[pianotech] Young Chang upright jack springs choice

John Dorr a440 at bresnan.net
Mon Jan 19 19:19:22 PST 2009


John Formsma wrote:
Did you first try strengthening the springs?  Sometimes I have some luck with 
that, but mostly where the original springs were of better quality. I would 
also replace these YC springs after 20 years. It's time.
-- 
JF

Yes, John it's time.  No, I didn't try strengthening the OEM springs because 
the problem that I'm trying to fix is that they're breaking.  Two of them 
broke - the purpose of the original service call - and several others look 
bent.

John, you didn't mean to strengthen the new ones, did you?  I took it to mean 
that you were talking about the old ones.

Thanks for the replies, John and Dean (voting by proxy for Ric! LOL)

John Dorr
Helena, MT







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