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Question.

Does the gauge show the pressure of the tank, or does it show the pressure that you are putting on the puck as you pull on the lever?

SwingT wrote:Question.

Does the gauge show the pressure of the tank, or does it show the pressure that you are putting on the puck as you pull on the lever?

Pressure reading is at boiler.

robert mayrand wrote:I just did this with the old cremina cap I had. I used omega gauge, check this link starting at 11$ it's really a good deal.
http://www.omega.com/ppt/pptsc.asp?ref=PGU_Series&ttID=PGU_Series&Nav=

You can choose your connection back or lower connection and the size. I took the 2.5" with back connection so I read the dial from the top. 1-2 bar Is the more appropriate it's quite useful to get the info in bar instead of just PSI as seen in the ebay auction.

I've just finished replacing all the gaskets on a 67 (year '76) Cremina. I've never used a manual lever machine before, but thanks to this great machine and a few youtube videos I pulled a pretty great first shot! How exciting!! However, the shot was a bit sour, and a double didn't yield 60ml (closer to 40) so that tells me it's likely that the pressure isn't quite high enough and I need to play with the pressurestat.

I could rent the gauge from Orphan, but for $15 (price went up on the gauge's) I'm tempted to put one together for my personal use. The problem is I don't know what connections I need to couple the gauge thread to the boiler thread. Here's the link to the gauge to rent at Orphan (I bought all my parts from them btw...they deserve the business). http://www.orphanespresso.com/Olympia-Cremina-67-Boiler-Cap-Pressure-Gauge-Tool-to-Rent_p_1606.html#

What do I need to replicate this? Is there another way to do this? I definitely want to attach the gauge to the boiler cap and not go down other roads...

Also, while I'm waiting for my gauge I'm hoping for some idea of the sensitivity of the pressurestat. Should I start with a quarter turn of the dial? Half turn? Full turn? I don't want to fool around with the safety value until I have the pressure gauge and want to err on the side of caution.

Thanks for any advice you can provide!

Per my machine... 1/4 turn will yield minimal changes that won't approach any safety issue level.