title_body: Fix my Breville coffee machine filter holder
upvoted_answer: I had been using an espresso maker for several years, but the group head on that is a lot less complicated.
  If I understand the picture, the small part with spring sits on top of the grey clamp at the bottom of the group head, and the diverter sits on top of the spring, then the actual filter basket (pressurized?) is on top of this diverter? Sounds like this diverter can't get fasten to the group head anymore, so the spring pushes it out to burst as you said.
  I don't quite understand the point of the spring. The group head on my old machine looks like this:
  https://images.saymedia-content.com/.image/t_share/MTc0NjIwODYwMDg5NTc1NDE0/review-of-the-oster-prima-latte-espresso-cappuccino-and-latte-maker.jpg
  Maybe you can skip the spring part, and put this filter holder in just to make sure the two exit holes align well, then use the machine as usual? You may need to take things apart to clean after each use.. but sounds like that shouldn't be too hard?