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  1. Hi all, I would like to pick your brain as I ran into a dead end here. I have a V3 Silvia (2009) that I pretty much refurbished bit by bit. The problem is that I'm getting water dripping back on the return hose as the machine heats up, steam also escapes there. The first heat cycle is silent, but the second usually comes with the kettling sound. It kind of sounds like a concerto on a Tibetan singing bowl and a kettle full of scale. As all forum threads I've found say it could be simple case of the OPV stuck open or limescale stuck somewhere, but: there is no limescale in the system (
  2. Can anyone point me to a UK supplier of a OPV (looks like I have a v3 as it's adjustable) OR a refresh kit It would appear the gasket within the OPV is severely degraded, and the hex nut doesn't look great (may be pierced?).
  3. I have decided to sell my roughly one-year old Gaggia Classic 2019 (also called the Pro, Model Number: RI9480/18, Serial Number: TU901842081344) here in the forum (coming here directly from the Valuations section). It works perfectly, never had any problems with it, the only reason why I am selling it is because I would like to move into a much higher category (I became highly interested in pressure profiling). I backflush weekly with Pullycaff and descale the machine monthly. I use Brita filtered water and empty the tank after each use. The only scratches I could find is on the side of t
  4. I've had a bit of an odd outcome every time I try to check the OPV setting on my ISOMAC Millennium. I have a pressure gauge that I fit to the portafilter. When locked into the grouphead, water somehow flows past the grouphead seal so I can't get an accurate pressure reading. When I do normal backflush routines, this never happens. Always seals. What am I doing incorrectly? Why would this happen?
  5. What pressure should I be reading on the brew head pressure gauge on my Minma? I think it might be a bit high at 9 bar. Where is the OVP and how it it best accessed if I need or want to adjust the pressure. These are probably rather naive questions, but this being my 4th express machine but first E61. I'm loving it and producing great espresso, but there was and is a learning curve. I think the arrival of a Niche in (hopefully) February will be a welcome grinder upgrade.
  6. Nickd


    I hope that someone can guide me in the right direction. I've been reading lots of articles and watching loads of YouTube vids about how to make an espresso with my old Gaggia Tebe, that I rescued from gathering dust in the garage. I've had it in pieces (since it wouldn't pump water through the group head when I found it) and have now got it working... well, sort of! I didn't open the OPV since I don't know how to reset it correctly, but think this may be the problem. When I try to make coffee, most of the water goes through the OPV back to the reservoir; I just get drips from the
  7. Hi all, I would like to find out if adjusting the OPV on the 2015 model is the same process as the older model, in that you remove the large brass connector thing and then use a 5mm hex to adjust behind? Many thanks in advance for your advice.
  8. I'm not clear why Sage designed these machines to run at a higher pressure than most - it must have been a deliberate thing but I'm not sure what the benefit was supposed to be. Anyway, a few days ago the tank on my BE happened to run dry in the middle of a shot and I lost pressure. I had some bottled water handy so refilled the tank right away - the pressure ramped back up and the shot continued to extract. The result was a much slower extraction for about the same yield. The shot was surprisingly good, so now I'm thinking about reducing the pump pressure by fiddling with the OPV. This w
  9. r12324

