2014 Gibson Thunderbird: Truss Rod Adjustment Question

[bylar13]

I have a 2014 Gibson Thunderbird that has been in my possession for about a year now. I bought the bass used and have no history prior to my owning it.

When I received it (via mail) it had virtually no tension on the the truss rod. I could easily move the truss rod nut with my fingers and the neck had a significant forward bow.

Using a 34" straight edge, notched for frets, I have just again applied more tension. I use a feeler gauge @ .015 at the 7th fret to establish relief that if comfortable for me.

That said, this is the 5th time I have had to adjust the truss rod back to those specs in the almost year time frame. Changes in weather seem to be the culprit but the relief will increase dramatically and quickly. I use Ernie Ball 105-55 stainless strings and always store the bass in its case.

Am I missing something or is this just a sensitive bass?

 

[charlie monroe]

Mostly Builders here.

You probably want the setup and repair pages.

 

[sissy kathy]

Wow, I wouldn't expect that much sensitivity from a laminated neck. Are you constantly tightening the truss rod or is it back and forth?

 

[bylar13]

I have tightened it primarily. Once or twice I had to back it off a bit because of fret buzz (over-tightening) on the first few frets.

 

[sissy kathy]

It sounds like a normal tighten, loosen cycle to me: T L T L T. It doesn't sound like you have a bad neck, just a sensitive one.

I don't know how paranoid I am being, but if I was in your position I would get a washer under that truss rod nut to isolate the twisting movement of the nut from the wood.

 

[Lownote38]

Call up Henry at Gibson. I'm sure he'd be glad to help you. It's best if you yell at him, too. Actually, I'm joking (hopefully obviously so). Henry would yell back at you even louder, and you'd probably have permanent hearing damage.

I agree with sissy kathy in that you probably have a sensitive neck. Maybe Henry yelled at it, and made it overly sensitive. Anyway, I've had a few Fender necks like that, and I always just made sure I had the adjustment tools I needed wherever I went just in case the neck moved.

 

[96tbird]

It sounds like a normal tighten, loosen cycle to me: T L T L T. It doesn't sound like you have a bad neck, just a sensitive one.

I don't know how paranoid I am being, but if I was in your position I would get a washer under that truss rod nut to isolate the twisting movement of the nut from the wood.

Gibson truss rods should ( used to) have a bearing plate under the nut. The nuts are small diameter so it’s required but adding a washer isn’t a wrong idea unless it moves the nut out past the end of the rod.