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La San Marco 85-16M resto troubleshooting
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mattdubyou
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mattdubyou
Joined: 31 Oct 2012
Posts: 1
Location: Seattle
Expertise: Just starting

Posted Wed Oct 31, 2012, 3:16pm
Subject: La San Marco 85-16M resto troubleshooting
 

Howdy folks, I have a LSM 85-16M that I've in the process of restoring for a while, and was hoping for some advice on a critical step.

I got it in terrible shape from a government surplus auction (no joke, this is a government espresso machine).  Anyway, I tore it apart, cleaned up and descaled everything, making sure to replace vital gaskets & other parts along the way.

Anyway, I now have it fired up on top of my washing machine, and am trying to get it to pour a shot with no avail.  when I activate a group head, I get a lot of water out of the exhaust tube, and very little out of the head itself.

The boiler is filled halfway, pressure is reading about 1.7, and a new pump head installed.  The pump motor may be the weak link, as it doesn't seem to quite get going (starts and stops), but keep in mind I know very little about these things.

Any advice or words of wisdom?
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marrone
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Joined: 5 Sep 2003
Posts: 195
Location: Bakersfield
Expertise: I love coffee

Espresso: Isomac Tea
Grinder: Pasquini, Spong
Roaster: Hot Top, Fresh Roast +
Posted Sun Dec 2, 2012, 10:23am
Subject: Re: La San Marco 85-16M resto troubleshooting
 

Hopefully you've found the trouble by now.

If not, look to the solenoid valves at the group heads. The 'spools' might be stuck, and the would cause the symptoms you encountered.

Have fun with your "new" machine.
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