HomeRoast Digest


Topic: Group gasket > RE: +Espresso machine go *Boom* (15 msgs / 746 lines)
1) From: miKe mcKoffee
FWIW backflushing does nothing to prolong the life a grouphead gasket.
Periodic need to replace the group gasket is just part of normal maintenance
on all espresso machines. IMO it's better to do it more often (before
leaking around PF during shot) than wait for it to get good and hard and
really "fun" to replace. Only 5 or 6 bucks. Atleast annually.
Kona Konnaisseur miKe mcKoffee
URL to Rosto mods, FrankenFormer, some recipes etc:http://mdmint.home.comcast.net/coffee/Rosto_mod.htmUltimately the quest for Koffee Nirvana is a solitary path. To know I must
first not know. And in knowing know I know not. Each Personal enlightenment
found exploring the many divergent foot steps of Those who have gone before.
	From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of Sandy Andina
	Sent: Monday, July 17, 2006 12:47 PM
	
	After replacing my Livia's p'stat, I thought I could leave it on
24/7. But after a hellish, sooty and sweaty couple of hours spent changing
an ossified grouphead gasket (despite having religiously backflushed and
periodically cleaned the shower screen), I have decided it's no biggie to
shut off the machine at bedtime and when nobody who drinks espresso is at
home to use it. I also store the PF out of the machine when it's turned off
and parked loosely on the grouphead (just tightly enough to mate and heat
up--get your minds out of the gutter, thank you) when it's on, to prolong
the life of the rubber gasket.

2) From: Sandy Andina
--Apple-Mail-16-919258070
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset-ASCII;
	delsp=yes;
	format=flowed
On Jul 17, 2006, at 4:33 PM, miKe mcKoffee wrote:
<Snip>
I know that. But it was such a PITA due to its having hardened that I  
don't want to do it more often than necessary (and in my case, it was  
almost exactly one year), and when I do change it I'd like it to come  
out a bit more easily.  Had I not left the machine on 24/7 with the  
PF locked firmly in place, the gasket might have stayed softer longer  
and been easier to remove.  It took an icepick, awl, screwdriver,  
chisel and a Swiss Army knife to remove the old one (and I had to  
empty the machine and invert it), and when I was done there was so  
much rubber dust mixed with coffee residue that it looked like a  
chimney sweep had eaten locoweed and gone berserk in my kitchen.   
(But you should see my biceps now).
Sandy
www.sandyandina.com
--Apple-Mail-16-919258070
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charsetO-8859-1
On Jul 17, 2006, =
at 4:33 PM, miKe mcKoffee wrote:

FWIW backflushing does = nothing to prolong the life a grouphead gasket.

Periodic need to replace the = group gasket is just part of normal maintenance

on all espresso machines. = IMO it's better to do it more often (before

leaking around PF during shot) than = wait for it to get good and hard and

really "fun" to replace. Only 5 or 6 = bucks. Atleast annually.

I know = that. But it was such a PITA due to its having hardened that I don't = want to do it more often than necessary (and in my case, it was almost = exactly one year), and when I do change it I'd like it to come out a bit = more easily.  Had I not left the machine on 24/7 with the PF locked = firmly in place, the gasket might have stayed softer longer and been = easier to remove.  It took an icepick, awl, screwdriver, chisel and a = Swiss Army knife to remove the old one (and I had to empty the machine = and invert it), and when I was done there was so much rubber dust mixed = with coffee residue that it looked like a chimney sweep had eaten = locoweed and gone berserk in my kitchen.  (But you should see my = biceps now). = --Apple-Mail-16-919258070--

