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Still need help--  How to fix teflon tube leak in a Oscar ?
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carbonfiberone
Senior Member


Joined: 8 Apr 2013
Posts: 14
Location: seattle
Expertise: I love coffee

Espresso: Rocket Cellini
Grinder: Super Jolly/Baratza Vario
Roaster: Behmor 1600
Posted Sat Jul 27, 2013, 9:50am
Subject: Still need help--  How to fix teflon tube leak in a Oscar ?
 

Hi all
I bought a broken  first gen Oscar a while back.Found out that it needed a thermostat and a small section of wire replaced.So now it's up and running but I have a small leak on two of the white Teflon hoses coming off the two way valve in the upper left hand corner of the machine.I don't see a gland nut or any way the take this fitting apart so it can be fixed.I can see a brass ferrule inside the tube and there is a small black ring that may be a retaining clip of some kind but I'm not sure.Can somebody help me out ?  Thanks in advance


I finally bought some silicon tubing and replaced the two sections that were leaking.I got nice clean 90 degree cuts on the ends.Also got the hose all the way up into the fittings.But it now leaks worse than before.Not sure what I've done wrong.Any help would be appreciated.    Thanks
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Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,052
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Sat Jul 27, 2013, 9:52am
Subject: Re: How to fix teflon tube leak in a Oscar ?
 

Buy tubes, take photos as you remove, replace.  It is very easy.  Look at the link in my sig. file for photos of the inside of the Oscar.

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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carbonfiberone
Senior Member


Joined: 8 Apr 2013
Posts: 14
Location: seattle
Expertise: I love coffee

Espresso: Rocket Cellini
Grinder: Super Jolly/Baratza Vario
Roaster: Behmor 1600
Posted Sat Jul 27, 2013, 10:49am
Subject: Re: How to fix teflon tube leak in a Oscar ?
 

Coffeenoobie thanks for the reply

I can't open your link.The problem is on my side.

Do I just yank the hose out of the fitting ? Do I need to buy any other parts than the hose ?I've searched for a photo of the fitting taken apart but have had no luck in finding one.Any one have a photo ?
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plindy
Senior Member
plindy
Joined: 27 Nov 2002
Posts: 75
Location: Seattle
Expertise: Just starting

Espresso: NS Oscar
Grinder: SJ Pharos Lido HG-One
Posted Sun Jul 28, 2013, 1:33am
Subject: Re: How to fix teflon tube leak in a Oscar ?
 

thumb and finger hold black ring down , while pulling out on the tube
might take a few try's

click
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SStones
Senior Member
SStones
Joined: 24 Nov 2012
Posts: 510
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Sun Jul 28, 2013, 3:04am
Subject: Re: How to fix teflon tube leak in a Oscar ?
 

Or get a very small wrench that's lust barely wider than the diameter of the tube.  Use the wrench as leverage to push the black plastic ring into the fitting. You can hold the fitting and wrench firmly in one hand with a little practice so that you can push and pull the tubing gently until the fitting lets go of it.


Oh. And Coffeenoobie...  Beautiful job you've done on laying out the Oscar Overhaul! Really nicely delivered.
You're a good person.
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carbonfiberone
Senior Member


Joined: 8 Apr 2013
Posts: 14
Location: seattle
Expertise: I love coffee

Espresso: Rocket Cellini
Grinder: Super Jolly/Baratza Vario
Roaster: Behmor 1600
Posted Sun Jul 28, 2013, 9:30am
Subject: Re: How to fix teflon tube leak in a Oscar ?
 

Thanks for the instructions.The pic's were what I was looking for and the wrench technique worked perfect.
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Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,052
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Sun Jul 28, 2013, 9:44am
Subject: Re: How to fix teflon tube leak in a Oscar ?
 

All the thanks go to Plindy. He did all the hard work, I just made a record of it.

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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carbonfiberone
Senior Member


Joined: 8 Apr 2013
Posts: 14
Location: seattle
Expertise: I love coffee

Espresso: Rocket Cellini
Grinder: Super Jolly/Baratza Vario
Roaster: Behmor 1600
Posted Fri Aug 2, 2013, 4:17pm
Subject: Re: Still need help--  How to fix teflon tube leak in a Oscar ?
 

Well I figured that I might as well try to take the leaking fittings apart.So I popped off the black ring and could see a place for a pin type tool.I unscrewed the brass insert a saw that there is a rubber washer that after 13 years is probably causing the leak.There were two of these fittings leaking plus a stainless steel fitting that on the other end of the short Teflon hose.I dont see any way to get to the rubber washer so I guess the whole fitting needs to be replaced.I'm I on the right track to stopping the leaks ?

Heres a pic

Oh by the way I bought new Teflon hose and installed it but the leaks were worse.I've edited my original post to say this

carbonfiberone: 1.JPG
(Click for larger image)
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Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,052
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Sat Aug 3, 2013, 8:18am
Subject: Re: Still need help--  How to fix teflon tube leak in a Oscar ?
 

Did you use pipe goo to seal it?

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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carbonfiberone
Senior Member


Joined: 8 Apr 2013
Posts: 14
Location: seattle
Expertise: I love coffee

Espresso: Rocket Cellini
Grinder: Super Jolly/Baratza Vario
Roaster: Behmor 1600
Posted Sat Aug 3, 2013, 11:04am
Subject: Re: Still need help--  How to fix teflon tube leak in a Oscar ?
 

Coffeenoobie      Where would I use pipe thread compound ? I'm assuming that the rubber washers seal the Teflon tubing.
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