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Discussions > Coffee > Machines > Rubber gasket...  
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PJK
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PJK
Joined: 21 Jan 2002
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Location: Shingle Springs CA
Expertise: I love coffee

Espresso: Rancillo Silvia, Tonic...
Grinder: Modified Rocky, Elma side...
Vac Pot: Old Silex
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Posted Mon Jul 29, 2013, 7:15pm
Subject: Rubber gasket Help from Vacuum Pot Gurus
 

A long time ago I bought a Silex vacuum brewer off of eBay.  All I was able to make with it was a mess. The rubber gasket which is supposed to seal the top glass chamber to the carafe is hard and therefore can't provide a good seal. I'm thinking that is the bulk of my problem.  I figured I would deal with it later and stashed it. Today while looking for a stashed group head gasket for my Silvia which is long overdue I found both pieces. I had figured that I would have to make a plaster mold of the Silex gasket and cast a new one using silicon rubber. I may someday have to do that, but looking at it today I find it to be a bit flexible. While the Silvia gasket has never been used it is hard and I installed one from the same vintage about five years ago and it was only marginally satisfactory then.  I don't imagine the one which I have has improved in the past five years.  The plan is to dump both parts into some hydraulic brake fluid for a few days and see what happens. It did wonders for a rubber mat from my old Rec-O-Kut turntable.  

The Silvia part is available and I will get a new one soon when I order a bunch of parts for the Silvia. It is over ten years old is due for restoration and PID installation.

I'm hoping for the best with the brake fluid but it would be comforting to know that I can get a replacement Silex part.  The part number on the Silex part is:  P-251 A  and it has patent number of: 2032317 .

I know folks love these machines.  Does someone make the rubber part?

Phil

 
Philip J. Keleshian
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frcn
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frcn
Joined: 23 Dec 2001
Posts: 3,404
Location: Northern California
Expertise: Professional

Espresso: Vibiemme Domobar Double
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Vac Pot: Hario, 2 Cory pots, 1 Cory...
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Posted Mon Jul 29, 2013, 8:09pm
Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
 

There were [at least] two sizes- the wide neck and narrow neck. There is a company making and selling the narrow one in silicone. The wide has not been available.

http://www.siliconegear.com/silex-small-mouth-gaskets.html

 
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PJK
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PJK
Joined: 21 Jan 2002
Posts: 2,319
Location: Shingle Springs CA
Expertise: I love coffee

Espresso: Rancillo Silvia, Tonic...
Grinder: Modified Rocky, Elma side...
Vac Pot: Old Silex
Drip: Melitta BCM 4  +Some old...
Roaster: Hottop, Modified Z&D,...
Posted Tue Jul 30, 2013, 9:00am
Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
 

Hi Randy,

Thanks.  That is the sort of thing I'm looking for, except mine is much bigger than that.  They said on their website they will make a mold for other sizes if they can get a commitment for 250 parts.

I'll try to put together all the info which I have and start a string. If I can find 249 more Coffee Geeks with the same brewer there may be a path.

Phil


frcn Said:

There were [at least] two sizes- the wide neck and narrow neck. There is a company making and selling the narrow one in silicone. The wide has not been available.

http://www.siliconegear.com/silex-small-mouth-gaskets.html

Posted July 29, 2013 link


 
Philip J. Keleshian
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CoffeeRon
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CoffeeRon
Joined: 26 Apr 2009
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Location: Tacoma Wa.
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Espresso: Wega Lyra, Europiccola(still...
Grinder: Macap M7D, Pharos, Vario W,...
Vac Pot: Sunbeam CoffeeMaster
Drip: Melita BCM-4
Roaster: FR SR500,B-1600, SC/TO
Posted Wed Jul 31, 2013, 8:55am
Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
 

I believe this is what you're looking for?

http://www.dayseal.com/silex.html
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frcn
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frcn
Joined: 23 Dec 2001
Posts: 3,404
Location: Northern California
Expertise: Professional

Espresso: Vibiemme Domobar Double
Grinder: Mazzer Kony, Baratza...
Vac Pot: Hario, 2 Cory pots, 1 Cory...
Drip: Behmor Brazen, Bunn A10 mod...
Roaster: computer controlled Hottop,...
Posted Wed Jul 31, 2013, 9:39am
Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
 

Great find!
They show all their gaskets here:
http://www.dayseal.com/services.html

 
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calblacksmith
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Roaster: gave it a try, decided no
Posted Wed Jul 31, 2013, 10:57am
Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
 

Just a word of caution, I would not use brake fluid and food prep equipment in the same sentence, just saying ? :D

 
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PJK
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PJK
Joined: 21 Jan 2002
Posts: 2,319
Location: Shingle Springs CA
Expertise: I love coffee

Espresso: Rancillo Silvia, Tonic...
Grinder: Modified Rocky, Elma side...
Vac Pot: Old Silex
Drip: Melitta BCM 4  +Some old...
Roaster: Hottop, Modified Z&D,...
Posted Wed Jul 31, 2013, 12:23pm
Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
 

Hi Ron,

Thanks. That is exactly what I am looking for.  They are a bit more expensive than Silicon Gear ($25 vs. ~$17) but their part is in production.  Andy at Silicon Gear did respond to my e-mail and said he would make a mold but there would be a 250 piece minimum. I was going to try to stir up interest but Dayseal is sure less bother. Maybe soon I'll know what the fuss over vacuum brewed coffee is all about.

Phil

CoffeeRon Said:

I believe this is what you're looking for?

http://www.dayseal.com/silex.html

Posted July 31, 2013 link


 
Philip J. Keleshian
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PJK
Senior Member
PJK
Joined: 21 Jan 2002
Posts: 2,319
Location: Shingle Springs CA
Expertise: I love coffee

Espresso: Rancillo Silvia, Tonic...
Grinder: Modified Rocky, Elma side...
Vac Pot: Old Silex
Drip: Melitta BCM 4  +Some old...
Roaster: Hottop, Modified Z&D,...
Posted Wed Jul 31, 2013, 12:34pm
Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
 

Hi Wayne,

I'm pretty sure you are correct as I understand that brake fluid is toxic.  I think I can wait for the new Silex gasket to come but Miss Silvia is spurting and squirting so I am desperate there. I know that brake fluid is highly soluble in water so I'll give the Silvia gasket a good rinse before installing it.  After the installation I'll do a couple of back flushes. The hope is that any brake fluid which hasn't chemically bonded to the rubber will be removed. I should have paid more attention in my chemistry classes.  I wish I knew this stuff better.

Phil

calblacksmith Said:

Just a word of caution, I would not use brake fluid and food prep equipment in the same sentence, just saying ? :D

Posted July 31, 2013 link


 
Philip J. Keleshian
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CoffeeRon
Senior Member
CoffeeRon
Joined: 26 Apr 2009
Posts: 749
Location: Tacoma Wa.
Expertise: I love coffee

Espresso: Wega Lyra, Europiccola(still...
Grinder: Macap M7D, Pharos, Vario W,...
Vac Pot: Sunbeam CoffeeMaster
Drip: Melita BCM-4
Roaster: FR SR500,B-1600, SC/TO
Posted Wed Jul 31, 2013, 6:18pm
Subject: Re: Rubber gasket Help from Vacuum Pot Gurus
 

Glad to help. I ran across them last year when I was looking for Cory parts :)
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