Screw threads on replacement tuning machine won't catch

Discussion in 'Hardware, Setup & Repair [BG]' started by BassMan7530, Sep 23, 2010.

  1. BassMan7530


    May 2, 2009
    While playing my bass, I noticed my D-string was flat, so I kept twisting the tuning knob little by little, but heard no difference in pitch. Eventually the post the string wraps around snapped off from the rest of the mechanism. One of the following days I went to my local shop and bought a replacement tuner. I figured I'd just do it myself. Simple, right? Well, not so much...

    I took out the screw in the back of the old, broken tuner very carefully, being sure not to ruin the wood to the point where the threads of the new screw wouldn't be able to catch. Despite this, the new screw won't stay put. The walls of the hole where the screw is supposed to sit seem to be completely flat and smooth, so there's no possible way a new screw will fit in like the old one, because the screw threads have nothing to sit in.

    I've had this bass since autumn of 2006; is 4 years considered pretty average for tuner life? I also had my B-string tuner break the same way on me just a couple months ago as well. I'm expecting them all to go sometime soon now, but who knows if this problem is even repairable.

    Also, before anyone asks, I havn't used any freaky tunings or made any radical adjustments to the truss trod or anything like that. I've always used BEADGC tuning.

    Anyways, I don't think this is at all repairable, but if it is, I'd like to give it a shot. I'm thinking I'll just have to buy a new bass, but if that can be avoided I'm all for it. Thanks for the help everyone.
  2. CPike


    May 28, 2005
    Dallas, TX
    Put a drop of white glue in the screw hole, snip the end of a round toothpick and jam it in. After the glue dries, carefully slice the toothpick off flush with the headstock. Redrill a pilot hole with a tiny drill bit, no more than 1/2 the diameter of the screw. Slowly twist the screw into the new hole to tap the new threads, and you should be in business...

  3. Primary

    Primary TB Assistant

    Here are some related products that TB members are talking about. Clicking on a product will take you to TB’s partner, Primary, where you can find links to TB discussions about these products.

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