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Showing results for tags 'rocket evoluzione'.
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I have before me a rocket evoluzione with which i have a technical issue. It might be essential to know that the rocket evoluzione has a rotary pump and not a vibration pump. When pulling a shot (with a blind portafilter in) the brew pressure gauge immediately shows the pressure to be 9 bars, but the pressure rapidly climbs all the way up to around 14-15 bars. Obviously by now the safety "over pressure valve" has opened and is letting water out the front of the machine to release all the extra pressure. My initial thought was to adjust the pressure adjustment-nut on the pump and so i did, and whilst i did this, the brew pressure gauge clearly indicated that the pressure was declining, but only from 16 bars or so to around 14-15, before the nut came all the way out from the pump. Therefore i can't adjust the pressure any lower. My second thought was that something, scale or whatever, was disturbing the path from the pump to the group head. So I've disassembled and followed the path, all the way from the pump to inside of the grouphead, but everything was nice and fine, clean and unblocked. I've also checked that the brew pressure gauge readings were indeed true, by measuring the pressure coming out of the grouphead with a portafilter gauge. Are we talking a faulty pump here, or is there something I've missed? The machine is running off the reservoir and it no longer has warranty. Any answers are greatly appreciated!
For sale Rancilio Silvia v3 (from mid 2010) and associated 2 drawer base. The Silvia was bought from another CF member at the start of the year and have only ran about 350g of beans through it (some very nice Caravan Market Blend!). I am only selling as I took advantage of an opportunity and upgraded to a Rocket Evoluzione. Please contact me for further details. I would be happy to send pictures (picture added below) and answer any further questions. Thanks Shady