3) From: miKe mcKoffee
You win! Sounds like you had more "fun" (though not by much) than I did the
first time replacing Silvia's gasket after close to 2 years.
When first read about how the screen is just held in place by the group
gasket on E61 machines it seemed kind of "cheap" to me. Until getting the
Bricoletta and realizing the beauty of the simple design. Recent thread on
HB talked about how to use backflush blank with partial pressure & wiggle
the screen & gasket loose. Tried it and worked like a charm. Didn't come all
the way out but very loose and easy to get out, 8 months usage ~16hrs on a
day. Some people talked about fear of splashing hotwater so wouldn't try it
but wasn't a problem. Don't know how the Livia's set up but if like E61
might give the technique a try. You could have the screen and gasket off and
new gasket installed in a couple minutes. Of course might want to give the
screen a Cafiza soaking while it's out so would add time but not effort.
(Even with regular weekly Cafiza backflushing and water only backflushing
every shot session still was a bit of build up on the inner screen holder
side wall when I took it out a couple weeks ago.)
Kona Konnaisseur miKe mcKoffee
URL to Rosto mods, FrankenFormer, some recipes etc:http://mdmint.home.comcast.net/coffee/Rosto_mod.htmUltimately the quest for Koffee Nirvana is a solitary path. To know I must
first not know. And in knowing know I know not. Each Personal enlightenment
found exploring the many divergent foot steps of Those who have gone before.
	From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of Sandy Andina
	Sent: Monday, July 17, 2006 2:44 PM
	I know that. But it was such a PITA due to its having hardened that
I don't want to do it more often than necessary (and in my case, it was
almost exactly one year), and when I do change it I'd like it to come out a
bit more easily. Had I not left the machine on 24/7 with the PF locked
firmly in place, the gasket might have stayed softer longer and been easier
to remove. It took an icepick, awl, screwdriver, chisel and a Swiss Army
knife to remove the old one (and I had to empty the machine and invert it),
and when I was done there was so much rubber dust mixed with coffee residue
that it looked like a chimney sweep had eaten locoweed and gone berserk in
my kitchen. (But you should see my biceps now).
		Sandy
	www.sandyandina.com

4) From: Brett Mason
Note to self - don't lock in portafilter
Note to self - mark gasket on next year's calendar
Note to self - Folgers is easier - but nowhere near the delight
On 7/17/06, Sandy Andina  wrote:
<Snip>
-- 
Regards,
Brett Mason
HomeRoast
   Zassman

5) From: miKe mcKoffee
I fibbed, took about 5 minutes to replace the group gasket on the E61 Bric'.
Would have been quicker but duh, wet the new gasket first!!! Which I didn't
so took a bit more work to get the new one all the way seated. (Inside of
screen holder wall didn't need soaking)
Oh, when I first tried that pressure wiggle technique to remove the gasket &
screen a couple weeks ago didn't replace the gasket since wasn't needing
more than moderate PF pressure lock for shots or backflush, no leaks. And
had only been 8 months. But when popped it off just now and compared how
stiff the old gasket was to one of the two I had in spare stock, noticable
difference so replaced it. FWIW replaced the group gasket without even
turning the Bric' off. I do like that E61 group gasket/screen design!
And not to worry, those spare group gaskets laying around aren't in danger
of drying out. Little Foodsaver vac bags don't you know:-)
miKe
<Snip>
<Snip>

6) From: miKe mcKoffee
I shut the Bric' off at night not because of the rubber gasket hardening
sooner, simply a safety measure. Actually I don't usually shut the Bric' on
or off at all, the timer does:-) Wouldn't worry about keeping the PF in the
group, just not locked tight but loosely with minimal pressure on the gasket
so it doesn't form a crater. FWIW since the Bric' needs a good 9oz HX
cooling/E61 warming equalization flush from idle no longer bother keeping
the PF in the group, sticking out just asking to get in the way. The long
flush from idle through empty PF warms it up fine, as it hot.
Kona Konnaisseur miKe mcKoffee
URL to Rosto mods, FrankenFormer, some recipes etc:http://mdmint.home.comcast.net/coffee/Rosto_mod.htmUltimately the quest for Koffee Nirvana is a solitary path. To know I must
first not know. And in knowing know I know not. Each Personal enlightenment
found exploring the many divergent foot steps of Those who have gone before.
	From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of Brett Mason
	Sent: Monday, July 17, 2006 3:39 PM
	
