Sounds like a good idea, especially if I pick up a Zassenhaus grinder. I found one with ball bearings that is suppose to make adjustment on grind easier. Can anyone comment on this please. Thanks for all the help. So far my Pavoni has been a lot of fun and I can see I have a large learning curve!

Heckie wrote:I can't believe they would use those plastic teflon pieces there, ridiculous!! Thanks for your post, like Pavoni with their silly Teflon pistons I hope they re-evaluate this design.

Brian,

The plastic sleeve and piston were Pavoni's efforts to help address the overheating issue with their groupheads. Having owned one with a brass piston and one with the nylon, I can say it works.

Sorry been outta town in chi-town for the weekend, man I miss my home set-up! Kinda back to the topic of pavoni's here but

uscfroadie wrote:The plastic sleeve and piston were Pavoni's efforts to help address the overheating issue with their groupheads. Having owned one with a brass piston and one with the nylon, I can say it works.

A little confused by your statement?? Yes the plastic sleeve is an attempt by Pavoni to address overheating, resulting in a larger grouphead to accommodate for the sleeve. But... Are you saying the nylon piston (which actually came out briefly, before the grouphead modification) is effective in preventing the infamous overheating issue with Pavoni's?
Also, not a big fan of plastic parts screwing into metal parts e.g. the plastic sleeve and siphon tube to group insert. Not to mention that silly torque key, do they think customers don't know how to find a torque security bit. I know bikeheads , like yourself, have so many of them that they throw 'em on top of their cheerios! What the heck Pavoni, arghhhhh!
BTW, I have been switching out the nylon piston with a brass one on machines that come in for a tune-up. I prefer them myself, any thoughts here?

Sorry to revive an old thread, but people may be vacillating on the last question about whether to switch out a plastic piston. Christopher Cara supported my switching to a brass piston on a Millennium Europiccola, and he has been servicing Pavonis forever. I don't have temperature control problems at all with the brass piston and the use of water under the faucet on the portafilter.

Heckie wrote:Not to mention that silly torque key, do they think customers don't know how to find a torque security bit.

Nah Torx makes perfect sense in assembling stuff since they can't cam out. I for one, despise phillips and would rather have that everything was screwed down with Torx.
Also, I can imagine liability has something to do with it.

I prefer philips .First of all they look better.Secondly and more important is that Torx allows people to use too much force where it isn't supposed to be applied.