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Espresso: Espresso Mods and Restorations
Rancilio Kathy
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Discussions > Espresso > Espresso Mods > Rancilio Kathy  
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paolo75332
Senior Member


Joined: 22 Feb 2011
Posts: 4
Location: Scotland
Expertise: Just starting

Posted Thu Feb 24, 2011, 12:13pm
Subject: Rancilio Kathy
 

Hi all.

I just got my hands on this old lady.  She wasn't putting out to begin with but after a bit of a scrub, major descaling and some gentle persuasion, I got her waters flowing again…

I don't know anything about this machine but guess it's over 10 years old?  Looks the same as the Lucy except that it's designed to be plumbed in.

Just looking for any relevant information, potential problems, ideas for mods etc.

One main question is - should I immediately update anything?  The 3 way valve looks a bit different to anything I've seen recently.

Can the OPV be adjusted on this?  It's the version with the internal spring and screw.

Anyway - if anyone has any hints and tips they would GREATLY appreciated.


Cheers

Paolo

oh - also, how sharp should the grinder teeth be?  These one's aren't razor sharp but the teeth still look reasonably pointy - not rounded.  Does it make a huge difference to the grind if it's a bit worn?...

paolo75332: !CFmdHlgBGk~$(KGrHqZ,!i4E1MLRQcsWBNVrPL74nw~~0_12.JPG
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paolo75332
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Joined: 22 Feb 2011
Posts: 4
Location: Scotland
Expertise: Just starting

Posted Thu Feb 24, 2011, 12:20pm
Subject: Re: Rancilio Kathy
 

ps.  Here's a schematic of the 3 way valve I mentioned.  Is it Gasket/Washer No. 58 that can modified to change the pressure?

paolo75332: Screen shot 2011-02-24 at 19.18.25.png
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paolo75332
Senior Member


Joined: 22 Feb 2011
Posts: 4
Location: Scotland
Expertise: Just starting

Posted Thu Mar 3, 2011, 4:07pm
Subject: Re: Rancilio Kathy
 

There's nothing quite like answering ones own questions...

Indeed - No.58 can be changed to alter the POV pressure - or - you can just rotate the POV valve (No. 39) a bit and tighten up the threads with some PTFE tape.

I screwed a glycerin filled pressure gauge - 1/4" BSPT - into the portafilter and checked the pressure until I got it to 9.5 bar.

Next is stripping and painting.  Think I'll go for Wrinkle Finish Red for body (kinda like attached photo) and Black for the frame.


Got a PID ordered - it's far too ugly for surface mounting so it's going internal - there's PLENTY room inside Miss Kathy :o)

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dana_leighton
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dana_leighton
Joined: 11 Jan 2002
Posts: 1,937
Location: Little Rock, AR
Expertise: I live coffee

Espresso: Isomac Relax; Caferina...
Grinder: Macap MXK; Baratza Vario-W;...
Vac Pot: Yama 5-cup
Drip: Technivorm; CCD; Melitta
Roaster: Poppery I w/PID controller
Posted Thu Mar 3, 2011, 6:25pm
Subject: Re: Rancilio Kathy
 

paolo75332 Said:

Got a PID ordered - it's fat too ugly for surface mounting so it's going internal - there's PLENTY room inside Miss Kathy :o)

Posted March 3, 2011 link

PIDs are sensitive to high heat during operation, so be sure wherever you put it is not too hot. My Watlow tops out at 149°F max operating temp. The SSR that the PID drives will also need to be mounted inside with room for a heat sink.

 
Dana Leighton - Espresso hack and CoffeeGeek moderator
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paolo75332
Senior Member


Joined: 22 Feb 2011
Posts: 4
Location: Scotland
Expertise: Just starting

Posted Fri Mar 4, 2011, 2:54am
Subject: Re: Rancilio Kathy
 

Yay!  There's someone else out there :o)

I'll keep an eye on that - thanks for the info.  Think it should be ok though - it's cavernous inside the case as there's no water tank.  Even in summer (not that warm in Scotland) I can't see it getting that hot.

From what I gather - the SSR can be mounted behind the 'splash plate' but as I say, there's tons of places to mount it inside.

Would love to get an idea of the age of this thing - must be getting on a bit now...

Cheers

Paolo
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Myrearantenna
Senior Member


Joined: 18 Aug 2013
Posts: 2
Location: Melbourne, Australia
Expertise: Just starting

Posted Sun Aug 18, 2013, 8:16am
Subject: Re: Rancilio Kathy
 

Hi Paolo,

I was searching the net for info on my rancilio miss Lucy and couldn't find a thing. I saw that your Kathy is basically exactly the same.

As I purchased this lady secondhand, I don't have any instructions for it's use.

Would you enlighten me to this machines process for extracting coffee (novice here). No other Lucy has the button configuration of my machine, but yours does!!

Help! :-/
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Myrearantenna
Senior Member


Joined: 18 Aug 2013
Posts: 2
Location: Melbourne, Australia
Expertise: Just starting

Posted Sun Aug 18, 2013, 8:20am
Subject: Re: Rancilio Kathy
 

Here is a picture

It has a rather 70s pattern on the back too
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stuartmac
Senior Member


Joined: 13 Jun 2011
Posts: 1
Location: saint john NB.
Expertise: I like coffee

Espresso: Laranzato Casa,  Faema Due,...
Grinder: RR45
Posted Sun Aug 18, 2013, 4:03pm
Subject: Re: Rancilio Kathy
 

looks cool,  keep up with the updated pics,  i just started a rancillio calsse 8 teardown this week.
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