	Note to self - don't lock in portafilter
	Note to self - mark gasket on next year's calendar
	Note to self - Folgers is easier - but nowhere near the delight

7) From: Michael Guterman
Mike,
I don't know "HB".  My Isomac is down for the moment, but when I get the 
parts I want to put in a new gasket, too.  Could you post the details of 
the screen and gasket loosening technique, please?
Thanks,
Michael
miKe mcKoffee wrote:
<Snip>

8) From: miKe mcKoffee
HB=home-barista.com, in this case the forum, sorry about that.http://www.home-barista.com/forums/viewtopic.php?t48Bascially it's locking a PF with backflush blank in as usual. Let pressure
build 'til about 4 to 5bar then partially loosen PF then re-tighten. If you
let it go to full shot pressure good luck turning it loose:-) Repeat a few
times and the screen pushes the gasket loose! You'll be able to feel it
happen through the PF handle. Way cool. Some have said it's totally plopped
out for them but hasn't for me. For me it's been one side of the screen will
be seen obviously pushed lower, very slight almost no pressure prying the
side of screen basket and the screen and gasket then just falls out. I'll
say it again, WAY COOL! So simple no excuse for not replacing gasket every 6
months to a year pre-emptively before it gets hardened and becomes a PIA.
(depending on up time) 
Kona Konnaisseur miKe mcKoffee
URL to Rosto mods, FrankenFormer, some recipes etc:http://mdmint.home.comcast.net/coffee/Rosto_mod.htmUltimately the quest for Koffee Nirvana is a solitary path. To know I must
first not know. And in knowing know I know not. Each Personal enlightenment
found exploring the many divergent foot steps of Those who have gone before.
<Snip>

9) From: Michael Guterman
Thanks.
Michael
miKe mcKoffee wrote:
<Snip>

10) From: Sandy Andina
--Apple-Mail-17-937439169
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset-ASCII;
	delsp=yes;
	format=flowed
The underside of the screen gets gunked up breathtakingly fast-- 
often, even after a Cafiza-and-steaming-water soak for half an hour,  
I need to ream the screen holes out to dislodge the residue.
On Jul 17, 2006, at 5:36 PM, miKe mcKoffee wrote:
<Snip>
Sandy
www.sandyandina.com
--Apple-Mail-17-937439169
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset-ASCII
The underside of the screen gets =
gunked up breathtakingly fast--often, even after a =
Cafiza-and-steaming-water soak for half an hour, I need to ream the =
screen holes out to dislodge the residue.
On Jul 17, 2006, =
at 5:36 PM, miKe mcKoffee wrote:

Of course might want to give = the

screen a = Cafiza soaking while it's out so would add time but not = effort.

(Even = with regular weekly Cafiza backflushing and water only = backflushing

every shot session still was a bit of build up on the inner = screen holder

side wall when I took it out a couple weeks ago.)

= = --Apple-Mail-17-937439169--

11) From: Sandy Andina
--Apple-Mail-18-937570384
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset-ASCII;
	delsp=yes;
	format=flowed
but that only works on e61 machines, right?
On Jul 17, 2006, at 7:04 PM, miKe mcKoffee wrote:
<Snip>
Sandy
www.sandyandina.com
--Apple-Mail-18-937570384
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charsetO-8859-1
but that only works on e61 =
machines, right?
On Jul 17, 2006, at 7:04 PM, miKe mcKoffee =
wrote:
HB=home-barista.com, in this = case the forum, sorry about that.http://=www.home-barista.com/forums/viewtopic.php?t=1848 build 'til about 4 to 5bar then = partially loosen PF then re-tighten. If youlet it = go to full shot pressure good luck turning it loose:-) Repeat a = fewtimes and the screen pushes the = gasket loose! You'll be able to feel ithappen = through the PF handle. Way cool. Some have said it's totally = ploppedout for them but hasn't for me. = For me it's been one side of the screen willbe seen obviously pushed lower, very slight almost = no pressure prying theside of screen basket and = the screen and gasket then just falls out. I'llsay it again, WAY COOL! So simple no excuse for not = replacing gasket every 6months to a = year pre-emptively before it gets hardened and becomes a PIA.(depending on up time)  Kona = Konnaisseur miKe mcKoffeeURL to Rosto = mods, FrankenFormer, some recipes etc:http://mdmint=.home.comcast.net/coffee/Rosto_mod.htmfirst not know. And in knowing = know I know not. Each Personal enlightenmentfound exploring the many divergent foot steps of = Those who have gone before. -----Original = Message-----From: homeroast-admin= s.sweetmarias.com [mailto:homeroast-adm= in] On Behalf Of Michael = GutermanSent: Monday, July 17, 2006 4:46 = PM Mike, I don't know "HB".  My Isomac is down for the = moment, but when I get the parts I = want to put in a new gasket, too. = Could you post the details = of the screen and gasket loosening technique, = please? Thanks, Michael homeroast mailing listhttp://li=sts.sweetmarias.com/mailman/listinfo/homeroastTo change your personal list settings (digest = options, vacations, unsvbscribes) go to http://=sweetmarias.com/maillistinfo.html#personalsettings = = --Apple-Mail-18-937570384--