    9 bars

    Hi Dears, I purchased Lelit Victoria 58mm I got a feeling that my coffee is underextracted very light colour of the cream, much sour taste in most of the cases, i change so many option of coffees... Almost same results Can someone explane how set up the pressure to 9 bars? This 9 bars shold be with the coffee or with blind filter? If with coffee... How many grams? With the blind filter my mashine nanometer is at 10 bars
  10. 2003 Pre Phillips Gaggia Classic with PID Rancillio Steam Wand I.M.S Shower Screen MyPin PID OPV set @ 9 Bar 2 x group handles various baskets & cleaning basket Good condition, descaled regularly, no expense spared, recent new seals, Comes with various spares £180 Collection preferred from SO22 (Winchester, Hampshire) but will courier @ buyers expense & possible risk
  11. Hey peeps, I'm going to adjust the opv valve on my Classic tomorrow, I've watched a few vids & been through the forum & it all seems pretty straight forward but I've seen conflicting info re a couple of things Whether to have the steam wand opened (which doesn't seem to make any sense to me, wouldn't that let some of the pressure out)? Whether to fill the portafilter with water before starting (wouldn't it just fill up during the start of taking the pressure anyway)? Sorry to ask about a topic with so many posts but finding it difficult to find anything concrete.
  12. I have a Rocket R58 and for the past couple months I have been experiencing the following problem: When turning the machine on after about 15 minutes the steam pressure continues to rise past the 1-1.5bar green zone on the dial to around 2.25bar, this is the point where the OPV releases, the OPV activates and releases the excess pressure, initially this was intermittant but now it occours every time the machine is turned on (I have now turned off the steam/service boiler). The heater doesn't shut off and the water in the boiler is continued to heat, so my initial thoughts were that its a
  13. Hi All - I have a 10 year old Gaggia Classic and did the OPV mod a while ago. I am getting decent shots however I want to figure out what bars I am really putting out. I tried the volume of water method (blank portafilter, putting a class of water under one of the tubes) and I am getting no returned water? Does this mean my machine is still set to too many bars and I need to turn the OPV nut more. I am getting decent shots, about 32g out in 30s when my Fiorenzato grinder at a 1.8 setting. A few questions... 1.) there are two tubes in the water reservoir, which one is for the water su
  14. Hello, I have decided to finally join this forum after referring to posts on here for some time now to get information about my pre 2015 Gaggia classic. I currently have a few issues with it that have arisen recently. Firstly, the shower head no longer flows like a shower, but a single stream on the left hand side, which i am not quite sure how to resolve. Secondly, a relative bought me a shallow stainless steel drip tray from Gaggia.uk, which is good, but the overflow pipe is far too short to reach the tray now. I was wondering if anyone else had had this same issue with shallo
  15. £150, collect near Sheffield. Lovely, regularly serviced, pre 2009 (12/2005) original Milan made machine. Some minor marks, but otherwise great condition. Mods: - Rancilio Silvia wand (original also included) - Brass dispersion plate - IMS Precision shower screen - OPV adjusted New Parts: - Complete new boiler - New 3 way valve Extras: - Blind basket for back-flushing. - Bottle of Gaggia de-scaler All usual parts included, portafilter, plastic tamper, single basket etc. Also available separately - Naked Portafilter (with wooden handle) and 58mm M
  16. All, trying to get my head around the reason for adjusting the OPV on my new to me Gaggia Classic. I've done a whole bunch of searching, but nothing that exactly answered my question. Closest I got was here. Right now I am trying to dial in the tamp/grind/dose to just get flow through the machine (a different thread I have). Am I correct that even if you have a machine that has the OPV setting at 12bar, if you have a puck that will flow at 9bar that OPV won't come into play/matter. So if I can't get flow through a puck at a 12bar setting, changing the OPV to 9bar won't change anythi
  17. Hi, I've tried searching but not finding the info I need. I've got an Isomac machine that uses the E61 group head. I'm in the process of an overhaul and need to replace the OPV (expansion valve) so need to adjust it to the right pressure once all together. I have a pressure gauge but need the right joint and thread. Can anyone advise what the thread size on the spout of the portafilter is likely to be? Thanks.
  18. NEW PRICE: £100 if picked up by the end of this weekend! I am moving to the 120V USA, so I'm selling my beloved Gaggia Paros. The Gaggia Paros is effectively a Gaggia Classic internally with a built in grinder, in a compact unit. It was a perfect starter kit for me in terms of price and counterspace. The grinder has worked well for me, and Mark (gaggiamanualservice.com) said they are 'quite good'. The Paros is easily modifiable, just like the classic, although the internal layout is different. I installed the Rancilio steam wand and adjusted the over-pressure valve to 9 bar. I also
  19. I was in the middle of what I thought was an easy reduction in pressure on the OPV when I found that after inserting the 5mm Allen key and trying to turn anticlockwise, nothing moved. Totally stuck. The machine is a little warm - do I wait for it to be cold and try again, or is this limescale or something and requires more thought?
  20. I've been having some trouble with my Classic where there's limited flow out of the group head but lots out of the OPV. I thought maybe something was in there holding it open so I've taken it apart (I've got a pressure gauge so I can set the pressure correctly again afterwards). When I unscrewed the adjustment screw all the way out (13 turns, for my own reference when I put it back together...) then took the spring out, there's a little "bolt with a hole in and rubber on the bottom" - I've no idea what this part is actually called. Anyway, the rubber on the bottom is all perished and fal
  21. So, i've been reading a lot about pressure profiles for espresso and had been having issues with my Oscar II shots, so decided to purchase an OPV. (I can post a guide if anyone else is interested, and yes, I do realise the Oscar can't pressure profile..) Before installing I took a reading of my machine, though - which indeed was running super high - at around 15 bar or so. I installed it late last night and took a reading at about 9 bar, or so. Happy with that. I should have taken multiple readings, as today I checked again multiple times, which was now showing my OPV at 8 bar. The questi
  22. Has anyone used one of these? https://www.ebay.co.uk/itm/Portafilter-Pressure-Gauge-Tester-Gaggia-Classic-Coffee-Machine-Espresso-Maker-E/161207195351?epid=1769635886&hash=item2588b296d7:g:kf4AAOSwabhUX2RF My portafilter is the type with two holes underneath and no spouts, so I'd need to buy a new portfilter anyway to do the mod, as well as all the other parts. So it seems easier just to buy this pre made one. if anyone has any experience of these please let me know. Thanks
  23. I've been watching eBay for a suitable Baby as a project, and the model I wanted was the one with 4 square buttons across the front, which should date from around 2004. So bought one and waiting for it to arrive. I wanted a Baby since the top comes right off and it's easier to work on than a Classic, and this model should also have the larger solenoid. I'm planning to swap in a Classic type OPV to get the pressure to 10 bar, though when it comes I'll put my pressure gauge on it and see what it has at present. Any other ideas for what to upgrade on this model Baby? Hopefully it all works
  24. Gaggia Classic in great condition for sale. 2006 model pre-philips i.e. larger solenoid / higher wattage Usual mods done (OPV adjusted, rancillio Silvia steam arm installed with a twist!) I found the Rancilio steam tip itself was still not good enough for microfoam so I fit an additional attachment mounted onto the steam wand which I have used on other machines with excellent results. You get a smaller diameter hole making it dead easy to make your microfoam with the added bonus of it now also being a no-burn easy to clean situation. It is also completely removable if you for some reason
  25. Just to share my experience, after reading in a lot of places that there was no possible OPV adjustment on the 2015 Classic, some advice here from Jumbo Ratty and jimbojohn55 set me straight. Finding out that I could adjust a nut on the new OPV, I decided to give it a try. Here is the new style OPV in question (picture courtesy of Jumbo Ratty): Others have reported that their new Classics hit 10 bar out of the box. Attaching a pressure gauge to the portafilter, my 2016-made Classic was reading around 11.5 bar. I simply eased of the 10mm nut around one full turn to achieve a 1
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