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Thread: La Cimbali M28 Select - restoration

  1. #1
    Junior Member
    Join Date
    Mar 2020

    La Cimbali M28 Select - restoration

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Decided to buy a used one, to restore, as a project during the Covid-19 lockdown.
    Never worked on any espresso machine before.

    Wondering if anyone could point me in the right direction.

    I turned it on, heard a long beep and it started heating in setting 2.
    Setting 1, filling up, was skipped since the boiler appeared full.
    The boiler got really hot, started boiling the water, and I heard it turning off (a click so solenoid probably).

    Then I could use the steamer and the hot water function.
    The group heads only gave very little hot water and did so intermittently.
    Based on searching this forum, this is because I don't have the water intake connected to the tap.
    Currently, for testing, the stainless steel flexi hose sits loose in a filled bucket and is therefore missing the needed positive pressure.
    I'll order a quick fit for garden hoses to connect the machine with my sink faucet in an attempt to solve this.

    After using the hot water function a couple of times, the light for refill went on and I heard the pump trying to get water.
    I turned it off a bit later, because running the pump dry probably isn't the best idea.

    All, to me, seems normal up until this point.
    However, the boiler pressure gauge read 0 bar.

    I found that unlikely, and think the problem might be a faulty gauge.
    After disconnecting the guage, and opening it up, some gunk fell out when I pressed the 'lever' and rotated the dial.
    The problem is that it now sits at about 0.8 bar, for no apparant reason, even when completely disconnected.

    > Is the spring in the gauge worn after 20 years and therefore not returning to 0? Should I order a new one or can it be fixed?
    > No doubt my assessment isn't quite right, so any feedback is very welcome!

    You can see a picture via this link:

  2. #2
    Mal Dimal's Avatar
    Join Date
    Oct 2004
    Warwick, QLD
    Something that may be of assistance, is our repository of documentation located here...

    Hope it helps,

  3. #3
    Junior Member
    Join Date
    Mar 2020
    Quote Originally Posted by Dimal View Post
    Something that may be of assistance, is our repository of documentation located here...

    Hope it helps,
    Thank you!
    I had already found it.
    Dimal likes this.

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