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Rancilio Silvia V2 Steam valve issue

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  • Rancilio Silvia V2 Steam valve issue

    I pulled out the steam valve on my Silvia since it was leaking and so it was time to give it a service. Its done pretty well for a 13 year old machine. The sticking point (excuse the pun) is it just will not come apart. I've tried a home made penetrating oil and left it overnight (asetone and auto transmission fluid) an actual pentrating oil, WD 40 specialist penetrant. I've boiled it and soaked it in vinegar and tried to open it with vice grips and a 22mm spanner. I don't have a bench vice so am wondering if there is anything else I might not have thought of? Is the next step a new valve?
    Last edited by seiko-6138; 1 week ago.