Our Valued Sponsor
OpinionsConsumer ReviewsGuides and How TosCoffeeGeek ReviewsResourcesForums
Espresso: Lever Espresso Machines
La Pavoni - water entering group early?
Stefano's Espresso Care
Repair - Parts - Sales
Factory Authorized &
Trained Technician
www.espressocare.com
 
Not Logged in: Log In to Postlog in
New Topics updated topics   New Posts new posts   Unanswered Posts new unanswered  
Search Discussion Board search   Discussion Board FAQ faq   Signup sign up  
Discussions > Espresso > Lever Espresso > La Pavoni -...  
view previous topic | view next topic | view all topics
Author Messages
mixmasta
Senior Member


Joined: 17 May 2013
Posts: 2
Location: London
Expertise: Just starting

Espresso: La Pavoni PL
Grinder: Hario Skerton
Posted Fri May 17, 2013, 8:52am
Subject: La Pavoni - water entering group early?
 

I bought a used La Pavoni Professional lever machine just a couple days ago and so far I am positively surprised with the shots I am getting after reading how long it can take one to get good coffee out of this machine.

However, what I noticed on my machine is that there is already water entering the group when the lever is halfway up (horizontal). Not as much as in the full-up position but enough to start filling up the portafilter. I noticed from watching numerous videos on youtube that many users can lift the lever almost fully before tightening the portafilter with no water flowing of course.

I'd like to get some opinions from other La Pavoni users on this issues - and if you can - suggestions on what to do about it.

The shots I am getting taste ok and I get decent crema, but I get very little volume. Also, I am only getting resistance from the lever after about half way through the pull. It seems that whenever the lever is above horizontal, the valve to the boiler is slightly open and I am actually pushing water back into the boiler instead of creating the pressure to push the water through the coffee.
back to top
 View Profile Link to this post
SStones
Senior Member
SStones
Joined: 24 Nov 2012
Posts: 511
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Sat May 18, 2013, 8:36am
Subject: Re: La Pavoni - water entering group early?
 

With the machine fully assembled and cold, remove the showerface and group gasket. raise the lever + Piston, lie the machine on its side and look into the cylinder. Any cracks, grooves or scoring? Does the piston move well? Anything weird?

Take the head apart and see if the piston seals are old and hard. Check for scoring on the inner wall of the head, that basically enlarges the port from the boiler and allows the water to flow at half height. If it's a new one with that plastic cylinder wall, feel the cylinder for a crack.
back to top
 View Profile Link to this post
russel
Senior Member
russel
Joined: 12 Mar 2010
Posts: 464
Location: Los Angeles
Expertise: Professional

Espresso: Conti Princess 2grp, GS/3...
Grinder: Super Caimanos x2, Forte BG,...
Drip: V60, Kalita Wave, Clever,...
Posted Sat May 18, 2013, 9:18pm
Subject: Re: La Pavoni - water entering group early?
 

Look at the pin/hole positions on the lever's yoke.  Is the pin that attached to the piston rod higher or lower than the one that attaches to the group?  The piston pin should closer to the bottom edge of the yoke than the group pin.  If not, your lever is upside down.  This is the simplest cause I can think of for the behavior you described.

Is your LP Pro new or used?  Millenium or Pre-Millenium?
back to top
 View Profile Visit website Link to this post
mixmasta
Senior Member


Joined: 17 May 2013
Posts: 2
Location: London
Expertise: Just starting

Espresso: La Pavoni PL
Grinder: Hario Skerton
Posted Tue May 21, 2013, 6:22am
Subject: Re: La Pavoni - water entering group early?
 

My machine is pre owned and post Millenium. Everything looks pretty solid on the machine, piston moves well and according to the seller, it is only 1 year old.

Checking the pins on the lever yoke, it indeed looks like the one attached to the piston rod is higher than the one attached to the group. I'll see if reversing the lever will do the trick (I probably would have never found that on my own). If not this, I'll check the seals on the piston.

Thanks for the help!
back to top
 View Profile Link to this post
view previous topic | view next topic | view all topics
Discussions > Espresso > Lever Espresso > La Pavoni -...  
New Topics updated topics   New Posts new posts   Unanswered Posts new unanswered     Search Discussion Board search   Discussion Board FAQ faq   Signup sign up  
Not Logged in: Log In to Postlog in
Discussions Quick Jump:
Symbols: New Posts= New Posts since your last visit      No New Posts= No New Posts since last visit     Go to most recent post= Newest post
Forum Rules:
No profanity, illegal acts or personal attacks will be tolerated in these discussion boards.
No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum.
No SEO style postings will be tolerated. SEO related posts will result in immediate ban from CoffeeGeek.
No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum.
Who Can Read The Forum? Anyone can read posts in these discussion boards.
Who Can Post New Topics? Any registered CoffeeGeek member can post new topics.
Who Can Post Replies? Any registered CoffeeGeek member can post replies.
Can Photos be posted? Anyone can post photos in their new topics or replies.
Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts.
Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.
Rancilio Silvia - How to
Step by step guide for easy brewing and steaming with the Rancilio Silvia
www.seattlecoffeegear.com
Home | Opinions | Consumer Reviews | Guides & How Tos | CoffeeGeek Reviews | Resources | Forums | Contact Us
CoffeeGeek.com, CoffeeGeek, and Coffee Geek, along with all associated content & images are copyright ©2000-2014 by Mark Prince, all rights reserved, unless otherwise indicated. Content, code, and images may not be reused without permission. Usage of this website signifies agreement with our Terms and Conditions. (0.179796934128)
Privacy Policy | Copyright Info | Terms and Conditions | CoffeeGeek Advertisers | RSS | Find us on Google+