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Tech: Setup, Repairs and Mods Guitar workbench discussion such as setup, repairs, mods, installing new parts and more.

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  #1  
Old 08-29-2009, 09:37 AM
Max Dread  is offline
 
Join Date: Jul 2008
Location: Norfolk, UK
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Trem pull up chokes strings.....


Hi

I'm almost finished re-setting up my guitar (a RG1077xl). I shimmed the neck because I was finding that the bridge was at it's very lowest with still quite high action. And as a result there was not a great deal of pull up on the trem.

All is well now and the guitar feels good to play (well, it's getting there). Trouble is though, when I pull up a couple of tones on the trem, the strings choke agianst the frets/fretboard. I know I could make the action higher to get around this, but it is set how I like it which is already quite high - and I'd rather not go much higher.

So I wondered if there are any other causes/remedies for the problem?

Cheers

Max
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  #2  
Old 08-29-2009, 10:08 AM
(a)
IbanezFreak777  is offline
 
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Location: Melbourne, Australia
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Re: Trem pull up chokes strings.....


For sure something is wrong, cause you should be able to pull right up and not hit the fret board...

Have you tried adjusting the truss rod ?
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  #3  
Old 08-29-2009, 01:08 PM
dgbaker33  is offline
 
Join Date: Jun 2002
Location: Royal Oak MI
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Re: Trem pull up chokes strings.....


Quote:
Originally Posted by Max Dread View Post
Hi

I'm almost finished re-setting up my guitar (a RG1077xl). I shimmed the neck because I was finding that the bridge was at it's very lowest with still quite high action. And as a result there was not a great deal of pull up on the trem.

All is well now and the guitar feels good to play (well, it's getting there). Trouble is though, when I pull up a couple of tones on the trem, the strings choke agianst the frets/fretboard. I know I could make the action higher to get around this, but it is set how I like it which is already quite high - and I'd rather not go much higher.

So I wondered if there are any other causes/remedies for the problem?

Cheers

Max
Post some pics of the fretboard if possible. Freak is correct in that the neck may have too much bow either way.
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  #4  
Old 08-29-2009, 10:03 PM
littlephil  is offline
 
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Location: Australia
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Re: Trem pull up chokes strings.....


You might also have too much angle on the neck.
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  #5  
Old 08-30-2009, 09:10 AM
thesimo  is offline
 
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Re: Trem pull up chokes strings.....


this is often because your 24th fret is higher than ur 1st fret in relation to the strings. So when you increase the tension the strings come closer to the neck and touches the 24th fret, choking them.

I'm no expert but what you would have to do (if its a bolt on) is shim the neck so its on the body at a slight angle to raise the head of the neck and make the 24th fret appear lower than the 1st. Then you can lower the bridge and not choke em.

If its a neck through im not sure theres a whole lot you can do...

in short - take it to a pro to fix it
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  #6  
Old 09-01-2009, 04:14 AM
guitar-turk  is offline
 
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Re: Trem pull up chokes strings.....


Quote:
Originally Posted by littlephil View Post
You might also have too much angle on the neck.
+1 yes the angle of your neck is too much now 24 positon frets are rise because of that.when you pull-up the bar you will also get a ""wiieeng "" noise of hitting.rising the studs will solve but at his time the action will be too high..

remember this is an equations that lots of factor is effective
minor changes cause other factors change...so my advise is start without shim and try yo adjust other things well.and then litle by litle add the 0.1mm shims you could use 800 grid sanding paper.

and sometimes you shold be happy without a shiming but you may like the brigde little high to get much better pullup action..and then you have to rise the neck all the way with sanding paper not changing the angle. so should rise neck equaly all the points.cut the sandinpaper just as neck cavitiy and try that.try 1 paper rise the bridge..and then second rise litle bit and when the action is enough for you check the trusrod and reset the bridge angle just as parallel to your guitar in your proper playing position..

i think it will help..
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  #7  
Old 09-01-2009, 04:15 AM
bakerman  is offline
 
Join Date: Feb 2002
Location: Minnesota
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Re: Trem pull up chokes strings.....


The angle of the neck based on how it's shimmed really has no effect here. One endpoint of the string is being lowered toward the body of the guitar as you pull up on the bar; the string is approaching each fret at some fraction of that rate.

Proper truss rod setting is helpful. Too far in either direction plus somewhat low action and either low- or high-fret notes could choke earlier, just like they can buzz more. There may also be no real problem--I've been temporarily surprised at reduced pull-up range after using higher action for a while then lowering it.

Here are some figures from my Carvin w/ original Floyd Rose if you want to see how they compare to your RG. (I'd check my RG7620 if it was here at the moment, but from memory these values would be nearly identical. There's not much difference in the path the saddle endpoint of the string takes.)

Action at 24th fret = 2.0mm low E, 1.4mm high E

Neck relief: very slight amount; around 0.3 mm (3 pieces of paper) at 7th fret when fretting 1st & 15th.

Pull-up before note chokes while fretting 12th fret:
low E & G: almost 6 semitones, nearly full range of motion of FR
A, D & B: around 4 semitones
E: just under 3 semitones
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  #8  
Old 09-22-2009, 09:53 PM
Kenix700  is offline
 
Join Date: Dec 2008
Location: Detroit, Michigan
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Re: Trem pull up chokes strings.....


Im having the exact same problem on my RG550. I would like the action a little bit lower, but if i lower the bridge anymore the strings choke out really really fast. Drives me nuts.
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  #9  
Old 09-23-2009, 04:10 PM
Yousef  is offline
 
Join Date: Jul 2006
Location: Anderson, SC
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Re: Trem pull up chokes strings.....


This happened to me when I added a shim on the neck where it was clossest to the body of the guitar. I adjusted everything but no matter what I did it would choke when I pulled up too much. I reduced the shim amount and it has solved it about 90% of the way. It only chokes a BIT (unnoticable plugged in) when I pull up ALL the way. Check your shim man.
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