Post by AlanYes, Cara is still in business in San Francisco. And he carries plenty of
Pavoni parts. But before you assume interchangeability with Pavoni parts and
the ease of improvisation, you might want to consider what Christopher Cara
" ... 'On eBay I saw something called La Cara,' I said.
'Yes, that was my father's. It was made in Spain and he sold it here, but
don't buy it because I have no parts for it,' Mr. Cara said. 'Using
substitute parts for repairs would be dangerous', Mr. Cara said, because
'you're dealing with a steam pressure mechanism and you don't want something
to just pop off and then you've got the pressure all over you, do you?' ...
"
I liked Chris Cara when I met him. It may be that the La Cara's main
piston seal isn't compatible with the older La Pavoni machines, but
I've heard otherwise from other sources. I suppose I'll get to find
out some day.
However, I'd dispute the "pressure all over you" bit.
If the main seal won't hold pressure, you aren't going to have any
pressure to worry about. If it does, well, anyone with a home
non-spring lever machine is used to dealing with the pressure.
Firstly, the operator provides the brew pressure, and, secondly, if
you foozle the grind, you have to know how to relieve the machine's
pressure. Oh, and then there are the "sneezes."
Unless you do something fairly stupid with the pressure relief valves,
the machine's boiler's internal pressure is fairly low, not much
higher than a moka pot's. If you dump it all out of the brew head, it
would be messy, but it's not aimed at the operator.
Improvisation is the at the heart of all true repairs. If the design,
workmanship, and materials had been perfect, the chance of a repair
being neccessary at all is remote. In many cases, the purpose of a
repair is to improve the original and overcome its original defects.
Sometimes you can do this by replacing the original part ith an exact
duplicate of that part. Sometimes the original part itself is the
problem, and you must seek a superior alternative. Not everyone is
qualified to do this.
Not all improvisations are improvements, either in jazz or in espresso
machines. I would expect that ham-fisted amateur improvisations are
the bane of John Cara's existence.
I'm sure Chris's heart is in the right place, and I'm sure a more
modern pump machine would be more satisfactory than a lever machine
for 99% of the populace, but I think he's being a bit of an alarmist
about the repairs.
-Shel