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  • #16
    Re: Imagine for a moment that cost was not important....

    Originally posted by 3328222A1E232E2F25410 link=1329112945/13#13 date=1329215978
    Reply #13 - Yesterday at 9:39pm Mark & Quote Quote
    Espresso Parts in the states list all the LM group parts (group casting: MZ_202) but it will cost you a small fortune
    Rick, Do you think that is the whole group head or just the body? $400 isnt scaring me (a lot) . I would prefer to pick up an old machine to start with but where?

    Being in Tas makes shipping expensive but for the right machine I suspect I would fly over.

    Do you have a link for the EU site Ronin?

    best regards
    Lee

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    • #17
      Re: Imagine for a moment that cost was not important....

      Youll need a few more bits to make up a complete group, namely the diffuser disc, group cap and bayonet collar, o-rings, washers and internal plumbing. Then youd have to decide where youre putting the brew solenoid - different LM models have it either outboard or integral to the group cap. A complete groups worth of parts will cost rather a lot.

      If you are looking around for a donor machine, keep in mind that the groups of later la marzoccos are TIGd straight to the boiler.

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      • #18
        Re: Imagine for a moment that cost was not important....

        thanks Rick

        Doing a lot of reading re the Marzoccos.

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        • #19
          Re: Imagine for a moment that cost was not important....

          Originally posted by 44454B44495A4D46280 link=1329112945/15#15 date=1329292321
          Originally posted by 3328222A1E232E2F25410 link=1329112945/13#13 date=1329215978
          Reply #13 - Yesterday at 9:39pm Mark & Quote Quote
          Espresso Parts in the states list all the LM group parts (group casting: MZ_202) but it will cost you a small fortune
          Rick, Do you think that is the whole group head or just the body? $400 isnt scaring me (a lot) . I would prefer to pick up an old machine to start with but where?


          Do you have a link for the  EU site Ronin?


          Might be deleted as not a site sponsor, but

          ricambigardosi.com

          Also keep in mind that if you are getting an earlier Marzocco with the groups bolted to the boiler, try and get one with the end plates on the boiler, not welded.

          The welded ones have fewer problems with leaking, but have a good read of the espresso restorations website re the GS2 rebuild Paul Pratt did about reassembling the group retaining nuts. http://www.espresso-restorations.com/GS2-3-2.html

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          • #20
            Re: Imagine for a moment that cost was not important....

            Thanks again Ronin,

            signing up for a catalog

            Do you know off hand the model of the Marzocco that had the flow and control valve on top of the group to limit the temperature fluctuations? There are a lot of models out there and I am still finding my way.

            best regards

            Lee

            Comment


            • #21
              Re: Imagine for a moment that cost was not important....

              Sorry Lee, I cant tell you. Even through out the GS models the internals of the group changed. Not a great deal, but I thought they were the same until recently photos came my way.

              FYI Im still waiting on some parts from espresso parts that were ordered and paid for 7 myths ago. Not happy about that.

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              • #22
                Re: Imagine for a moment that cost was not important....

                Thanks, I will avoid EP.

                I may make the grouphead and boiler, that way I can make some changes, hopefully the bits that bolt on will only add upto around $400, I seen a group quoted at around $700.

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                • #23
                  Re: Imagine for a moment that cost was not important....

                  Lee, when you say
                  the flow and control valve on top of the group to limit the temperature fluctuations
                  do you mean the group solenoid and flowmeter?

                  If so these are located directly on the group cap in GB5/FB80 models, and outboard on copper lines on Lineas. Whether this has any effect on temperature stability is highly unlikely as the water path still travels back through the group before hitting the puck. More of a reason of economics, as the flat Linea group caps are much less complicated to manufacture.

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                  • #24
                    Re: Imagine for a moment that cost was not important....

                    Yes, group solenoid. I have found an exploded diag, just need to see what parts are avail.

                    The gear pump sounds like a good idea, havent found a price yet ...


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                    • #25
                      Re: Imagine for a moment that cost was not important....

                      Hows the searching going Lee?

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                      • #26
                        Re: Imagine for a moment that cost was not important....

                        Still looking for a machine to start with, I want a HX as the output from the HX will feed the brew boiler. Maybe a 2 or 3 group as I will want a lot of room while prototyping.
                        My friend assures me that making the boiler is simple ( he will be doing the welding etc) I was hoping to start out with something running so that I dont have to buy a heap of bits just to get going.
                        The first machine will be the prototype and I will make custom steam boiler after.

                        Looking for a nice gear pump atm, I have some ideas re saturated pump with the motor outside.

                        Not much one ebay etc atm, but I have collected a lot of info.

                        regards

                        Lee

                        Comment

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