When A String Change Goes Wrong

Discussion in 'Project Depot' started by Spike, Feb 13, 2019.

  1. Spike

    Spike Well-Known Member

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    A friend of mine asked me to change the strings on his old Regal acoustic guitar that he has had since a teenager. Of course I said, "Sure". I found out very quickly that the only thing holding the bridge on was the bridge pins so, I jumped right into my first bridge repair:
    1 Bridge after Removing Strings_400.jpg
    Next was scraping the bridge and body:
    2 Body Scraped_400.jpg
    Once that was done, I found the sound hole tag inside the body. Cool find. I'll glue that back on later:
    3 Soundhole Tag_400.jpg
    Now to glue the bridge and body:
    4 Bridge and Body Glued_400.jpg
    Clamps in place after a couple of dry runs:
    5 Clamps In Place_400.jpg
    Needed to ream the bridge pin hole with a tapered reamer to clear all the glue:
    6 Bridge Pin Reamer_400.jpg
    Strung up with light gage strings/tag glued back in place. I tuned it a half step down just because this was my first bridge repair...
    8 Finished_Body_Tag In Place_400.jpg
    7 Finished_400.jpg
    9 Finished_Body_Full_400.jpg
    10Headstock_400.jpg
     
    Last edited: Feb 13, 2019
  2. tomringg

    tomringg Well-Known Member

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    Nice job!
     
  3. Fat Jack

    Fat Jack Well-Known Member

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    What, no piezo under the bridge?:sneaky:
     
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  4. Mickey

    Mickey Gandalf the Intonationer

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    Just curious Spike, did you check out the bridge plate while working on it?
    On flat top guitars that old the bridge plate is usually pretty well chewed up
    by years of string balls chewing into them. They are usually of hard maple
    and less frequently rosewood but on cheap guitars they may be spruce or
    some unknown plywood or even particle board. On the Agile EP-1 that I had
    it was actually spruce plywood. The luthier was filling and redrilling the bridge pin holes
    as they were offset from the neck (it was a b-stock) when he found the spruce plywood bridge plate.
     
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  5. Spike

    Spike Well-Known Member

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    You know, I did think about that. I felt around under the bridge plate and while there were some indentations, it didn’t feel that bad.

    I did watch a bridge plate replacement video and came to conclusion that was it way above my skill level at this time anyway. :)
     
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  6. mozz

    mozz Well-Known Member Supporting Member

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    What are the 2 Phillips head screws for?
     
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  7. Mickey

    Mickey Gandalf the Intonationer

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    If you have a small mirror (say 2"x3" or 3"x4") you can place it directly under the bridge plate laying on the bottom, look thru the bridge pin holes while placing the mirror
    then shine a light from a small flashlight directly on the bridge plate and the mirror will give you a good look at the bridge plate itself. Try it some time when
    you have all the strings off a flat top, you might be surprised how quickly they get chewed up (especially on asian guitars.) :)
     
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  8. Mickey

    Mickey Gandalf the Intonationer

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    If I may venture a guess, saddle height adjustment. I once had a Gibson acoustic with a bridge that looked like that
    and saddle height was what they did. I've had a couple of luthier friends who called them "tone sucking screws."
    But they made money removing all that, filling the bridge with rosewood, routing for a conventional saddle and
    finally installing a bone saddle. :)
     
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  9. rmfroyd

    rmfroyd Well-Known Member

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    Quite crafty!
     
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  10. toomanycats

    toomanycats Well-Known Member

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    I love threads like this. It gets right to the heart and soul of what AGF is about.
     
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  11. mozz

    mozz Well-Known Member Supporting Member

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    I asked because it looks like there is glue on them now.
     
  12. nomadh

    nomadh Well-Known Member

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    No good deed...........

    Good work.
    I have those tone suck screws on my Sigma
     
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  13. Spike

    Spike Well-Known Member

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    Spot on Mickey.
     
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  14. Spike

    Spike Well-Known Member

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    Good eye mozz. There was. Cleaned them up the best I could but as you would expect, the minute pressure was put on the clamps, the glue oozed all over the place underneath the bridge, including the adjustment screws.

    Moving them in and out every time I walked by kept them from sezing up.
     
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  15. jamdogg

    jamdogg Well-Known Member Supporting Member

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    Great job!
     
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  16. rmfroyd

    rmfroyd Well-Known Member

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    So...I have a 66 j45 that needs the bridge replaced. I will just send it right up to you. Cheap almost free. Right?
     
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  17. andrewsrea

    andrewsrea Well-Known Member

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    Quality workmanship!
     
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  18. idiotsdelight

    idiotsdelight Well-Known Member

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    I have an old acoustic (Alvarez?) at my sisters in IA that has those. I'll be there in 3 weeks. I was actually grateful that it had them as when she gave it to me the action was high & I didn't feel like farting with it.
     
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