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02-19-2013, 03:08 PM
| | | | Truss rods maxed out, neck still bent - PLEASE HELP !!!!
Hi there.
I donīt know much about instrument setup, so please forgive my probably stupid question....
I have the truss rods on my bass (almost) maxed out (maximum tension) and the neck is still bent into a U-shape. Is there anything a luthier could do with that, or thereīs no point asking him and I should just use that instrument as firewood? 
Itīs a 6-string Peavey Grind Bass, neck thru, string thru, mahogany, dual truss rod....
Thank you in advance for any advice. |
02-19-2013, 03:17 PM
| | Registered User | | Join Date: Aug 2007 Location: Waterford, MI | | | Is it a two way adjustable truss rod?
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02-19-2013, 03:26 PM
| | | | ....sorry man, no idea.... it just says "DUAL truss rod". Maybe if you exlain to me, how should the "two way" rod look/work.... ? |
02-19-2013, 03:27 PM
| | Registered User | | Join Date: Sep 2011 Location: ca | | | I am unfamilliar with a dual truss rod but I have added a washer under the truss nut to my EBMM stingray to get a little more tension. Maybe this can be done. It's not firewood! |
02-19-2013, 03:32 PM
|  | Registered User | | | | | I would get a luthier to look at it. Could be a natural bow in your neck. In which case it is playable but the action will be high forever. I had a similar thing happen to a warwick thumb BO 6 string. Or one of the truss rods are broken. I personally am not a fan of dual truss rods at all. Dual truss rod means their are two rods in the neck. Instead of the usual one. |
02-19-2013, 03:32 PM
| | | | a washer? and how thick?
btw: where is the nut on a neck-thru bass? Iīve only seen in it on bolt-on necks, but just on pictures, never disassembled the neck myself... do the neck-thru instruments have that nut at the other end of the neck, next to the head? |
02-19-2013, 03:37 PM
| | | Quote:
Originally Posted by Kukkiwanblack  I would get a luthier to look at it. Could be a natural bow in your neck. In which case it is playable but the action will be high forever. I had a similar thing happen to a warwick thumb BO 6 string. Or one of the truss rods are broken. I personally am not a fan of dual truss rods at all. Dual truss rod means their are two rods in the neck. Instead of the usual one. | yep, it is playable, but the action is really high... funny thing is, that not equally on both sides. on the B-string side the neck is almost straight, only sligtly bent between approx. the 12th and 24th fret.... the action here is relatively ok.... but on the C-string side the whole neck is bent, from 0 to 24.... and the action is bloody high....
OK, I show it to the luthier, just needed to have an idea in advacne, whether thereīs any point bothering him at all.... |
02-19-2013, 03:44 PM
|  | Non Serviam | | Join Date: Aug 2012 Location: Schenectady NY | | Quote:
Originally Posted by Airfish a washer? and how thick?
btw: where is the nut on a neck-thru bass? Iīve only seen in it on bolt-on necks, but just on pictures, never disassembled the neck myself... do the neck-thru instruments have that nut at the other end of the neck, next to the head? | OK, I'm confused. How do you know the truss rod is maxed if you haven't located the nut to tighten it?
There is usually a small plastic cover on the headstock, under the strings. This is the truss rod cover. You would remove that to adjust the truss rod.
Check this, and let us know if there is one nut under there, or two. Dual truss rod would usually mean there are two (not uncommon on a 6er). A dual-action truss rod would be something else.
Let us know, and we'll help further. Don't burn that bass yet!
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02-19-2013, 03:44 PM
| | Registered User | | Join Date: Sep 2011 Location: ca | | | Unfortunately I have no experience with neck through basses. The washer is a great fix for fender style basses. I am sure a luthier will be able to help you out. Good luck!! |
02-19-2013, 03:47 PM
| | Registered User | | Join Date: Sep 2011 Location: ca | | Ahhh ... so a dual truzs rod would be two rods..lol. makes total sense now.......  |
02-19-2013, 03:48 PM
| | | | oh, you mean THAT nut under the truss rod cover? sure, I seen that one and tried to adjust the neck with it - I mean with them, because thereīs really two of them.... so I came to a point where they stopped (resistance too high, didnīt want to force them any more) and the neck is still bent, as I described... |
02-19-2013, 03:54 PM
| | Registered User | | Join Date: Aug 2007 Location: Waterford, MI | | Quote:
Originally Posted by Airfish oh, you mean THAT nut under the truss rod cover? sure, I seen that one and tried to adjust the neck with it - I mean with them, because thereīs really two of them.... so I came to a point where they stopped (resistance too high, didnīt want to force them any more) and the neck is still bent, as I described... | Did you try turning the treble side truss rod in the opposite direction while leaving the bass side alone?
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02-19-2013, 04:00 PM
| | | Quote:
Originally Posted by carvinbassplyr Did you try turning the treble side truss rod in the opposite direction while leaving the bass side alone? | nope.... I turned them both in the same direction, bass, treble, bass, treble.... in small steps, like 1/8 of a turn, or even less.... now they both are stopped, the bass side bent less, the treble side more, as I wrote previously....
So you advise me to release the tension on the treble side without releasing it on the bass side? Am I getting your point? |
02-19-2013, 04:03 PM
| | Registered User | | Join Date: Aug 2007 Location: Waterford, MI | | Quote:
Originally Posted by Airfish nope.... I turned them both in the same direction, bass, treble, bass, treble.... in small steps, like 1/8 of a turn, or even less.... now they both are stopped, the bass side bent less, the treble side more, as I wrote previously....
So you advise me to release the tension on the treble side without releasing it on the bass side? Am I getting your point? | Basically...
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02-19-2013, 04:07 PM
| | | | well, sounds like a paradox, I canīt understand how I could straighten that treble side with applying less tention to it.... |
02-19-2013, 04:10 PM
| | Registered User | | Join Date: Nov 2007 Location: Pennsylvania | | Quote:
Originally Posted by Airfish oh, you mean THAT nut under the truss rod cover? sure, I seen that one and tried to adjust the neck with it - I mean with them, because thereīs really two of them.... so I came to a point where they stopped (resistance too high, didnīt want to force them any more) and the neck is still bent, as I described... | I've never maxed a truss rod out, but they don't just spin freely, it does require some force to turn them. If they were spinning freely it would mean the truss rod was applying no tension whatsoever. Is it hard to turn, or impossible to turn? |
02-19-2013, 04:10 PM
|  | Yeah, I've got the moves like Jagger. | | Join Date: Oct 2006 Location: G.R. MI | | | Loosen the string tension.
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02-19-2013, 04:10 PM
|  | Registered User | | Join Date: Apr 2011 Location: West Coast | | Give this video http://www.youtube.com/watch?v=jfAp6EYu9ow a look-see. He uses "back-clamping" to assist the truss rod(s) during tightening.
Ive used this method on a floppy Squier J bass neck with great results (I was very close to just using the neck as a club weapon). But now it plays great.
I'll be playing a gig with it about 5 hours!  |
02-19-2013, 04:11 PM
| | | Quote:
Originally Posted by Meyatch I've never maxed a truss rod out, but they don't just spin freely, it does require some force to turn them. If they were spinning freely it would mean the truss rod was applying no tension whatsoever. Is it hard to turn, or impossible to turn? | They were always a bit hard to turn, never spinning completely freely. And now they are impossible to turn....
Last edited by Airfish : 02-19-2013 at 04:14 PM.
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02-19-2013, 04:13 PM
| | Registered User | | Join Date: Oct 2011 Location: Richardson, Texas | | | Try lower gauge (thinner) strings?
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