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Post subject: Jazzmaster VM - neck straight
Posted: Sun Jul 14, 2019 7:19 am
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hi,

I have a Jazzmaster VM, the neck is far too straight, when I test the neck relief pressing the 1st and last fret on the E string, the fret and the string are touching each other. I tried to loose the truss rod, it was very loose right after the first 1/4 turn, I tried to loosen it even more, up to 2 entire turning of the rod, but no change.
I am using 0.11 strings and I tuned them one tune up, no change so far.
I tried to loosen the truss rod even more, but now I start to feel some resistance, that is weird, as it felt really loose so far.

Any suggestions?


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Sun Jul 14, 2019 3:52 pm
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You may need to wait few hours until the neck move. I see on some guitars it may take 12 hours and more.
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"I tried to loosen the truss rod even more, but now I start to feel some resistance, that is weird, as it felt really loose so far."

- This is not normal, any wood scrap on the thread ?

I have a 1969 Strat, the neck stay straight, no concave. Truss rod nut is loose since many years.
Truss rod have ( almost ) no secret to me. I have fixed many guitars's truss rod over years and replace one truss rod on a neck


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Sun Jul 14, 2019 7:43 pm
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stratele52 wrote:
You may need to wait few hours until the neck move. I see on some guitars it may take 12 hours and more.
___________________


ok, now it is even more than 12 hours, but I see no change yet
stratele52 wrote:
_
"I tried to loosen the truss rod even more, but now I start to feel some resistance, that is weird, as it felt really loose so far."

- This is not normal, any wood scrap on the thread ?

I have a 1969 Strat, the neck stay straight, no concave. Truss rod nut is loose since many years.
Truss rod have ( almost ) no secret to me. I have fixed many guitars's truss rod over years and replace one truss rod on a neck



I do not see any wook scrap next to the tross rod screw or anywhere else on the neck.

thanks for your answer.


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Mon Jul 15, 2019 1:42 am
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With loose truss rod, neck should be concave we know that.
If it not working, something wrong with neck. Can you return back on warranty ?

May some heat on the fret board will fix the issue ? Clamps on the neck and using a steam iron ?
I never try.


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Mon Jul 15, 2019 2:56 am
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The truss rod should be a standard model - only guessing by memory here, so check the guitar before proceeding. But with those standard truss rods, it's possible to take the nut off totally for cleaning & lubing.
EDIT: There was some discussion on that subject previously, so to give an idea what may lay ahead: https://forums.fender.com/viewtopic.php?f=7&t=116520 and the link there: https://forums.fender.com/viewtopic.php?f=6&t=49831

Temporarily, you could experiment with thick strings - for a Jazzmaster, that would be a .013 or thicker set, IMHO.
And it's also possible to help the neck to bend. Sometimes just hand pressure does the trick, if the truss rod is stuck on finish residue & such. The bold might take the truss rod nut off first, and give a little hammer tap at the end of the rod to ensure it's free, but I wouldn't recommend that to anybody. :wink:
Sometimes clamping and heating may be needed. For this clamp&heat method, the result may not last, and usually that's a job for only the very bold or the pros.

BTW, being from the "straight or as little relief as possible" school myself, did you experience the typical not-enough-relief-syndrome: fret buzzing in the lower to mid section of the neck? And if so, did you try a red aunt hair higher action?


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Mon Jul 15, 2019 3:44 am
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If truss rod nut is already loose, no need to remove it, neck wood look the issue.

You want to remove it ;

https://www.manchesterguitartech.co.uk/ ... s-rod-nut/


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Mon Jul 15, 2019 5:13 am
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jmattis wrote:
The truss rod should be a standard model - only guessing by memory here, so check the guitar before proceeding. But with those standard truss rods, it's possible to take the nut off totally for cleaning & lubing.
EDIT: There was some discussion on that subject previously, so to give an idea what may lay ahead: https://forums.fender.com/viewtopic.php?f=7&t=116520 and the link there: https://forums.fender.com/viewtopic.php?f=6&t=49831

Temporarily, you could experiment with thick strings - for a Jazzmaster, that would be a .013 or thicker set, IMHO.
And it's also possible to help the neck to bend. Sometimes just hand pressure does the trick, if the truss rod is stuck on finish residue & such. The bold might take the truss rod nut off first, and give a little hammer tap at the end of the rod to ensure it's free, but I wouldn't recommend that to anybody. :wink:
Sometimes clamping and heating may be needed. For this clamp&heat method, the result may not last, and usually that's a job for only the very bold or the pros.

BTW, being from the "straight or as little relief as possible" school myself, did you experience the typical not-enough-relief-syndrome: fret buzzing in the lower to mid section of the neck? And if so, did you try a red aunt hair higher action?


Well, there is a light fret buzzing at the 1st and 2nd fret, but it is not a big issue, only when you strum strong.
I did increase the action raising the bridge, the playablily still good and no fret buzz.


