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Thread: How should I deal with this corrosion? (Nuova Simonelli Musica)

  1. #1
    Member lindsayward's Avatar
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    How should I deal with this corrosion? (Nuova Simonelli Musica)

    I decided to open up my recently-purchased 2nd hand Nuova Simonelli Musica, and found significant corrosion...
    What should I do about this?
    IMG_5930.jpgIMG_5929.jpg
    And does this imply that I should consider descaling it?

    Also,
    The date on the information panel is November 2011 and it has a "Campini" pressurestat. Apparently newer ones were shipped with Sirai ones. (My pressure gauge sits at the top of the range, 1.5 bar.)
    I have read the discussion at https://coffeeforums.co.uk/showthrea...nted-features-) and they talk about some older machines not having "giglers" (or "gigleurs"), which are for reducing flow and temperature I think. Does anyone have any experience with this and whether there are any things I should consider to improve my new old machine?
    Thanks!

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    I would treat the white stuff. Now I am not sure whether it would clear with an acid or an alkaline. You could try bicarbsoda as you would ona car battery terminals, or critic acid. Wait for better advice. A chemical clean back to the metal then spray with INOX to seal the moisture away may make all good again.

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    Mal Dimal's Avatar
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    I'd also replace the Heating Element Gasket while you're at it.
    Most likely the source of the trouble in the first place.

    Mal.

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    Member lindsayward's Avatar
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    Thanks for the replies so far. I'm keen to hear any more input on this.

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    Member lindsayward's Avatar
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    Hi. I'll ask some local (Townsville) service people, but would also like to hear more from any of you here, thanks

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    Member lindsayward's Avatar
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    I'll update with photos soon, but first:
    My machine does not have the giglueurs (or giglers, gicleurs or flow restrictors) fitted, and I would like to do this.

    Does anyone know where they can be bought in Australia? (I've only seen them listed on overseas websites.)
    Also, has anyone ever installed these themselves? (I'd like a little more detail about where each one goes.)
    Thanks.

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    Member lindsayward's Avatar
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    So here's my progress with cleaning this up. Not a small job, but looks like I've made a bit of a difference
    IMG_6064.JPGIMG_6067.JPGIMG_6068.JPGIMG_6066.JPG
    Yelta and level3ninja like this.

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    Member lindsayward's Avatar
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    I have ordered the gigleurs and some o rings from Elektro's in Italy, and I can see how/where they go.
    Interestingly, I eventually heard back from the Aus distributor for NS who would have cost me $44 for 2 gigleurs + 1 o ring delivered, when I paid $26 from Italy.

    Now to clean up and coat some rust on the frame...
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    Member lindsayward's Avatar
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    I was asked for tips with cleaning up my Musica, so...
    I'd suggest taking lots of photos as you go - both close up and also further back so you can see things in context. I took lots, but sometimes I went to refer to photos and found I hadn't taken enough.
    The standard coffee descaling solution I used worked great. I also used steel wool and other things.
    While I had it apart, I also adjusted the tank empty sensor down a bit so the tank had less water in it when it cut out, and I adjusted the power cord so it went left instead of right to suit my power outlet position. Small things, but nice.

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    Lindsay have you progressed with the Tuning of your machine / Retro fitting Gicleur?
    Any experiences or observations that you can post?

  11. #11
    Member lindsayward's Avatar
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    Sure. Adding the gicleurs was simple when I had the head off for cleaning. I can't say I'm attuned enough to able to tell the difference personally, but I trust that it's better now

    I decided not to replace the Campini pressurestat... until I put it back together and discovered it was broken. This discovery also taught me how the safety valve works! I was actually pretty scared when I heard the explosion of steam from the un-regulated boiler! ... especially after all my work cleaning it up. So I fitted the Sirai pressurestat and it was right in the middle around 1.3 bar. No worries.

    I'm considering whether an adjustable OPV would be a worthwhile investment.

    I've since fitted an automatic timer display a la Matt Hellyar (nsmusicamods) on Instagram. I have had it working, but it has died. I think the 240V-12V transformer I have connected to the brew head solenoid isn't up to it and has failed.
    I'm toying with the idea of adding a tank level meter (ultrasonic sensor, Arduino and LCD), but it's not trivial and one of the issues is deciding how/where to mount the display - since the Musica looks so nice and has curved surfaces.

    I've had the covers off a fair bit since getting it all working again and there's no sign of the corrosion returning, which is nice.

    Oh, and people visit me just to get coffee now, so it must be doing pretty well
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  12. #12
    Senior Member Yelta's Avatar
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    Quote Originally Posted by lindsayward View Post
    So here's my progress with cleaning this up. Not a small job, but looks like I've made a bit of a difference
    IMG_6064.JPGIMG_6067.JPGIMG_6068.JPGIMG_6066.JPG
    "bit of a difference! I would say a vast difference, well done.

    Did you check the boiler for pin holes?

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    Your boiler is much more technicolour than mine.
    Kinda wrong that i know where all the bits in the icecream bucket go.

    Nice job!

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    Member lindsayward's Avatar
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    It was a bit scary at first... I hoped I would be able to get all the bits from the ice cream bucket back into place, but I managed and it was good to learn a lot more about it.

    Yelta, I didn't check for pin holes but it's been fine so I presume it's all OK.

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