Bezzera Strega squeak - Page 2

by **solocrema** on Sun Oct 30, 2011 4:57 am

-- removing the top part: have you pulled out the hose at the back?

-- cylinder sleeve: there is none as one can see on the 3rd picture here:
Jumpy lever movement on Bezzera Strega

by **another_jim** on Mon Oct 31, 2011 1:26 am

Thanks. I opened the group. It was easy once the conduit for the microswitch wiring was loosened. There is enough play in the wire that the piston can be laid on top of the machine without undoing the microswitch wiring

BTW, the piston in my group had a ton of grease on it, and slid easily. I'm guessing someone simply forgot to grease the piston on Alf's machine :cry:

by **espressotime** on Sat Mar 10, 2012 1:18 pm

Hope this will take care of it:

http://i143.photobucket.com/albums/r156...003-78.jpg

by **Bak Ta Lo** on Sat Mar 10, 2012 1:23 pm

Wow, new gaskets for the piston? If you take the lever apart would you mind taking some snapshots as you tear it down, swap gaskets, reassemble? Visual reference is a huge help for me!

Where did you order those?

by **espressotime** on Sat Mar 10, 2012 1:30 pm

Ordered at Bezzera .Via dealer.

Piston.
http://i143.photobucket.com/albums/r156...01-108.jpg

by **Bak Ta Lo** on Sat Mar 10, 2012 1:43 pm

I only see Dow 111 applied to one ring?

by **espressotime** on Sat Mar 10, 2012 1:49 pm

Me too.
That's how it came out of the cylinder june 2011.

by **Bak Ta Lo** on Sat Mar 10, 2012 2:22 pm

OK. I have been waffling about the needs to break her down and check this out, that is a good argument to take a look. Did you get the new seals on the dealer or Bezzera's dime?

by **Warrior372** on Sat Mar 10, 2012 2:36 pm

If the squeak continues even after you put new piston seals / lubricant on the piston you might want to start looking at the alignment of the lever assembly. Misalignment is a very common cause of a chronically squeaky lever group.

by **espressotime** on Sun Mar 11, 2012 6:03 am

So how do you align a piston in a cylinder?


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