Pianotech

  • 1.  Rendering solutions

    Member
    Posted 07-05-2019 10:53
    It was interesting reading the thread on metal to metal friction. It raised a lot of questions. 
    I was tuning an old Heine, about 100 years old and had E1 pop. It started flat and was sliding. Didn't give me any warning. It was still 20 cents flat when it broke. I figure someone else stressed it and it broke on me. Still, having a bass string break just doesn't sound good to the client.
    When I had the action out to tie the bass wire I replaced two broken wires in the treble.
    I'm looking for solutions, Not just chemicals. I figure it's not good to have gravity pulling the chemical into the bass windings. I would like to try some of Jon Page's lube but does it travel? 
    My first thought is to drop the pitch in the bass wire and with a rolled piece of sandpaper, Clean the wire. 
    The piano is in an Irish pub so I'm going back today to finish the tuning. 
    Also it has the steel wound strings in the duplex section. I was under the impression they had replaced the copper ones in WW2 to get copper for the war effort. I see they might be original iron clad. 
    Like was mentioned, Each piano of that age will be unique and require modification of technique.
    I'm looking for a longer list of tools to use.

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    Keith Roberts
    owner
    Hathaway Pines CA
    209-728-2163
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  • 2.  RE: Rendering solutions

    Posted 07-05-2019 12:14
    CBL Will not creep unless you apply too much.

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    Regards,

    Jon Page
    mailto:jonpage@pianocapecod.com
    http://www.pianocapecod.com
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  • 3.  RE: Rendering solutions

    Registered Piano Technician
    Posted 07-05-2019 18:43
    And even if it did, and though I have heard others say something about it being bad to get into the windings, I have NEVER seen or heard any corroboration or evidence of this, so I have no problem letting a little get to the windings. Of course I am talking about accepted CPL and CBL solutions, not WD40 or mineral oil based stuff.

    Does anyone anywhere have proof that a little protek or CBL actually damages bass strings?  I'm interested.

    Pwg

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    Peter Grey
    Stratham NH
    603-686-2395
    pianodoctor57@gmail.com
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  • 4.  RE: Rendering solutions

    Member
    Posted 07-05-2019 20:39
    I had Jon send me some. The protek really helped this one. And the reminder to drop pitch in all cases. Sometimes you hear it with the first flex of the pin.
    Jon can clarify but he said he stopped a jangly bass string but it went dead and that was better. He urges a method that is careful in the application

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    Keith Roberts
    owner
    Hathaway Pines CA
    209-728-2163
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  • 5.  RE: Rendering solutions

    Posted 07-05-2019 22:05
    A rattling C1 on a Yamaha vertical. Twisting does not work.
    I wiped on a little CBL and it deadened the string, a dull thud is far better than a raucous rattle.
    I'll hear how the string is at the next tuning.

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    Regards,

    Jon Page
    mailto:jonpage@pianocapecod.com
    http://www.pianocapecod.com
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