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EM6910 rebuild or replace?

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  • EM6910 rebuild or replace?

    I replaced the collar in my EM6910 not that long ago, and it has lasted a disappointingly short time, much shorter than the original one.
    I need some advice on whether to do the whole procedure again or to replace the machine.
    It's already on it's second steam pump, on/off switch. The collar is the only current issue.

    The collar has the step marks on it again, and most of the time unlocks itself when pouring, unless you hold it in.

    I'm siding towards repairing it again, but replacing the group head, seal and collar all at the same time. I'm on my original group head, and the seal was changed not that long before the collar, but I'm wondering as it was an aftermarket one, whether that made the new collar go out of whack quickly?

    I bought the collar from bigwarehouse, it seemed genuine, is there a better place to buy to ensure genuine parts?

    Should there be anything else I need to replace to ensure longevity?

    Thanks

  • #2
    How are the lugs on your portafilter?

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    • #3
      Very similar situation here. Replaced collar about 9 months ago. Good for about 6 months, then leaking. Replaced group seal as I was locking the group handle at about the 4.30-5 position. Good for about a week (locking in at 6 o'clock) but then again the seal blowing out while attempting to pull a shot. Fashioned a spacer (that you can no longer get from sunbeam :-( ) out of a plastic from a milk bottle. Good for about a week, locking in at 6 etc, then seal blowing out. Might try a spacer made from teflon or gasket material.

      One thing I did notice when I replaced the collar was that I had to reduce the amount of ground coffee I put in the basket - seemed the new collar required the port filter to lock in higher up in the group. I have to dose so little that when I tamp, the tamp hits the basket where it tapers in (always use the double basket) so I'm really only half filling the double basket.

      TBH I'm getting rather tired of all this mucking about and am starting to consider replacing the machine. Don't know if I'd go with another Sunbeam due to these issues. Do all machines have these sort of ongoing problems - collars, seals, spacers etc? If I went nuts and bought a high end machine I would hope that I never have these issues (apart from having to replace the seal every 12 months or so - am I dreaming?

      Thanks.

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      • #4
        Glad it's not just me! I've had issues since replacing collar about 9 months ago (and haven't even been using this machine as much since then). The group handle doesn't like staying in position and I find I am holding it there when pulling a shot. If I don't, it just unwinds itself and "pffts" everywhere.

        Thanks for the hint about the coffee though...I will experiment and try dramatically reducing the amount and work backwards from there. I was wondering whether a new group handle would help? I'm not familiar with these "spacers"...where/how do they fit in?

        I played on a Giotto today. Wow...what a difference....that will help you make up your mind about whether to persevere with the Sunbeam! Now I just have to work out how to pay for one.

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        • #5
          Originally posted by BERVY View Post
          Do all machines have these sort of ongoing problems - collars, seals, spacers etc? If I went nuts and bought a high end machine I would hope that I never have these issues (apart from having to replace the seal every 12 months or so - am I dreaming?
          Thanks.
          Evening Bervy,

          In answer to your question, I bought a Silvia about 13 years ago, in the 10 years I owned it all I did was change a few group head seals and descale/back flush it regularly, it was still running like new when I sold about 3 years back, replaced it with a Bezerra Domus Galatea, same experience as Silvia, have replaced one seal and descale/back flush it regularly.

          I've found the better brand name Italian machines to be very reliable, add to this the fact that there is a wealth of knowledge among the sponsor/specialist retailers available if needed, this simply doesn't exist with appliance manufacturers and retailers.

          Yep, I like Italian machines.

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