Truss Rod Noise

Discussion in 'Guitar Building' started by Knarbens, May 6, 2017.

  1. Knarbens

    Knarbens Well-Known Member

    Joined:
    Apr 18, 2013
    Messages:
    984
    Likes Received:
    607
    Location:
    Saxony, Germany
    Hey everyone. I decided to post here, because it's not a repair, but on a neck of one of my builds.

    I use two way adjustable double rods like this one. When I install them I make sure both anchor blocks an the top and back fit in tight and I also insert some silicone in the slot.

    Still one neck has quite some rattle to it when I knock along the neck. That happens when the truss rod is loose or adjusted to create a back bow. When I tighten it in the other direction the rattling is gone, but the trussrod will propably never been adjusted that way.

    May question is: Is there a way to fix this? I have not installed the frets yet. Any help is much appreciated.
     
  2. Adam

    Adam Well-Known Member

    Joined:
    Jun 6, 2013
    Messages:
    1,511
    Likes Received:
    884
    Location:
    Austin, TX
    Only thing to do is take the fretboard back off with heat. Board might curl up but it's not hard to flatten back out. I would probably put some thin foam behind the rod, right in the middle.
     
  3. Chris Pile

    Chris Pile Member

    Joined:
    Jan 10, 2016
    Messages:
    90
    Likes Received:
    15
    Location:
    Wichita, KS
    Or wrap it with tape.
     
  4. Duplex Dave

    Duplex Dave Active Member

    Joined:
    May 28, 2013
    Messages:
    443
    Likes Received:
    91
    Location:
    West
    You can also inject some thin silicone. In America it's the silicone you can get at an auto parts store for sealing windshields. If you have a fingerboard dot or inlay in the center of the neck knock it out and drill down to the rod, sometimes you need to do this in 2 areas. You can also go through a fret slot. Find a plastic syringe with a metal tip. You can also thin it down even more with some Naptha or other solvent.
     
  5. Knarbens

    Knarbens Well-Known Member

    Joined:
    Apr 18, 2013
    Messages:
    984
    Likes Received:
    607
    Location:
    Saxony, Germany
    Since the frets aren't in yet, I'll not remove the fretboard, but try to fix it by drilling into one or two fret slots.

    I did a test today. I thinned down some silicone with mineral spirits and pushed it through a hollow needle. Worked quite well.

    The only problem I found was the thinned silicone doesn't stick to wood very well. It dried a bit briddle and I fear it could fall off one day in the truss rod channel?
     
  6. Chris Pile

    Chris Pile Member

    Joined:
    Jan 10, 2016
    Messages:
    90
    Likes Received:
    15
    Location:
    Wichita, KS
    Fall to where? You realize there is almost NO ROOM in the channel? If it did, so what? You are overthinking this.
     
  7. Adam

    Adam Well-Known Member

    Joined:
    Jun 6, 2013
    Messages:
    1,511
    Likes Received:
    884
    Location:
    Austin, TX
    I wouldn't worry about it unless it did become an issue. You probably have years to never before anything happens.
     
  8. Knarbens

    Knarbens Well-Known Member

    Joined:
    Apr 18, 2013
    Messages:
    984
    Likes Received:
    607
    Location:
    Saxony, Germany
    So I was able to silence the truss rod.

    Took me multiple attempts. I couldn't succeed with small holes in the fret slots, but was able to insert a fair amount of thinned silicone through a whole I drilled from the bottom of the neck heel.
     

Share This Page