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Espresso: Lever Espresso Machines
Conti LM3
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Discussions > Espresso > Lever Espresso > Conti LM3  
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greenlyr
Senior Member


Joined: 6 May 2013
Posts: 5
Location: Quincy CA
Expertise: I love coffee

Posted Thu Jun 20, 2013, 1:48pm
Subject: Conti LM3
 

Anyone out there with a three pull Conti.(LM3) I could use some insight on tamp. grind and maybe steam pressure coming out of the machine. All three of the stations pull a different shot and I"m not getting the creme I would like even though I am getting good "pucks" out of the perma. I'e tried the 30 pounds with a coarse grind, and keep making the grind finer until it won't pull. I'm wondering if the pressure is not high enough. Help.
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drgary
Senior Member


Joined: 21 Jan 2010
Posts: 141
Location: San Francisco
Expertise: I love coffee

Espresso: Baby Lusso Caravel Coffex...
Grinder: Pharos, Rio Super Jolly,...
Vac Pot: AeroPress
Drip: Melitta
Roaster: Heat Gun/Bread Machine,...
Posted Sat Jun 22, 2013, 7:09pm
Subject: Re: Conti LM3
 

Is that a lever or pump machine. If lever Conti Prestina user experience thread on HB may help. Maybe springs are worn differently and seals too.
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greenlyr
Senior Member


Joined: 6 May 2013
Posts: 5
Location: Quincy CA
Expertise: I love coffee

Posted Sat Jun 22, 2013, 8:07pm
Subject: Re: Conti LM3
 

Thanks drgary, it is a lever, the previous owner rebuilt it and one spring was replaced, the others not. The seals are all new 1 1/2 years old now. Is there a way to adjust pressure or at least know what is the correct pressure?
I have spoken to the person who sells us our coffee and he told me not to worry too much about 30 pounds of tamp etc, he said it was more important to have a well shaped puck when done. I feel like we are not getting the creme that I have seen on some of the videos, and just want the best we can do.
Is your machine lever?  If so, how long before you release the lever, we have been letting it build until the "tail" begins to slow down.
Any advice would be appreciated.
Rick
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drgary
Senior Member


Joined: 21 Jan 2010
Posts: 141
Location: San Francisco
Expertise: I love coffee

Espresso: Baby Lusso Caravel Coffex...
Grinder: Pharos, Rio Super Jolly,...
Vac Pot: AeroPress
Drip: Melitta
Roaster: Heat Gun/Bread Machine,...
Posted Fri Jun 28, 2013, 8:14am
Subject: Re: Conti LM3
 

Rick:

Probably the first thing to do is replace the other two springs with new ones. They aren't expensive and are available at Conti service centers like Allann Brothers Coffee. Adjusting dose and grind with precision are essential with any espresso machine. Distribution is more important than tamp but tamp also helps. A quality espresso grinder with relatively new burrs is essential as are fresh beans that aren't over-roasted. My Conti lever has the same group as yours unless yours is very antique. If when you take the cover off there are a lot of brass pivots on the top of the lever it is the current group. To see more about this here are some threads (sorry about referring to the other site -- I don't know where to find the extraction guides on CG):

How to adjust dose and grind setting by taste: Click Here (www.home-barista.com)

Conti Prestina Restoration: Click Here (www.home-barista.com)

Conti Prestina Owner Experience: Click Here (www.home-barista.com)

Perfecting the Naked Extraction: http://www.home-barista.com/naked-extraction.html
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