Hello everyone,
So I came across a Rancilio AT at the roaster I do service work for and I decided to play with it some and restore it having heard good things about the espresso quality. I also happen to have an arsenal of old parts from a tech we bought out when he retired.
anyways I got the groups rebuilt and everything works just fine but I was wondering what some of you think about these machines, I know they waist A LOT of water, (about a quart per shot go's down the drain) but I also noticed the pressure for the group is really high, when I put my pressure gauge on the group it burried the needle! That's over 20 bars! don't worry I put a valve on the bottom of the pressure gauge to be able to relieve the pressure. I did the same thing on a Rancilio Lever and it capped out at 12 bars. The biggest problem I am having with the AT is there is so much pressure at the group it's leaking around the portafilter and I put brand new gaskets on it with no luck.
So what are your thoughts and tips on this machine, is there a way to fine tune it? I realize I'm kinda at a loss and have no idea where to go from here.
Thanks Mat
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