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Date: 24 Apr 2007 04:34:02
From: CSME9
Subject: Gasket Replacement
Replaced the group gasket and shower screen, the gasket won't seal all the
way around. It is lifted on one side, can i lubricate the gasket to fit into
the group head what can i use ..Tried putting the gasket/filter basket into
the group handle and inserting but no luck.

Thanks, WS






 
Date: 24 Apr 2007 10:17:35
From: Dave b
Subject: Re: Gasket Replacement
On Apr 24, 8:42 am, "CSME9" <wsoto...@earthlink.net > wrote:
> "Dave b" <davebobbl...@gmail.com> wrote in message
>
> news:1177406255.819534.142510@u32g2000prd.googlegroups.com...
>
>
>
> > push it in with a large blunt flat blade screwdriver.
>
> > you DID clean out any crud before attempting to install the new,
> > correct?
>
> > dave
>
> Yes backflushed prior and cleaned after i chiseled out the old hard
> gasket. The group was pretty clean. Placed the new gasket with screen on
> empty handle an inserted hard, which left a small section that had not
> seated. Wrapped electrical tape around a thin long screwdriver so as not to
> scratch the group and pushed the edge of gasket in and pushed in with a
> finger a couple times until the entire gasket seated.
>
> New gasket feels much more rubbery/soft. Old gasket was hard as rock. It
> locks at 61/2 original gasket locked in at 7. I think the original was a
> 9mm, i replaced it with 8.5mm that several vendors said was the correct
> OEM size .
>
> Thanks, WS
>
>

good job!

dave



 
Date: 24 Apr 2007 09:26:32
From: Dave b
Subject: Re: Gasket Replacement
On Apr 24, 8:42 am, "CSME9" <wsoto...@earthlink.net > wrote:
> "Dave b" <davebobbl...@gmail.com> wrote in message
>
> news:1177406255.819534.142510@u32g2000prd.googlegroups.com...
>
>
>
> > push it in with a large blunt flat blade screwdriver.
>
> > you DID clean out any crud before attempting to install the new,
> > correct?
>
> > dave
>
> Yes backflushed prior and cleaned after i chiseled out the old hard
> gasket. The group was pretty clean. Placed the new gasket with screen on
> empty handle an inserted hard, which left a small section that had not
> seated. Wrapped electrical tape around a thin long screwdriver so as not to
> scratch the group and pushed the edge of gasket in and pushed in with a
> finger a couple times until the entire gasket seated.
>
> New gasket feels much more rubbery/soft. Old gasket was hard as rock. It
> locks at 61/2 original gasket locked in at 7. I think the original was a
> 9mm, i replaced it with 8.5mm that several vendors said was the correct
> OEM size .
>
> Thanks, WS
>
>

good job!

dave



 
Date: 24 Apr 2007 05:56:51
From: Randy G.
Subject: Re: Gasket Replacement
"CSME9" <wsotomay@earthlink.net > wrote:

>Replaced the group gasket and shower screen, the gasket won't seal all the
>way around. It is lifted on one side, can i lubricate the gasket to fit into
>the group head what can i use ..Tried putting the gasket/filter basket into
>the group handle and inserting but no luck.
>
>Thanks, WS
>

Whenever replacing a gasket (whether a group head or the head on a '53
Chevy, etc.) it is important to first check that the replacement is
the same as the old gasket. With group head gaskets, small difference
can have a big effect, particularly in thickness which can
dramatically change where the PF locks in place (or whether or not it
can be locked into place). The replacement should be identical-
outside and inside diameter as well as thickness. H=H, W=W, and D=D.

If you establish that the new is identical to the old, then the next
step is to be sure that _ALL_ the old gasket is completely removed and
that the seating area is free from coffee residue or any bits of old
gasket. Unless your head is the size of an orange, this is not always
as easy as it sounds. Use a strong flashlight and a mirror to give the
area a thorough examination. Give the area a good scrubbing with some
espresso machine cleaner and a brewhead brush and/or a Scotchbrite pad
if necessary.

The new gasket should then be able to slide/be pushed into place.
Doing so evenly all the way around should not be terribly difficult.
If it is a tight fit for some reason, something as simple as wetting
it with water should be more than sufficient to get it into place.
Beyond that, if I had to, I would apply a _THIN_ coating of cooking
oil- just enough to make it shine a bit, but no more than that.

Once in place, a few manly locks of the portafilter should be used to
seat it 100%.


Randy "I pulled it out- it should go back in" G.
http://www.EspressoMyEspresso.com




 
Date: 24 Apr 2007 02:17:35
From: Dave b
Subject: Re: Gasket Replacement


push it in with a large blunt flat blade screwdriver.

you DID clean out any crud before attempting to install the new,
correct?

dave



  
Date: 24 Apr 2007 12:42:44
From: CSME9
Subject: Re: Gasket Replacement

"Dave b" <davebobblane@gmail.com > wrote in message
news:1177406255.819534.142510@u32g2000prd.googlegroups.com...
>
>
> push it in with a large blunt flat blade screwdriver.
>
> you DID clean out any crud before attempting to install the new,
> correct?
>
> dave

Yes backflushed prior and cleaned after i chiseled out the old hard
gasket. The group was pretty clean. Placed the new gasket with screen on
empty handle an inserted hard, which left a small section that had not
seated. Wrapped electrical tape around a thin long screwdriver so as not to
scratch the group and pushed the edge of gasket in and pushed in with a
finger a couple times until the entire gasket seated.

New gasket feels much more rubbery/soft. Old gasket was hard as rock. It
locks at 61/2 original gasket locked in at 7. I think the original was a
9mm, i replaced it with 8.5mm that several vendors said was the correct
OEM size .

Thanks, WS
>




 
Date: 24 Apr 2007 17:24:49
From: Brent
Subject: Re: Gasket Replacement

> Replaced the group gasket and shower screen, the gasket won't seal all the
> way around. It is lifted on one side, can i lubricate the gasket to fit
> into
> the group head what can i use ..

brute force?