by claypriley on Mon Sep 26, 2011 9:41 pm
Hi everyone, First off thanks for this great source of information to do with Lever Machines....... I could have never gotten this far(I have been lucky a few times with my Dad's Pavoni Pro) without everyones help...... Upon returning my fathers '83 Pavoni Professional to him with new handles (see page 106 of Rollcall, new pics of handles soon,to be posted in Lever Machine Gallery), I was handed a 1999 Europiccola (49mm0 from my Dad's caregiver and told it didn't work very well....... and she said something about the seals.....
Well after a few days cleaning the machine and taking things apart and putting them back together with the help of you all in this forum, I have discovered that yes it needs new gaskets that seat the boiler to the base so it doesn't move when you lock-in the portafilter. And, there is no water filling the grouphead at the top of the stroke of the lever. Yes, I relieved the "false" pressure. I can barely get a tiny sputtering only when I really force the lever up(i.e. with too much force, as in "I shouldn't have to push like this").
When I took the grouphead apart for inspection, thinking the tiny water inlet hole had become clogged with a fleck of deposit, I found it clear and no obstruction. The machine is very clean, no scale. It heats up fine, makes good steam, but I can't get water to enter the group chamber unless I really go 'gorilla' on the lever. One thought I had was, that the lever pin has become worn or that the hole in the lever arm was becoming oblong. I read a lot of posts when I searched, and yes the lever is in the proper front hole in the down position. The holes in the lever arm look good and round, the pin shows signs of wear The piston ring gaskets look good and are obviously making a seal, no water comes out when the piston is down.
When I had the lever in the all the way up position I can't see the H2o inlet hole, but I thought that water could still come out because the hole could be just below the rubber piston gasket. If I take the lever arm off and push the piston to the top of the group chamber I can't see the inlet hole. I have looked at the piston/piston rod connection and the piston is screwed on tight.
Obviously, I am missing something..... and I know it is probably really simple and right in front of my face....
Hopefully someone has had this experience and can direct me to the right thread in the forum? I will keep searching.
Could the piston be too tall? Or could the piston ring seals be upside down? Vapor Lock? must........have.........coffee...... Thanks in Advance.
LMWDP #347