Yamaha Acoustic Guitar Headstock Repair?

Discussion in 'Luthier's Corner' started by northernguitarguy, Nov 28, 2017.

  1. northernguitarguy

    northernguitarguy SWeAT hOg

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    Hello all you artisans. I hope you guys are well.

    I teach a couple of Music classes in a middle school and my program is primarily based around guitar playing. Our Yamaha guitars are decent enough to learn some cowboy chords. However, every now and then they get damaged. This guitar in question has a broken headstock.

    The break runs along the tuners and did not go through to the other side. My thoughts are to fill the crack with some white glue, slap on a clamp and hope for the best. Am I wise to also drive a screw in through the side of the head to better secure the break? The job doesn't have to be pretty, just effective enough.

    Here are some pics for a better idea and I look forward to a reply or two. Cheers!

    [​IMG]
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  2. WezV

    WezV Member

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    It doesn’t need any more than some wood glue and a clamp. Take the tuners off first.

    A screw isn’t needed
     
  3. Freddy G

    Freddy G V.I.P. Member

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    seconded
     
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  4. Leña_Costoso

    Leña_Costoso Senior Member

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    use wood glue - NOT SUPERGLUE
     
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  5. jkes01

    jkes01 Senior Member

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    A properly glued joint will be plenty strong enough to not need a screw. You can open the crack a little (gently) and using a thin piece of card board, work the glue into the crack. Use Titebond or carpenters glue. Stay away from any of that gorilla stuff. Couple of quick clamps with some wood cauls and a wipe with a damp rag to remove the squeeze out should do the trick. Get them tight, but not too tight so to squeeze out all the glue. Don’t want to starve the joint. Let that sit couple of hours or even overnight.

    Before you reinstall the tuners, you might want to chase the screw holes with the proper sized bit. Be sure to tape the depth on the bit to keep from going al the way through. A little wax on the screw threads will make the screws go in easier.

    Should be just like new :)


    .
     
  6. northernguitarguy

    northernguitarguy SWeAT hOg

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    Thank you, gents. Sounds like a simple fix. Would Elmers white glue from the Art Dept. count as carpenters glue?
     
  7. Leña_Costoso

    Leña_Costoso Senior Member

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    No. Use at least Tightbond II. And use fresh glue too. Jeeze its only a few bucks at Home Depot.

    Better would be hot hide glue, but then you're talking investment for a situation that really doesn't need it.
     
  8. jkes01

    jkes01 Senior Member

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    Middle school, they got a woodshop?
     
  9. Thumpalumpacus

    Thumpalumpacus Senior Member

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    Yeah, Titebond can be had at HD dirt-cheap, and it'll get 'er done.
     
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  10. Thumpalumpacus

    Thumpalumpacus Senior Member

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    What a great idea, brotha's got his thinker working.
     
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  11. northernguitarguy

    northernguitarguy SWeAT hOg

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    Very sadly, no. That’s largely a thing of the past in schools. Damn shame.
     
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  12. northernguitarguy

    northernguitarguy SWeAT hOg

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    Thanks again. Will pick up some glue and giv’er.
     
  13. Leña_Costoso

    Leña_Costoso Senior Member

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    After you get the tuners off take your time to create the right way to clamp the pieces together. I'm not sure if you'd want the fabricate a caul. But at least use some heavy cardboard or leather to prevent the wood from being dented buy the clamps. Be sure to work the glue down into the crack with a toothpick or other fine and disposable apparatus. Clap it up tight wipe off the run out with wet rags, and let it dry for at least a day better yet two
     
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  14. strömsborg

    strömsborg Member

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    Fish glue is also a good choice, it's water soluble even after drying so any squeeze out can be removed with a wet cloth.
     
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  15. northernguitarguy

    northernguitarguy SWeAT hOg

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    Thanks, you guys are kickass!
     
  16. fumblefinger

    fumblefinger Senior Member

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    BTW, the cut off end of a guitar string is a good tool to poke glue with...
     
  17. northernguitarguy

    northernguitarguy SWeAT hOg

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    Thanks guys! I just wanted to report that I restrung the guitar today and it's holding up like there was never a split. It actually sounds better than the rest, must be mojo or glue-tone!:laugh2:
     
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  18. jkes01

    jkes01 Senior Member

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    Awesome, glad it all worked out.
     
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  19. Leña_Costoso

    Leña_Costoso Senior Member

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    I know a lady player who's on a gluetone free diet!
     
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