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fly3k's Achievements

Brewing Nicely

Brewing Nicely (4/8)



  1. Yes the original safety valve is still there and in-line so if all else fails that will kick in and save the day. Now to use up some of my staler beans and buy some more fresh ones
  2. Thanks! I was impressed how clean it was when I got it. The group and portafilter not so much but I’ve given them a good clean up too. The tubing was something my dad happened to have lying around in his garage and it works well so far.
  3. Update time. Here is a photo of the OPV fitted. There are no adjustable bolts on the OPV but after talking to the seller you can adjust slightly by loosening the thread near the hose end. I added a small piece of plastic behind the valve before the spring and put the OPV back together. Pressure was a little higher than I wanted so I loosened the thread a bit and got the pressure to 10 bar on the pressure gauge. Pulled a shot with no issues.
  4. I’ll take some when I take I apart and put some washers in the OPV
  5. That’s the one I ordered. It unscrews but there is just a spring and seal inside. Nothing adjustable.
  6. So I got the valve fitted and with the valve as tight as it goes I get about 7.5 to 8 bar. Any looser it’s about 5 bars. I emailed the seller to see if there was a problem and he said that this OPV isn’t adjustable. It pulls a better shot but I get a lot of water running back in the tank off the OPV now and I probably need to explore my grind size and tamping again as it’s probably too fine now and causing the flow to mainly go out the OPV instead of through the group. I’m going to try and add a little something like a plastic washer to the OPV to increase the pressure back up a bit. I’m not losing any pressure off the steam wand which is a bonus.
  7. I’ve bought this part off eBay and was hoping there might be some form of instructions provided. I have messaged the seller but wondered if anyone had any ideas as to where it goes. I figure that it should go between the current safety valve and the boiler but wasn’t too sure where it should drain out of the OPV if that’s the case? Any thoughts gratefully received. Sent from my iPhone using Tapatalk
  8. I managed to push down from the other end and felt the resistance of the spring valve. Now on the loosest setting I’m getting 14 bar and water running out the OPV. All the way in I get 15 bar and no water from it. I think we can say that it isn’t possible to adjust less than that and I’d need the parts from the YouTube video or the eBay option. So next question. Will 9 bars make much difference to my shots?
  9. I would have thought as you say that something would come out the other end when the pressure is at 15 bar and that it would be liquid so I would notice it. Unless it is set to only happen at a much higher pressure. I’m wondering if I was to apply some force down the pipe with something blunt and a hammer it might loosen anything that is stuck? Anyway still soaking for now Sent from my iPhone using Tapatalk
  10. I’ve given it a soak in hot citric acid and taken out and adjusted the screw and allowed a further soak or two. I have a percussion hammer which might be the right key [emoji23] Sent from my iPhone using Tapatalk
  11. Nothing comes out at all and I thought it probably should given that the basket end is sealed with the pressure gauge. I left it all apart as I wondered if another idea would come up so will go soak it in some citric acid. Sent from my iPhone using Tapatalk
  12. So just had it apart again and adjusted that screw. It was pretty much unscrewed as far as it would go and there is something that stops it coming all the way out like a collar. I can screw it right the way in and you can hear a spring in there. Pressure remained at 14 bar with the screw all the way out and all the way in. Took a photo of the piece as below. Sent from my iPhone using Tapatalk
  13. Yes it does have that slotted screw and that was what I tried adjusting. I was a bit fearful of messing it up by undoing too much but I did a few turns. I’ll get it apart again and try taking it completely apart to see if there is any scale or spring inside. Sent from my iPhone using Tapatalk
  14. I don’t have an internal photo to hand but this is the one from an eBay listing of a spare part which I hope might help. Sent from my iPhone using Tapatalk
  15. Has anyone successfully lowered the pressure on a Gaggia Evolution? I’ve had a look at the safety valve above the tank but after turning it I didn’t read any change in the 15 bar pressure it’s putting out on the meter I’m using on the Portafilter. I’ve seen a replacement part on eBay for £27 which I think would allow some adjustability and a YouTube video using parts from the classic but I wondered if anyone has had any luck with the stock parts. Hopefully you knowledgeable forum members can steer me in the right direction. Sent from my iPhone using Tapatalk
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