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Thread: Anti Suction Valve Leak

  1. #1
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    Anti Suction Valve Leak

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Just finished my first test run of my M27 Start. All seems to work O.K. except for a very small but constant leak/hiss from the anti suction valve. I will remove and inspect for the cause, but what does this valve actually do? P.S. love the "dry" steam this machine makes!

  2. #2
    Mal Dimal's Avatar
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    Re: Anti Suction Valve Leak

    Heaps of info to be found by searching the forum "ento".... Try searching with keywords "anti-vacuum" and see how you go.... :)

    Mal.

  3. #3
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    Re: Anti Suction Valve Leak

    Thanks Mal, a wealth of information there alright. It seems the small "leak" I have noticed is relatively normal on this type of machine. I had expected a bit of a splutter at start up, but not an almost continuous tiny outflow. Any comments from owners of (older) La Cimbali machines regarding the output from this valve would be appreciated.

  4. #4
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    Re: Anti Suction Valve Leak

    ento,

    It needs a kit put in it....

    The antivac valve on an LC should splutter at start up - as you suggest.

    It should then seal totally (nothing coming out at all)... either the seat is damaged or corroded... or if you are lucky.... just the O ring will need replacement.

  5. #5
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    Re: Anti Suction Valve Leak

    Thanks for that info. I will remove it & inspect the damage -everything else has been in amazingly fine fettle, so hopefully an o-ring will remedy it.

  6. #6
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    Re: Anti Suction Valve Leak

    JavaB exactly right as usual. O-ring was as hard as nails and broke apart when removed. Seat has very minimal surface deterioration, I am certain it will easily seal when under boiler pressure. Now I need to complete the permanent plumbing hook up so testing/tasting can resume!

  7. #7
    A_M
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    Re: Anti Suction Valve Leak

    Quote Originally Posted by 666D776C030 link=1232432466/5#5 date=1232618824
    JavaB exactly right as usual.
    :o


    What do you mean by this.... :-?

    Usually = implies that it may not always be so.

    When have we ever known JavaB to be wrong ;)

  8. #8
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    Re: Anti Suction Valve Leak


    USUAL: accordant with usage, custom, or habit : normal

  9. #9
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    Re: Anti Suction Valve Leak

    Semi permanent plumbing done, and machine up & running. May be a small leak from the hot water valve as I have noticed a drip which seems to come and go irrespective of valve usage. Functionally though the machine is brilliant, makes a great long black virtually every time on both the single and double baskets, and the misses are always obvious in cause - (new beans, small grind change needed is usually the problem). Now, I just need to tame the steam/milk interface........

  10. #10
    Super Moderator Javaphile's Avatar
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    Re: Anti Suction Valve Leak

    Behmor Brazen - $249 - Free Freight
    Leaks from the steam valve and hot water valve are cheaply and easily fixed with a rebuild kit. :)


    Java "Loves his Cimba!" phile



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