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Showing results for tags 'izzo grouphead rebuild'.
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Howdy gang, I think that I ground too fine and tamped too hard! When I locked the portafilter into place and pulled down the lever to preinfuse, all seemed ok, until the lever was stalled and locked pointing at about 60 degrees from horizontal. After a moment the portafilter blew off and the lever sprang back. Unfortunately one of the shower screens and an o-ring blew out, into the drip tray! From an infogram I found I think it's the bottom o-ring that's come out. What should I do? Has anybody experienced one of these "blowouts" of sorts? Can the old o-rings be popped back into place? I figure It's best to replace the screens but should I replace the o-rings too? Your advice is much appreciated.