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Skippy
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Post subject: Leaky manometer pipe
 Posted: Feb 15, 2012 - 04:20 PM
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Joined: Jul 11, 2007
Posts: 476
Location: shropshire, uk
Status: Offline
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Hi, i just replaced my old bodged manometer pipe with an official one from cimbali but im getting a drip from where the pipe meets the boiler.
I had problems with this when i first got the machine but making a up a pipe from brake line and fitting seemed to solve it but id used standard solder which i was was told was unsafe on a pressurised boiler
Would just using a washer solve the problem? If so, what type? |
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Cimbali Junior D/1, Compak K5.
Paper filters, Kitchenaid grinder.
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RobC
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Post subject: RE: Leaky manometer pipe
Posted: Feb 15, 2012 - 10:10 PM
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Joined: Jan 08, 2005
Posts: 897
Location: Yorkshire, UK
Status: Offline
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| Presuming it's a simple screw fit with floating nut on the pipe, probably the simplest way is some ptfe plumbers tape around the thread on the boiler to get it sealed - most smaller domestic machine manufacturers seem to use a thread locking glue to seal these joints up but I have yet to find a source for the product. |
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Long forgotton Tech and Coffee Equipment guru.
Twitter: @c0ff33a
As I walk through the valley of the shadow of death I take a look at my life and realise there's none left 'Cause I've been brassing and laughing so long that Even my mamma thinks that my mind is gone
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Skippy
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Post subject:
Posted: Feb 15, 2012 - 10:42 PM
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Joined: Jul 11, 2007
Posts: 476
Location: shropshire, uk
Status: Offline
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| Yes, thats the kind of connection. I had tried ptfe around it when i had the probably originally but ill give it another go with this new pipe. Thanks |
_________________
Cimbali Junior D/1, Compak K5.
Paper filters, Kitchenaid grinder.
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Skippy
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Post subject:
Posted: Feb 16, 2012 - 10:33 PM
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Joined: Jul 11, 2007
Posts: 476
Location: shropshire, uk
Status: Offline
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| That seems to have worked, think the thread is a bit dodgy tho, seemed to jump when it was getting tight. |
_________________
Cimbali Junior D/1, Compak K5.
Paper filters, Kitchenaid grinder.
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RobC
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Post subject:
Posted: Feb 16, 2012 - 10:43 PM
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Joined: Jan 08, 2005
Posts: 897
Location: Yorkshire, UK
Status: Offline
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| The existing boiler fitting could have been a little worn from your previous removal and refits, plus the added girth of ptfe will effect the fitting of the threads - if there is no audible hissing during use and after a week no water marks indicating leaking around the joint then you should be good. |
_________________
Long forgotton Tech and Coffee Equipment guru.
Twitter: @c0ff33a
As I walk through the valley of the shadow of death I take a look at my life and realise there's none left 'Cause I've been brassing and laughing so long that Even my mamma thinks that my mind is gone
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Skippy
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Post subject:
Posted: Feb 16, 2012 - 11:17 PM
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Joined: Jul 11, 2007
Posts: 476
Location: shropshire, uk
Status: Offline
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I think the machine was pretty abused before i got it, it arrived to me with the original pipe leaking about 4 years ago. Ive never seen so much dirt in anything before, you do not want to know what the inside of the PF looked like..... *shudders*
Think shes due for a full overhaul again tho, theres some rust on the frame. I did it on the cheap last time as i had to replace pumps and other parts, so no money for powder coating. Would be nice to get it in better than new condition |
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Cimbali Junior D/1, Compak K5.
Paper filters, Kitchenaid grinder.
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Aadje
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Post subject:
Posted: Feb 17, 2012 - 07:39 AM
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Joined: Jan 25, 2006
Posts: 3361
Location: Enschede
Status: Offline
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| Else, get yourself some locktite, that stuff pretty much seals everything. |
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Speedster | SuperJolly | et al.
This week I am mainly still enjoying Ubuntu with Gnome Shell
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Skippy
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Post subject:
Posted: Feb 17, 2012 - 01:46 PM
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Joined: Jul 11, 2007
Posts: 476
Location: shropshire, uk
Status: Offline
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| would that stuff work with the heat from the boiler? |
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Cimbali Junior D/1, Compak K5.
Paper filters, Kitchenaid grinder.
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bruceb
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Post subject:
Posted: Feb 17, 2012 - 05:08 PM
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Joined: Apr 04, 2004
Posts: 5050
Location: Northern Hesse, Germany
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| There are a number of flavours of Loctite. Some withstand higher temperatures without problem. It's best to ask at a machine shop or hardware store. However, I would probably not loosen the nut again at this time if it isn't leaking. If the thread really is damaged you might finish it off. |
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Three Francesconi (CMA) espresso machines - Rossi, San Marco, LaCimbali, Faema and 2 Mazzer Major grinders- CoffeeTech Maggionlino, Hottop, Alpenröst and HW Precision roasters.
This week I are pleased with my new grinder and LM baskets. 
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Skippy
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Post subject:
Posted: Feb 17, 2012 - 06:24 PM
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Joined: Jul 11, 2007
Posts: 476
Location: shropshire, uk
Status: Offline
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Would i have to worry about it being food safe? Ill certainly leave it as it is for now, be good to have other options if i do a strip down and rebuild later in the year tho.
I was originally thinking some kind of silicon washer would compress nicely and form a good seal, would that be possible? |
_________________
Cimbali Junior D/1, Compak K5.
Paper filters, Kitchenaid grinder.
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Aadje
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Post subject:
Posted: Feb 17, 2012 - 07:24 PM
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Joined: Jan 25, 2006
Posts: 3361
Location: Enschede
Status: Offline
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That would be possible I guess, a copper washer or a teflon washer might also do the trick.
about the loctite, iirc Kees van der Westen uses Loctite 542 (Hydraulic Sealant, medium strength). I used Ergo 4202 for the Speedster, which is a cheaper brand but equivalent to loctite 542.
edit: typo and additional info |
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Speedster | SuperJolly | et al.
This week I am mainly still enjoying Ubuntu with Gnome Shell
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Skippy
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Post subject:
Posted: Feb 17, 2012 - 10:46 PM
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Joined: Jul 11, 2007
Posts: 476
Location: shropshire, uk
Status: Offline
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| Thanks very much |
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Cimbali Junior D/1, Compak K5.
Paper filters, Kitchenaid grinder.
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