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Cimbali Dosatron m31
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nburde
Senior Member
nburde
Joined: 14 Jul 2012
Posts: 5
Location: BOCA RATON

Espresso: M31Dosatron Cimbali
Grinder: Mazzer Major E
Roaster: Joper 3 kilo
Posted Sat Apr 19, 2014, 5:16am
Subject: Cimbali Dosatron m31
 

I have had my machine for 14 years and have serviced it always myself. I had a small steam leak from the one of the main  stream outlet brass fittings, main nut then a brass T piece the leak was between the T and the main nut. I removed both cleaned the treads, now when you re screw them back I cannot get the T to line up with the other connections. Normally no product is used on the treads, what can you suggest.
Thanks
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calblacksmith
Moderator
calblacksmith
Joined: 25 Nov 2007
Posts: 7,881
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Mon Apr 21, 2014, 6:14am
Subject: Re: Cimbali Dosatron m31
 

Flair fittings do not get sealant but I do use it on all other fittings.
As to it not lining up, is it a little bit or a lot? Is it possible that you slightly bent one of the tubes when removing the fitting? Was there any issues when you took it apart?

Me, if it is a slight misalignment, I would simply alter the line to fit and not give it a second thought.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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nburde
Senior Member
nburde
Joined: 14 Jul 2012
Posts: 5
Location: BOCA RATON

Espresso: M31Dosatron Cimbali
Grinder: Mazzer Major E
Roaster: Joper 3 kilo
Posted Mon Apr 21, 2014, 12:07pm
Subject: Re: Cimbali Dosatron m31
 

Thanks for your reply the union brass nut onto the boiler takes the brass T piece both fittings are compression threads.....in the end instead of using lock-tight on the threads i used Teflon pipe tape this stopped the hissing and leak sofar. If it starts again i will use the liquid Lock - tight.
Appreciate your in put
Regards
Neville
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skydragondave
Senior Member


Joined: 18 Feb 2013
Posts: 167
Location: Ontario, Canada
Expertise: Professional

Espresso: Commercial Only
Grinder: Commercial Only
Roaster: Has Garanti HG5
Posted Mon Apr 21, 2014, 3:53pm
Subject: Re: Cimbali Dosatron m31
 

There are two ways you can rectify this situation. You are working with BSPP threads (British Standard Parallel Pipe) which do not have a tapered thread like NPT. Fittings that use this thread depend on the shoulder to make a seal. So to index fittings in the proper position you need to build up the shoulder area to apply the right pressure when the fitting is turned to the position it needs to be. (Elbows that have no shoulder use jam-nuts to provide a rotational stop but that is not the OP's problem)
The cheapest solution is to use copious amounts of premium pipe tape (the type usually dyed yellow or orange) or even teflon rope around the shoulder. This will look like hell, but will work if you apply enough of it.
The better solution is to use NSF-rated pipe sealant, and either copper washers of a selective thickness, or a copper crush washer that contains a soft mechanical packing. Do not use Loctite as it is not foodsafe, and contains VOCs that will impart a weird taste and odour to the water it comes in contact with. You can get the proper supplies at Orphan Espresso or any of the other commercial vendors advertising on this site. Good Luck
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boar_d_laze
Senior Member


Joined: 21 Nov 2006
Posts: 1,338
Location: Monrovia, CA
Expertise: I live coffee

Espresso: La Cimbali M21 DT/1 Junior...
Grinder: Ceado E92; "Bunnzilla"
Vac Pot: Royal Coffee Maker
Drip: Chemex + Kone; Espro Press
Roaster: USRC Sample Roaster
Posted Mon Apr 21, 2014, 4:02pm
Subject: Re: Cimbali Dosatron m31
 

Yellow and orange teflon tape is thicker than white, and "gas" rated.  In any case, make sure to use BSPP, curried potato scented tape instead of ordinary, cauliflower, NPT tape.  If you're not sure, aloo-gobi tape works for all thread types.  

As it is written in the book of Illy:  By your nose shall ye knows them.

Rich
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skydragondave
Senior Member


Joined: 18 Feb 2013
Posts: 167
Location: Ontario, Canada
Expertise: Professional

Espresso: Commercial Only
Grinder: Commercial Only
Roaster: Has Garanti HG5
Posted Mon Apr 21, 2014, 4:52pm
Subject: Re: Cimbali Dosatron m31
 

Rich, if you want to insult me, feel free to email me. Your response does nothing to help the OP resolve their problem.
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boar_d_laze
Senior Member


Joined: 21 Nov 2006
Posts: 1,338
Location: Monrovia, CA
Expertise: I live coffee

Espresso: La Cimbali M21 DT/1 Junior...
Grinder: Ceado E92; "Bunnzilla"
Vac Pot: Royal Coffee Maker
Drip: Chemex + Kone; Espro Press
Roaster: USRC Sample Roaster
Posted Mon Apr 21, 2014, 7:38pm
Subject: Re: Cimbali Dosatron m31
 

skydragondave Said:

Rich, if you want to insult me, feel free to email me. Your response does nothing to help the OP resolve their problem.

