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Trouble measuring rotary pump pressure with DIY portafilter gauge - Page 4

Postby Vad on Fri May 22, 2009 3:26 am

erics wrote:Yes, Shawn is very knowledgeable but . . . why not just go to their website: http://www.fluid-o-tech.com/ and on the left hand side you will see a link to the F-O-T website in Italy.
Grab any numbers you can off your existing pump (it is probably an 051) and see if they have a "factory exchange" program.

I have contacted the pump service here, and they said they don't do this brand, I am also waiting for a reply from the second service, and while I wait for emails from three sellers (Shawn including) I will now call to Italy—to explore all the possibilities.
Thank you for your valuable input.

EDIT: and the other (last) pump service now said they don't do them. So it looks like I have to buy a new one. So the waiting for the pricing quotations (from various shops and Italy dealer) continues.
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Postby Psyd on Fri May 22, 2009 2:52 pm

Vad wrote:So it looks like I have to buy a new one

This sounds like an opportunity to learn about pumps. You can now feel comfortable opening this one up to see why it isn't working too well. Who knows, you may find a small issue that you can solve!
Nothing makes you more aware of what kind of care a piece of kit takes better than investigating a new one, and now you have a carte blanc. Since you have to buy a new one, there is no harm done of you completely destroy this one trying to fix it.
It's the technical version of "unexpected travel suggestions (being) dance lessons from God".

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Postby Vad on Fri May 22, 2009 3:25 pm

Sure thing I will take it apart, after I install a new one :) With this I can at least steam milk, so I need it for now. I am looking forward to a new one, when I will have real 9 bar power, instead of 3 bar I had before.
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Postby Vad on Mon May 25, 2009 1:42 pm

So now I have a new pump in front of me. Will install it now. Fingers crossed :?

EDIT1: Well, I dismantled the old one, and found out that I could not unscrew the adaptors on it, that I do not have the instruments (did not notice their absence). So I figured I would screw around with the old pump. So I began to screw that adjustment screw out, then in, to the maximum. Then something inside clicked slightly. Strange, I said to myself. Then I continued to vigorously turn the knob by hand. Poured some water inside and noticed, that suddenly, the water level in the pump began to react to my knob turns. Wow. Maybe I unstuck something inside, that got stuck during one year of pump's idle state? I mounted the pump back and YES, IT BEGAN WORKING! Yowzaaa!

I have now used the gauge, and setup the pressure to be 9-9,5 bars, with a flow of water 60 ml in 24 seconds. At least it is now working and I can play with it.

As for the new pump, the seller agreed to take it back and return the money. So overall, a week of frustration, but all well that ends swell.

Thank you all for your help in identifying a problem and for your suggestions.

EDIT2: as for the leak, I will check it in a month, and see whether it is there and if it is significant. If yes, then I will change the pump for a new one.
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Postby Psyd on Mon May 25, 2009 7:36 pm

Vad wrote:So I figured I would screw around with the old pump... ...and YES, IT BEGAN WORKING!


Who'da thunk it?

Psyd wrote:This sounds like an opportunity to learn about pumps. You can now feel comfortable opening this one up to see why it isn't working too well. Who knows, you may find a small issue that you can solve!


Oh. Yeah, hunh? :wink: :shock: :lol:

Glad you messed with it, glad it worked out, hope it holds!
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Postby Vad on Wed May 27, 2009 1:54 pm

2 Psyd: Thank you. Yes, now I finally made a normal coffee under normal pressure 9 bar. :)

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Postby Psyd on Wed May 27, 2009 4:20 pm

Vad wrote:Psyd: Thank you.


You're buying the beer when I make to to the Czech Republic... ; >
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