The Acoustic Guitar Forum

Go Back   The Acoustic Guitar Forum > General Acoustic Guitar and Amplification Discussion > Build and Repair

Reply
 
Thread Tools
  #1  
Old 03-18-2018, 08:55 PM
Wooly Wooly is offline
Registered User
 
Join Date: Jul 2007
Location: Alberta, Canada
Posts: 657
Default Double Action Truss Rod Question?

Is it common to have a double action truss rod tightened counter clockwise in order to bow the neck upwards?

The reason I ask is because on my Seagull Maritime mini jumbo I was getting some fret buzz on about the 4th to 7th fret especially on the B and high E. Relief measures at .004 so I thought I needed to give the neck a little more bow. In order to do that, the rod was starting to tighten while turning counter clockwise. It helped the buzz but you would think the rod should be counter acting the pull of the strings and would need to be turned clockwise?

On that note, I do have this guitar tuned to DADGAD with 11's on it. Would that have anything to do with it?
__________________
Larrivee OM-03
Seagull SWS Maritime Mini Jumbo
Alvarez AP70SB Parlor
Alvarez AF60SHB
Ibanez Concord Model 684
La Patrie Concert
Seagull Concert Hall Mahogany
Harmony H1215. Late 50's I think.
Reply With Quote
  #2  
Old 03-18-2018, 11:08 PM
mirwa mirwa is offline
Registered User
 
Join Date: Sep 2013
Posts: 2,265
Default

I sent you a PM on how truss rod works and is made

Steve
__________________
Cole Clark Fat Lady
Gretsch Electromatic
Martin CEO7
Maton Messiah
Taylor 814CE
Reply With Quote
  #3  
Old 03-19-2018, 05:12 AM
Mbroady's Avatar
Mbroady Mbroady is offline
Charter Member
 
Join Date: May 2008
Location: Asheville via NYC
Posts: 4,197
Default

Quote:
Originally Posted by mirwa View Post
I sent you a PM on how truss rod works and is made

Steve
Why not share with everyone
__________________
For Sale/trade - Furch D25SR Killer Dread with 1 11/16 nut

MJ Franks OMs, Furch Vintage 3 D-SR, Furch D25SR-Custom, Furch D32-LM,
Voyage Air VAD-2, Rainsong H-WS1000N2T, Tacoma Papoose, 72 Fender Stat
Reply With Quote
  #4  
Old 03-19-2018, 11:13 AM
LeightonBankes LeightonBankes is offline
Registered User
 
Join Date: Feb 2016
Posts: 282
Default

It's pretty simple. Turning the nut clockwise shortens the threaded side of the truss rod which is UNDER the solid bar of the truss rod, thereby DECREASING the bow of the neck caused by the tension of the strings. Turning the nut counterclockwise increases the length of the threaded rod which allows the neck to bow more (ie gives it more relief)
...and yes, .011's and detuned tuning causes the strings to have less tension, which in turn causes the neck to have LESS relief
__________________
disclaimer I don't know anything, everything I say is a guess, estimate, hearsay, or opinion. For your safety, don't assume anything I say is a fact. Research

Last edited by LeightonBankes; 03-19-2018 at 11:15 AM. Reason: more info
Reply With Quote
  #5  
Old 03-19-2018, 05:06 PM
mirwa mirwa is offline
Registered User
 
Join Date: Sep 2013
Posts: 2,265
Default

Quote:
Originally Posted by Mbroady View Post
Why not share with everyone
Forum rules, you are not allowed to link to your commercial website unless you are sponsor, I was informed said situation from a moderator previously on a link I provided on how to do something, as I was unaware of the rules and as I am now aware, I stick to them.

Steve
__________________
Cole Clark Fat Lady
Gretsch Electromatic
Martin CEO7
Maton Messiah
Taylor 814CE

Last edited by mirwa; 03-19-2018 at 06:36 PM.
Reply With Quote
Reply

  The Acoustic Guitar Forum > General Acoustic Guitar and Amplification Discussion > Build and Repair

Thread Tools



All times are GMT -6. The time now is 05:08 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright ©2000 - 2018, The Acoustic Guitar Forum
vB Ad Management by =RedTyger=