Posted April 21, 2014 link

It was a stab at humor, and a gibe at the ridiculousness of varying thread conventions and different levels of teflon tape. Sorry if you thought it was aimed at you; it was not.  But given some of the recent back and forth here at CG, I understand your sensitivity.  

While you've said a few unwise things now and then:  (A) There have only been a very few; (B) Who hasn't?  And (C) the glass  construction of my own house make it unwise to cast stones.  

If I ever email, it won't be to insult you; I'm far more likely to ask your advice about an arcane aspect of commercial machines.

Consider me a friend,
Rich
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skydragondave
Senior Member


Joined: 18 Feb 2013
Posts: 167
Location: Ontario, Canada
Expertise: Professional

Espresso: Commercial Only
Grinder: Commercial Only
Roaster: Has Garanti HG5
Posted Mon Apr 21, 2014, 7:55pm
Subject: Re: Cimbali Dosatron m31
 

boar_d_laze Said:

It was a stab at humor, and a gibe at the ridiculousness of varying thread conventions and different levels of teflon tape. Sorry if you thought it was aimed at you; it was not.  But given some of the recent back and forth here at CG, I understand your sensitivity.  

While you've said a few unwise things now and then:  (A) There have only been a very few; (B) Who hasn't?  And (C) the glass  construction of my own house make it unwise to cast stones.  

If I ever email, it won't be to insult you; I'm far more likely to ask your advice about an arcane aspect of commercial machines.

Consider me a friend,
Rich

Posted April 21, 2014 link

I look forward to an honest conversation with you. If you ever decide to engage in one, you know where to find me.
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IMAWriter
Senior Member
IMAWriter
Joined: 4 Jul 2002
Posts: 5,892
Location: Brentwood, TN
Expertise: I live coffee

Espresso: Bezzera Strega
Grinder: Forte, OE Pharos,...
Vac Pot: Adcraft SS, Yama 8 cup
Drip: Brazen, Kalita, Chemex,...
Roaster: Behmor 1600+, CO/UFO combo
Posted Mon Apr 21, 2014, 8:33pm
Subject: Re: Cimbali Dosatron m31
 

skydragondave Said:

I look forward to an honest conversation with you. If you ever decide to engage in one, you know where to find me.

Posted April 21, 2014 link

Rich, I believe we're dealing with the Mayor of Toronto here.

BTW, I've already reported the troll..not you Skydragon...and it's being dealt with.

Mr Dave NONE, as your name is listed, your statements on another thread, belittling those who care to interact here has me wondering WHY you want to be with us?
Now you include a nasty accusation aimed at another member, one whose knowledge and expertise have been ascertained many times. Who the he!! are YOU?
An anonymous "PROFESSIONAL",. proudly listing his gear as "Only Commercial" yet belittles anyone else who dare seek such equipment themselves without first clearing it with YOU, as if we couldn't possibly be able to figure out how to use it.

FWIW, I'd venture that MOST of us here enjoy the back and forth, a same as i and others do on a sports blog, beer blog, electronics. etc.
If if you learn something relevant to coffee, even better.

You owe Rich an apology. I don't care a fig about your opinion of me. However, your accusation towards Rich was way out of bounds.

 
Rob J (LMWDP #187)
My Music Production web site:
www.robertjason.com
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skydragondave
Senior Member


Joined: 18 Feb 2013
Posts: 167
Location: Ontario, Canada
Expertise: Professional

Espresso: Commercial Only
Grinder: Commercial Only
Roaster: Has Garanti HG5
Posted Mon Apr 21, 2014, 8:41pm
Subject: Re: Cimbali Dosatron m31
 

IMAWriter Said:

Rich, I believe we're dealing with the Mayor of Toronto here.

BTW, I've already reported the troll..not you Skydragon...and it's being dealt with.

Mr Dave NONE, as your name is listed, your statements on another thread, belittling those who care to interact here has me wondering WHY you want to be with us?
Now you include a nasty accusation aimed at another member, one whose knowledge and expertise have been ascertained many times. Who the he!! are YOU?
An anonymous "PROFESSIONAL",. proudly listing his gear as "Only Commercial" yet belittles anyone else who dare seek such equipment themselves without first clearing it with YOU, as if we couldn't possibly be able to figure out how to use it.

FWIW, I'd venture that MOST of us here enjoy the back and forth, a same as i and others do on a sports blog, beer blog, electronics. etc.
If if you learn something relevant to coffee, even better.

You owe Rich an apology. I don't care a fig about your opinion of me. However, your accusation towards Rich was way out of bounds.

Posted April 21, 2014 link

Get lost. You're clearly more concerned with pecking order than you are with truth.
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