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Mon Jul 15, 2019 5:15 am
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stratele52 wrote:
If truss rod nut is already loose, no need to remove it, neck wood look the issue.

You want to remove it ;

https://www.manchesterguitartech.co.uk/ ... s-rod-nut/


well, I would rather not remove it. The weird thing is that the truss rod was loose for 2 entire turns, then started to have some friction. After turning it a bit more, I simply stopped, as I want to avoid damaging it.

No warranty as the guitar is from 2012.

I brought the guitar to a trusted reparing shop, the technician will be back on Thursday, he can check the guitar and will tell me more...


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Mon Jul 15, 2019 5:19 am
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buscon wrote:
stratele52 wrote:
If truss rod nut is already loose, no need to remove it, neck wood look the issue.

You want to remove it ;

https://www.manchesterguitartech.co.uk/ ... s-rod-nut/


well, I would rather not remove it. The weird thing is that the truss rod was loose for 2 entire turns, then started to have some friction. After turning it a bit more, I simply stopped, as I want to avoid damaging it.



No warranty as the guitar is from 2012.

I brought the guitar to a trusted reparing shop, the technician will be back on Thursday, he can check the guitar and will tell me more...


There are no need to unscrew more to have the neck concave.
+1 , see the tech.

Come back to tell us what he is thinking about that, I want to learn


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Tue Jul 16, 2019 3:53 am
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@St-52, the link you posted is about the US models (Bi-Flex) truss rods with the walnut wood plug - AFAIK, no Squiers have that.

My links are about "the other standard type" truss rod - they have either no plug or a plastic one - Squiers, MIM's, MIJ's etc.
Some people have mixed those two up, and unnecessarily removed the plastic part trying to get the truss rod nut out. If you check on the links I sent above, the truss rod may still be stuck in the thick glue (or something) residue even after the truss rod nut is opened a turn or two. That diagnose would fit exactly the "truss rod was loose for 2 entire turns, then started to have some friction" description.
It's not a bi-flex, it's not a dual action, it's just dirty.

But as always, I'm only making guesses when diagnosing in the web. Sometimes right, sometimes wrong.


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Tue Jul 16, 2019 9:08 am
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jmattis wrote:
@St-52, the link you posted is about the US models (Bi-Flex) truss rods with the walnut wood plug - AFAIK, no Squiers have that.

My links are about "the other standard type" truss rod - they have either no plug or a plastic one - Squiers, MIM's, MIJ's etc.
Some people have mixed those two up, and unnecessarily removed the plastic part trying to get the truss rod nut out. If you check on the links I sent above, the truss rod may still be stuck in the thick glue (or something) residue even after the truss rod nut is opened a turn or two. That diagnose would fit exactly the "truss rod was loose for 2 entire turns, then started to have some friction" description.
It's not a bi-flex, it's not a dual action, it's just dirty.

But as always, I'm only making guesses when diagnosing in the web. Sometimes right, sometimes wrong.


You are right Squier may not have biflex truss rod.
I don't know how truss rod nut look.


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Tue Jul 16, 2019 12:14 pm
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There's a pic of a MIM truss rod nut on the last post of this link - most Squiers and Fender MIM's, MIK's, MII's (&whatever) and MIJ's are about the same, if they are headstock adjusted. This one's absolutely ugly with that glue/finish covering (gladly, all this type nuts aren't this bad):
https://forums.fender.com/viewtopic.php?f=7&t=116520


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Tue Jul 16, 2019 2:13 pm
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jmattis do you think it is this kind of truss rod ?

https://www.stewmac.com/Materials_and_S ... d_Kit.html

IMO truss rod may be glued in the neck, glue receive from the fret board ?
Or washer is jammed into the neck with glue or piece of chip board.

This truss rod may be "easy " to remove with right tools to clean it.


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Wed Jul 17, 2019 12:36 am
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The basic construction is the same, but that one has the Gibson style adjustment nut, meant to be installed differently (in a cavity, under the cover at the headstock), and the anchor might be different.

Here's a Hosco single action, one-way, traditional (...) truss rod, which should be very close to the VM-JM type (it might even have been an OEM part in some Fender/Squier models.)
The pic says "Tous droits réservés", so I'll add just a link:
https://www.emma-music.com/-allparts,us ... fender.cfm


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Post subject: Re: Jazzmaster VM - neck straight
Posted: Wed Jul 17, 2019 1:45 am
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Thank yo for the link

On my link, I know the nut is Gibson, I just want to show the kind of truss rod. A simple rod.
As I wrote, this rod are "easy" to remove with the right tool to clean it.
Same rod in a 1979 Stratocaster.

Here a video, look a 3:41 how to remove a good truss rod like the on on your link.

https://www.youtube.com/watch?v=zjOIZ98LBo8
Image[url=https://flic.kr/p/2gABW26]


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