Anyone know what hex wrench for Emerald truss rod?

[byudzai]

I'm a truss rob n00b -- anyone know which size allen wrench to use on Emeralds? Or do I need a dedicated tool?

[Captain Jim]

Did you look in the case (gig bag)? Each of my Emeralds had the hex wrench in the case.

[kdcee]

and got an answer. 4mm

[byudzai]

Boom! You guys rock! Found the wrench in my bag and have got most of the buzz out of the 5th and 6th strings with maybe half a turn. The screw was, as described by others, loose.

[mountainmaster]

That seems strange. Tightening the truss rod straightens the neck and consequently lowers the strings, which would create more string buzz.

But perhaps it was the loose screw itself that was rattling?

[byudzai]

Originally Posted by mountainmaster

That seems strange. Tightening the truss rod straightens the neck and consequently lowers the strings, which would create more string buzz.

But perhaps it was the loose screw itself that was rattling?

hmmmm.... it definitely was string buzz. i told kevin and alistair about it and he told me to stand behind the guitar and turn the wrench a quarter to half turn counter-clockwise. is it possible they have some weird inverse truss rod?

[mountainmaster]

Counter clockwise means loosening the truss rod. So the screw must have been loose while the truss rod was in a tightened position.
I don't know enough about truss rods to explain this, but at least now it makes sense.

[seamusknives]

Sounds like the nut might be file-cut a bit deep for those two strings. Like others have said, tightening (straightening) the truss rod normally would make the buzz worse.

[ac]

Double-action truss rod I suppose.

[byudzai]

Originally Posted by mountainmaster

Counter clockwise means loosening the truss rod. So the screw must have been loose while the truss rod was in a tightened position.
I don't know enough about truss rods to explain this, but at least now it makes sense.

I hope I'm explaining what I did accurately... I was looking down the neck from the headstock toward the body. Inserted hex wrench. Turned it counter-clockwise a couple turns which seemed to engage the screw. Kept turning it total of maybe a half step, got tighter and tighter, which seemed to produce a tiny bow in the neck that has almost eliminated the buzz.

I'll leave it to y'all smart'ns to figure out what's going on under the hood.

[DavidE]

Originally Posted by byudzai

I hope I'm explaining what I did accurately... I was looking down the neck from the headstock toward the body. Inserted hex wrench. Turned it counter-clockwise a couple turns which seemed to engage the screw. Kept turning it total of maybe a half step, got tighter and tighter, which seemed to produce a tiny bow in the neck that has almost eliminated the buzz.



I'll leave it to y'all smart'ns to figure out what's going on under the hood.

That would loosen the truss rod. Is it a double action truss rod?