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Oil in the keel?? Van Lent Feadship.

Discussion in 'Feadship Yacht' started by Noa Ramot, Nov 16, 2016.

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  1. Noa Ramot

    Noa Ramot New Member

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    Tel Aviv
    Hi all.
    ( I am a non English native, so I hope I used clear enough boat terms)

    We are doing dry dock to our loved 1959 60 feet feadship Van Lent.

    During masive cleaning of the engine room , we have pumped cleared and cleaned tones of old oil from this room, coming to the floor , i have discovered 2 holes that kept surfing oil. Went down to see where it goes and realised the the keel has also a triangle department above that is the actual bottom of the hull,and that is actually full of oil going all the way of the keel ...w e drilled small holes to clear the oil , and then discovered that there is a actually a drain hole for that.( You can see close up pic)

    Questions:
    1. Anyone knows if the oil there was in purpose?and why

    2. We thought that it might be a place were you could empty oil once you are in sea, and then clear it on drydocking.couldnt find the Insert hole inside the boat


    Any other ideas?

    Thanks a lot
    Noa- LadyD

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  2. JWY

    JWY Senior Member

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    Oil is sometimes used in steel boat boats to fill void areas in order to prevent "open" space allowing for condensation which eventually might cause corrosion from the inside. Another example of this usage is sometimes seen in rubrails such as half-pipe rubrails welded on to the sides but with holes for filling with oil so that the inside of the rail doesn't contain air space.

    Judy
  3. Noa Ramot

    Noa Ramot New Member

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    Thanks a lot for the quick reply.
    Since we drained it after we will fix holes, would you recommend filling it up again?
    Also do you think old used oil will do the work?
  4. CaptPKilbride

    CaptPKilbride Senior Member

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    Since this part of the hull will be exposed to release to the environment should there be a breach, maybe consider filling the void with an environmentally acceptable lubricant?
    http://www.chevronmarineproducts.com/products/lubricants.aspx
  5. Lepke

    Lepke Member

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    Many commercial boats use the keel as a cooler. That way anti-rust additives in your coolant will keep the rust out. Maybe that was how it was originally configured.
  6. Ward

    Ward Senior Member

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  7. 61c40

    61c40 Member

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    If your rudders are hollow they might be oil filled also, I don't think is was for cooling as much as it was for corrosion protection as JWY states in post#2 and possibly for ballest
    Last edited: Nov 18, 2016
  8. K1W1

    K1W1 Senior Member

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    Have you determined what type of oil it is? I was on a Feadship where the closed bulwarks were filled with Fish Oil.
  9. Marmot

    Marmot Senior Member

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    Boiled linseed oil used to be used as it will polymerize to form a corrosion resistant coating. The space is filled to cover all the area then drained to complete the process.
  10. DavidJapp

    DavidJapp New Member

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    Hi Noa
    I am the owner of Tiky (1961) - Do you still have the first Tiky? Id love to receive some photos and I can put you in touch with the Dutch familly of the both the Tikys.
    regards
    David
  11. Capt J

    Capt J Senior Member

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    That must've smelled real great if it started leaking inside of the boat!!!!
  12. DavidJapp

    DavidJapp New Member

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    Tiky has all her keel voids filled with synthetic oil
  13. bernd1972

    bernd1972 Senior Member

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    Oil in hollow welded profile rudders is a reasonable thing as, beeing exposed to the fluctuating flow of the propellers, the rudders would otherwise be a drum and cause unwanted noise.
  14. bayoubud

    bayoubud Senior Member

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    Fill the keel with Propylene glycol with additives to prevent corrosion. Safe for the environment.

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