Cleaning Help. Ultrasound machine???

Discussion in 'Fettling Forum' started by Brian Whyte, Jul 30, 2018.

  1. Brian Whyte

    Brian Whyte United Kingdom Subscriber

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    Hi folks.

    Cleaning up a very dirty Optimus 8R and it's really black. My usual citric acid bath isn't moving it. Tried a bit steel wool and it's very slow.

    So, if I use my ultrasound machine everything will smell of fuel!! Can I use a small metal cup and put jet etc into it? not sure if it will work!

    Also taken the wick out of the fuel tube and the brass gauze is stuck inside. I tried blowing through with finger over regulator hole and no air comes out at all. I'll try the blow torch and quench method and see what happens.

    Thanks in advance.
     
  2. Rickybob United Kingdom Banned

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    interesting idea - I am thinking perhaps a small ziplock bag with the jet and hot water and some detergent immersed in the tank might work
    I will give it a go later on and see if it works
    rigid container - probably not going to work
     
  3. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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  4. Rickybob United Kingdom Banned

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    tried it with the ziplock bag

    ziplock3.jpg
    gungiest item I could find - it did work but slower than normal

    ziplock4.jpg
    if it works with glass and plastic will it work with metal?
    I will give that a go next
     
  5. Rickybob United Kingdom Banned

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    my dumb has never been so founded
    an old optimus aluminium pot and an old optimus alky burner and I can see the dirt coming out

    ziplock6.jpg
    slower than usual though - the ultrasonic waves do indeed go through a metal bowl
    having said that this is a 400W machine with eight 50Watt transducers buzzing away - I use it to clean paslodes
     
  6. Brian Whyte

    Brian Whyte United Kingdom Subscriber

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    cheers folks. I'll give it a try. the heating up cherry red worked a treat and was a lot cleaner BUT I held onto the threaded part of burner and squished the threads!!!!!!!!!!!!!!
     
  7. Rickybob United Kingdom Banned

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    the proof of the concept

    proof.jpg
    they both came out cleaner but I better get some oil on the steel bits before they rust away
     
  8. Brian Whyte

    Brian Whyte United Kingdom Subscriber

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    @Rickybob glad my misfortunes helped:) I've just got the wee Aldi/Lidl job but I'll try later on the jet etc. Thanks very much.
     
  9. Simes

    Simes Subscriber

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    @Brian Whyte, recommend the Aldi one for parts that fit. Have to admit not used mine for a while but it does do a job ok.
     
  10. Tony Press

    Tony Press Australia Subscriber

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    @Brian Whyte

    Have you tried a thread cleaner to restore your thread? Or even a very fine file?

    Tony
     
  11. Brian Whyte

    Brian Whyte United Kingdom Subscriber

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    @Tony It's the internal thread of the burner head and it's............well past it!!! Looks like it was badly cracked before and straightening just made it worse :(
     
  12. Colin Geer

    Colin Geer Subscriber

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    Try a strong Alkaline detergent and a toothbrush, that's always worked wonders for me.

    I would suggest using a bath of vinegar but someone will call me an idiot and tell me my parts will dissolve into a brass coloured gooey mess (they won't btw!) and stress cracks will turn the beloved part into a jigsaw puzzle with an infinite number of pieces.
     
  13. Brian Whyte

    Brian Whyte United Kingdom Subscriber

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    @Colin Geer the heating cherry red worked wonders :) Just me being cack handed with the pliers!!!!!!! I have another stove to try so I'll try the ultrasound too.
     
  14. Tony Press

    Tony Press Australia Subscriber

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    @Colin Geer

    Using vinegar (or citric acid) is fine as long as you are around to keep an eye on it (especially the stronger the solution is). I know from bitter experience that leaving something in vinegar that is somewhat delicate and hard to
    replace, then getting called away and forgetting it, can lead to sadness...

    Cheers

    Tony
     
  15. snwcmpr

    snwcmpr Subscriber

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    And then a rinse in a baking soda solution to neutralize.
     
  16. Brian Whyte

    Brian Whyte United Kingdom Subscriber

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    @snwcmpr @Tony I've used citric before and had that horrible copper bloom. I'm a bit shy of it now and there were a few really black bits but I didn't want to leave them in too long. Ill try ultrasound :)
     
  17. snwcmpr

    snwcmpr Subscriber

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    It is just like cooking. Not too long.