12) From: miKe mcKoffee
It would likely work on any machine that the group gasket holds the screen
in place rather than a screw or something.
 
Kona Konnaisseur miKe mcKoffee
URL to Rosto mods, FrankenFormer, some recipes etc:http://mdmint.home.comcast.net/coffee/Rosto_mod.htmUltimately the quest for Koffee Nirvana is a solitary path. To know I must
first not know. And in knowing know I know not. Each Personal enlightenment
found exploring the many divergent foot steps of Those who have gone before.
	From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of Sandy Andina
	Sent: Monday, July 17, 2006 7:49 PM
	
	but that only works on e61 machines, right?
	
	On Jul 17, 2006, at 7:04 PM, miKe mcKoffee wrote:
		HB=home-barista.com, in this case the forum, sorry about
that.
	http://www.home-barista.com/forums/viewtopic.php?t48		Bascially it's locking a PF with backflush blank in as
usual. Let pressure
		build 'til about 4 to 5bar then partially loosen PF then
re-tighten. If you
		let it go to full shot pressure good luck turning it
loose:-) Repeat a few
		times and the screen pushes the gasket loose! You'll be able
to feel it
		happen through the PF handle. Way cool. Some have said it's
totally plopped
		out for them but hasn't for me. For me it's been one side of
the screen will
		be seen obviously pushed lower, very slight almost no
pressure prying the
		side of screen basket and the screen and gasket then just
falls out. I'll
		say it again, WAY COOL! So simple no excuse for not
replacing gasket every 6
		months to a year pre-emptively before it gets hardened and
becomes a PIA.
		(depending on up time) 
		Kona Konnaisseur miKe mcKoffee
		URL to Rosto mods, FrankenFormer, some recipes etc:
	http://mdmint.home.comcast.net/coffee/Rosto_mod.htm		Ultimately the quest for Koffee Nirvana is a solitary path.
To know I must
		first not know. And in knowing know I know not. Each
Personal enlightenment
		found exploring the many divergent foot steps of Those who
have gone before.

13) From: Barry Luterman
This is a multi-part message in MIME format.
Sandy doing a PF wiggle after each shot really keeps the screen clean. =
If you are not already doing it give it a try

14) From: Sandy Andina
--Apple-Mail-19-944158360
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset-ASCII;
	delsp=yes;
	format=flowed
I've been doing that for months now.
On Jul 17, 2006, at 11:30 PM, Barry Luterman wrote:
<Snip>
Sandy
www.sandyandina.com
--Apple-Mail-19-944158360
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charsetO-8859-1
I've been doing that for months =
now. 
On Jul 17, 2006, at 11:30 PM, Barry Luterman =
wrote:
Sandy doing a PF wiggle = after each shot really keeps the screen clean. If you are not already = doing it give it a try

15) From: Angelo
You might want to try the semi/demi pod procedure....It's been 
discussed in the archives...
<Snip>


HomeRoast Digest