Pushed in Pump, Fount Repair

Discussion in 'Fettling Forum' started by ROBBO55, Apr 28, 2019.

  1. ROBBO55

    ROBBO55 Subscriber

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    I hadn’t tried it before but this is how I repaired the fount on this Austramax 3/300
    As you can see the pump has been pushed in and dented the fount badly.

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    First I threaded the end of a rod and centred it to help manipulate the pump tube.

    2.jpg

    Then unsoldered and removed the pump.

    3.jpg

    To be able to apply the necessary force without damaging the font I screwed the font to the bench using a piece of plywood. The ply sits on lip of the fonts skirt leaving a gap between the ply and the bench.

    4.jpg

    There were 2 main problems:

    1. Getting something inside the font that was curved and large enough to pull the dent out.
    2. Applying enough pressure to pull the dent out.

    Looking around the shed at my raw materials (crap) I came up with these devices. First the round one was a firm plastic foot from a piece of electrical equipment. It could be bent and fitted through the pump hole. The other was a piece of aluminium bent into a curve. Both were fitted with 6mm (¼’) bolts.

    5.jpg
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    18’ of angle iron pivoting on the edge of the bench gave the necessary controlled force required.

    7.jpg

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    The round tool pulled most of the dent out but left a ring near the outer major crease. The aluminium tool was used to smooth out the creases.

    Not perfect but a lot better than it was.

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    Re tinned the soldered surfaces then positioned the pieces ready for assembling.

    11.jpg

    Soldered and cleaned up.

    12.jpg

    13.jpg

    I’m happy with the result and hope this gives others ideas.
     
  2. Mr cod

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    That's what I call using your initiative, very well thought out.
     
  3. JEFF JOHNSON

    JEFF JOHNSON United Kingdom Subscriber

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    Well saved!:thumbup::thumbup:

    I have heard of dents being removed by filling the tank with water and sealing off all of the apertures and then leaving the tank in the freezer overnight and when the water freezes it expands and shoves the dents out.
     
  4. phaedrus42

    phaedrus42 Subscriber

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    Brilliant, Martin! You did an amazing job.
     
  5. Sellig33

    Sellig33 France Subscriber

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    I agree with Phil, amazing job !!!
    I've the same problem on my Optimus 1200 and my Petromax 821 Baby
     
  6. george

    george United States Subscriber

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    Amazing!! EXCELLENT job. Great idea and using only "junk" parts to achieve success. They say, "necessity is the Mother of invention", and how true!!
    :clap:
     
  7. Tony Press

    Tony Press Australia Subscriber

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    Martin

    :thumbup::thumbup::thumbup:!

    Lucky you haven’t cleaned that shed up yet.

    Cheers

    Tony
     
  8. ROBBO55

    ROBBO55 Subscriber

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    Thanks gentlemen for your kind remarks.
    @Mr cod , @phaedrus42 , @Sellig33 , @george

    Thanks Jeff, I have read that to but I seem to remember you have to check it regularly. Left in the freezer to long can turn it into a ball :-&
    I haven't been game enough to try it yet.

    Tony, Perish the thought!!! If I cleaned out the shed I'd have nothing to do.](*,)
     
  9. AussiePete

    AussiePete Australia Subscriber

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    That’s so well done ...... ingenuity and initiative come together.
    Cheers
    Pete
     
  10. Tony Press

    Tony Press Australia Subscriber

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    Martin

    I’m led to believe that the best way to do the water trick is to fill the item 2/3 full; freeze; then add the rest of the water and re-freeze. Of course you leave the dent in the last part of the operation.

    I’ve not done this myself...

    Cheers

    Tony
     
  11. AussiePete

    AussiePete Australia Subscriber

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    I have done this and it works.
    You gotta be quick though coz the expansion is surprisingly rapid.
    The 2/3 fill and freeze helps stop the base from bulging down or deforming when the last 1/3 is put in and re-frozen. As you can see, it works great for dents and dings on or towards the top of the fount.
    Cheers
    Pete
     
  12. ROBBO55

    ROBBO55 Subscriber

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  13. lungshiwu

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    EXCELLENT!!!!!
     

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