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 Post subject: Damaged truss rod nut
PostPosted: Fri Nov 08, 2019 7:03 pm 
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Got an Epiphone Texan (adjustable bridge) on the bench, truss rod is adjusted by what seems to be a 5mm allen headed barrel nut.
Seems to be a bit rounded off (not by me) and stiff.
I thought SM sold tapered allen keys for this kind of problem, but don't seem available.
Any suggestions?

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PostPosted: Fri Nov 08, 2019 7:51 pm 
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Colin North wrote:
Got an Epiphone Texan (adjustable bridge) on the bench, truss rod is adjusted by what seems to be a 5mm allen headed barrel nut.
Seems to be a bit rounded off (not by me) and stiff.
I thought SM sold tapered allen keys for this kind of problem, but don't seem available.
Any suggestions?


They do have tapered profile hex keys in the form of screwdrivers. A very worthwhile addition to any tech's toolbox. Saved my butt countless times. But they are only available as hex keys.


Pierre


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PostPosted: Fri Nov 08, 2019 8:20 pm 
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Cant get a straight screwdriver type into the nut pocket

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PostPosted: Fri Nov 08, 2019 9:38 pm 
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Please post pics so we can help...


Pierre


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PostPosted: Fri Nov 08, 2019 9:46 pm 
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Have you tried SAE wrenches? My shop notes say that both 1/8 and 9/64 are used on some t/r's.


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PostPosted: Fri Nov 08, 2019 9:59 pm 
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Older (60s) Texans would have used the same truss rods as Gibson’s, with nut adjusters. Recent, Asian production likely uses the ubiquitous 4mm hex truss rods. A pic will help a lot.


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PostPosted: Sat Nov 09, 2019 6:48 am 
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My experience with newer epi truss rods hasn't been good. The design is weak....using the reverse function of the 2 way rod unassisted usually results in breakage. The nuts are soft and strip quite easily. So again, always bend the neck by hand and take up slack with the rod when adjusting these.

Once stripped or the retainer broken.... It's replacement time.

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PostPosted: Sat Nov 09, 2019 7:25 am 
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It's a 60's Texan, its a 5mm barrel nut on the truss rod, 6mm thread on single action truss rod and it's out.
Owner just turned up on my doorstep and when I showed him he gave me the courage to give it a tweak out (with lubrication)


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Last edited by Colin North on Sat Nov 09, 2019 8:17 am, edited 1 time in total.


These users thanked the author Colin North for the post: Smylight (Sat Nov 09, 2019 8:30 am)
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PostPosted: Sat Nov 09, 2019 7:57 am 
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P.S. Found the SM wrenches I had searched for, but I was using the wrong search terms.
https://www.stewmac.com/Luthier_Tools/Tools_by_Job/Tools_for_Truss_Rods/Gripper_Truss_Rod_Wrenches.html

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These users thanked the author Colin North for the post: Smylight (Sat Nov 09, 2019 8:30 am)
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PostPosted: Sat Nov 09, 2019 8:31 am 
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Colin North wrote:
P.S. Found the SM wrenches I had searched for, but I was using the wrong search terms.
https://www.stewmac.com/Luthier_Tools/Tools_by_Job/Tools_for_Truss_Rods/Gripper_Truss_Rod_Wrenches.html


Congrats! Now that it's out, I strongly suggest you replace it...


Pierre



These users thanked the author Smylight for the post: Colin North (Sat Nov 09, 2019 8:43 am)
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PostPosted: Sat Nov 09, 2019 8:44 am 
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Already ordered.
Hen's teeth apparently, but got one similar but slightly shorter, will pack out with a couple of washers all being well otherwise.

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