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Espresso: Espresso Mods and Restorations
Carimali UNO Restoration
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mcmurray
Senior Member


Joined: 14 Aug 2013
Posts: 2
Location: Gold Coast, Australia
Expertise: I love coffee

Espresso: Carimali Uno
Posted Sat Aug 24, 2013, 8:01pm
Subject: Carimali UNO Restoration
 

Hi all,
I have a Carimali UNO from 1987 that is in need of some restoration. I have completely disassembled the machine (with many pictures) and now need to remove the boiler element so as to install a new one.
In addition to the boiler element I also disassembled the group head and will be replacing the O -rings - I have a question that refers to the part in the image below that comes from the group head and seems to be made of chrome plated brass but after cleaning it it is now mostly just brass and my question is whether I simply should have it re-chromed or not?

If anyone has restored a Carimali UNO I would really appreciate any advice - I will have some more questions once I locate someone with UNO experience.

John

mcmurray: image.jpg
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matster
Senior Member


Joined: 24 Aug 2013
Posts: 4
Location: Lake Havasu City, AZ
Expertise: I love coffee

Espresso: Faema E91 diplomat 2group,...
Grinder: Mazzer super jolly
Posted Sun Aug 25, 2013, 12:22pm
Subject: Re: Carimali UNO Restoration
 

Hello  there, Sorry I dont have any experience with your UNO,however I have descaled my share of machines and at times considered having parts re plated, up to you, I would have if I had the resources to do so. Also, depending on the strength of your cleaning solution and how long you soak, it is very common for the nickle plating to etch off, especially on a well used machine where the plating is generally thin from use. Sometimes and I'm not sure exactly how it happens but if you let pieces soak for an extended amount of time, the tiny brass or copper particles in the solution will attach over the top of the nickle. When that is the case I use a fine scotch bright pad and scrub it off. Its a pain to do so I generally try to use the least amount of effective soak time, especially on group heads and valves that you can see when the machine is together. Good luck on your resto and have a great time with it!
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mcmurray
Senior Member


Joined: 14 Aug 2013
Posts: 2
Location: Gold Coast, Australia
Expertise: I love coffee

Espresso: Carimali Uno
Posted Sun Aug 25, 2013, 3:15pm
Subject: Re: Carimali UNO Restoration
 

Thanks matster - much appreciated. It's good to know that it might be nickel - anyway I will take it to a plating works and ask them what they think - they should know what is best to do. I also plan to get some of the internal brackets re-plated with that gold look nickel plating.

John
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crazy4espresso
Senior Member
crazy4espresso
Joined: 19 Jan 2008
Posts: 147
Location: Toronto
Expertise: I love coffee

Espresso: Silvia, La Pavoni...
Grinder: Pharos
Posted Thu Aug 29, 2013, 6:55am
Subject: Re: Carimali UNO Restoration
 

Chances are that was nickle plated, if it's inside the group head, and not chrome. That piece won't be visible, correct? I wouldn't bother plating it.
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