tanks. He discovered this in the IoM whilst wondering what plonker had ditched so much diesel into the harbour, then realising it had come from his tanks.... I've not tested this but will be investigating whilst I weld up some of the craters on my keels.

    I'll be very interested in your progress and photos, thanks for sharing

    Rick

    Rick

    Thanks for the information.  I have to say the tanks make me nervous, if for no other reason than I don't actually know yet why they were decommissioned.  The tank fittings are totally corroded (pic in my album) and the smallish locker is made even smaller by the pipework etc.  which is why I wan to cap the tanks and remove the pipework/fittings to free up valuable space.

    I'm still pondering the options and will keep your posted.

    Peter
  • 26 Apr 2017 23:16
    Quote
    Reply # 4785727 on 4772309
    Anonymous member

    Hi Peter 

    I'm in the same boat (sorry) with Yeong, the 30' version of the Kingfisher.

    I can't help but toy with the idea of using the keels to create a "keel cooling" system for the engine, either direct or via the heat exchanger. (I've got a small Kubota that I'd like use to replace the venerable Volvo)

    One thing, the previous owner said that not only does the rust attack the external surface but there's a component of galvanic action that made pinprick holes into the keel tanks. He discovered this in the IoM whilst wondering what plonker had ditched so much diesel into the harbour, then realising it had come from his tanks.... I've not tested this but will be investigating whilst I weld up some of the craters on my keels.

    I'll be very interested in your progress and photos, thanks for sharing

    Rick
  • 26 Apr 2017 16:32
    Quote
    Reply # 4781543 on 4772309
    Anonymous member

    Best I can offer is "if it ain't broke, don't fix it". If the tank is filled with anti-corrosive fluid, that sounds OK, doesn't it? But is what's surrounding the lead ballast unknown?
  • 26 Apr 2017 16:17
    Quote
    Reply # 4781137 on 4772309
    Anonymous member

    I was rather relying on the wisdom found on these fora to guide me through the challenge of capping steel fin keels..... 

    Annie, in answer to your question the steel plate seems to be in a reasonable state externally.  There is surface rust but having removed an anode and through bolt on the trailing edge it seems there is a good thickness of plate.  My intention is to remove the external surface rust and treat before applying copper coat.  Internally.... I'm still not sure.

    Peter

    Last modified: 26 Apr 2017 16:51 | Anonymous member
  • 24 Apr 2017 17:16
    Quote
    Message # 4772309
    Anonymous member

    I have recently acquired a K26JR.  For reasons as yet unknown the keel full tanks are not in use and an additional tank has been added in the cockpit locker.  The previous owner tells me that he has filled the keel tanks with an anti-freeze and and anti corrosion product used in domestic heating systems.  

    I want to seal off these tanks once and for all but not sure what the best way is to do this. As I see it there are 2 options...

    1. Fill the tanks with oil and then seal them (expensive!!)

    2.  Fill them with a concrete slurry and then seal.

    Does anyone have a better idea and or experience with something like this?  

    The KYOA website states the keels are steel with lead ballast, each tank holding 68 litres!!

    Advice welcome.

    Peter
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