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Thread: seized duo prop

  1. #11
    Join Date
    Apr 2011
    Location
    Boat- SoF
    Posts
    4,881

    Default Re: seized duo prop

    Read in a classic car forum site , to clean up C.V. joints some folks soak in a bucket of petrol overnight.

    Similar principles ie a solvent dissolving grease .

    Obviously petrol as any inflammable solvent has safety risks .

  2. #12
    Join Date
    Mar 2004
    Posts
    5,930

    Default Re: seized duo prop

    Quote Originally Posted by BruceK View Post
    That old chestnut. Lift the drives into trailer position. Pour boiling water down the splines. I kettle full should be plenty. Video proceedings on your mobile and then offer the mechanic to put it where the sun dont shine.

    Shallow rivers and estuaries have fine silt. This gets into the grease and forms a cement. The more you pull the harder the cement gets. Just melt the grease out of the mixture and give it a few taps.
    Ok, job for Monday, will do as you suggest.
    What is the size of the outer nut ?
    Can i use a big wrench to take the inner castle nut off ?


    And if it does not come off, how about this:
    https://ez-tools.eu/Hydraulic-Gear-P...le-Pump-5-tons

  3. #13
    Join Date
    Dec 2014
    Posts
    520

    Default Re: seized duo prop

    As a suggestion - get a manual puller and a small diy blowtorch.
    Put some tension on with the puller
    Warm the body of prop up on all sides.
    When its hot enough use a piece of wood against the prop and hammer the wood - this combined with the the tensioned puller should shock the prop and get it moving.
    Jon

  4. #14
    Join Date
    Mar 2004
    Posts
    5,930

    Default Re: seized duo prop

    nope still stuck
    puller / heat gun / hot water / shocked with hammer and wood
    the forward prop is stuck, moved a bit, like 2mm, then back in it went when i released the puller

    i removed ring No. 4, pulling prop No. 2
    https://www.marinepartseurope.com/en...-44-38149.aspx

    from the previous owners records last time te props came off was September 2012
    so, i am no engineer, and although i could get hold of a disc cutter, am going to leave this one to the yard to remove
    should i let them have another go at pulling, or do we go straight to the cutter ?
    Last edited by simonfraser; 06-05-19 at 15:24.

  5. #15
    Join Date
    Feb 2015
    Location
    Conwy
    Posts
    3,789

    Default Re: seized duo prop

    Ya, no. On since 2012? That's pushing it some and then smashing the envelope on good practise. How's the anode look?

  6. #16
    Join Date
    Mar 2004
    Posts
    5,930

    Default Re: seized duo prop

    yeh tell me, just been going through the previous paperwork
    not sure what i paid a surveyor for at the time .....
    the ring anode looks like the shield anode, see below
    the trim tab anodes looked normal, as in grey holed eaten, have just replaced those they were fitted on top of AF as was the shield anode ......

    the boat is now on a trailer, in the water one night a week, and has been stored on land in holland / greece or similar for a while
    no evidence of a working / used mains power circuit when i bought it
    so don't know how long it has been in the water for since 2012

    anode 2019.jpg
    Last edited by simonfraser; 06-05-19 at 18:53.

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