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Espresso Machine tune up - Adelaide

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  • Espresso Machine tune up - Adelaide

    As an engineer type - I have an irresistable urge to tinker with things (to the annoyance of my family at times). I have a PID enabled Silvia (which is wonderful) and recently "tuned" it up.

    Ive re-set the pressure. Improvement.

    Ive fiddled with the PID temperature setting to get 94C brew temperatures. Improvement.

    So I have a 21bar (actually 21 kb/cm2 - but close enough) gauge with 3/8 BSP adaptor and a portafilter with a K-type thermocouple in it. Since Im not in the business of tuning peoples espresso machines, I figured Id put them both in a box and leave them with Mark Barun (The Coffee Barun) for fellow SA snobs to borrow on an honour basis. Mark is happy to do this - but is there any interest?

    Thisd be in January 2008 - Im going to be a bit busy for a while now. All youd need is a multimeter that takes a temperature probe (all the affordable ones take K-type Tcouples). For the totally deprived SA snobs, I might even be able to loan a multimeter, but would prefer not to.

    Id also be happy to print out some instructions of a sort (although it is pretty obvious how-to).

    If there is no-one in SA who wants/needs this, Ill just put them in a box in the shed.

    Any suggestions?

    /Kevin

  • #2
    Re: Espresso Machine tune up - Adelaide

    Hi Kevin,

    I would be interested to check the pressure on my Silvia with PID.

    Regards

    David

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    • #3
      Re: Espresso Machine tune up - Adelaide

      If the portafilter would fit my VBM Id love to tweak (or at least measure) the water temp.

      Anybody know about the PF?

      Greg

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      • #4
        Re: Espresso Machine tune up - Adelaide

        OK - the basket is a standard LM double basket. 58mm, ridged.

        You need a naked P/F to get the probe through. The pressure gauge just needs a 3/8"BSP thread. The spout normally just unscrews..


        /Kevin

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        • #5
          Re: Espresso Machine tune up - Adelaide

          Originally posted by KJM link=1228715028/0#3 date=1228800338
          OK - the basket is a standard LM double basket.  58mm, ridged.

          You need a naked P/F to get the probe through.  The pressure gauge just needs a 3/8"BSP thread.  The spout normally just unscrews..


          /Kevin
          Kevin,

          Id be interested, but Im in Brisbane.

          Im curious how you have attached the probe to the filter basket. And do you have some sort of flow adjustment on it? Any photos? Id been thinking of building something similar myself.

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          • #6
            Re: Espresso Machine tune up - Adelaide

            Sounds good to me--thanks. I can arrange for all that.
            Please let us know if/when youve made it available.
            Greg

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            • #7
              Re: Espresso Machine tune up - Adelaide

              Sounds a great idea Kevin. Id even suggest those who benefit might (at no obligation) like to leave KJM a nominal fee for the benefit of such - I for one would be happy to drop a few bob for a loan of such a kit and itd be cheaper than all of us going out and buying the parts ourselves.

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              • #8
                Re: Espresso Machine tune up - Adelaide

                Bill - I just drilled a hole through the bottom of the portafilter basket. To make a measurement, one is required to sacrifice about 18g of ground beans!

                I use a bead type T/C junction, so it is very wee - it fits through a 2.5mm hole in the basket. Then end that goes to the multimeter is, naturally, rather a bit bigger which is why it needs to go through a naked handle.

                I will take some pictures, but Im going away for the weekend, so next week!

                Greg (Pullman) - KJM is not looking for donations!!! It is just that I have this stuff and while I will use it again, it wont be everyday. Seems to me others could get a benefit. It really is a piece of kit youd probably prefer to borrow rather than buy - adjustments of even the most cheesy espresso machine would probably not go out of whack inside 6 months! (He says, with absolutely no data to back that claim up with...).

                One day Ill make it to the Adelaide pickup at the same time everyone else does, and anyone feeling they must could buy me a coffee from Mark. Thats about my acceptable limit!

                Cheers
                /Kevin

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