Tricky Crack Diagnosis Issue - FRETS.NET2024-03-29T11:12:59Zhttp://fretsnet.ning.com/forum/topics/tricky-crack-diagnosis-issue?commentId=2177249%3AComment%3A203290&feed=yes&xn_auth=noIn the end, the consensus was…tag:fretsnet.ning.com,2020-10-26:2177249:Comment:2099452020-10-26T15:08:38.557ZDave Domizihttp://fretsnet.ning.com/profile/DaveDomizi
In the end, the consensus was that it was checking, and the guitar has been sold. I wasn’t convinced that any repair was needed and, given that the guitar was about to be sold again, the expense and the risk of even the smallest visual evidence of a repair inclined all parties to leave it alone.<br />
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The guitar had previously sold in 2018 through Chicago Music Exchange, and they felt that it was just checking. There was only one pertinent photo from that sale that did show the upper part of the…
In the end, the consensus was that it was checking, and the guitar has been sold. I wasn’t convinced that any repair was needed and, given that the guitar was about to be sold again, the expense and the risk of even the smallest visual evidence of a repair inclined all parties to leave it alone.<br />
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The guitar had previously sold in 2018 through Chicago Music Exchange, and they felt that it was just checking. There was only one pertinent photo from that sale that did show the upper part of the crack on the headstock, and it was consistent - the crack stopped at the same place by the tuner. It would have been great to have a lower shot that showed how far down the neck the crack extended/whether it had changed, but regardless it seemed very tight and stable.<br />
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I posted here mostly because I was curious to know if anyone had previous experience with other high tech crack scanning options, just for these unusual situations, especially in dealing with expensive vintage instruments.<br />
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Thanks to each of you for your input! What was the verdict, Dave?tag:fretsnet.ning.com,2020-10-25:2177249:Comment:2096472020-10-25T21:13:27.665ZGreg Mirkenhttp://fretsnet.ning.com/profile/GregMirken
What was the verdict, Dave?
What was the verdict, Dave? Dave seems to be experienced…tag:fretsnet.ning.com,2020-10-14:2177249:Comment:2035532020-10-14T04:48:44.634ZLen Biglinhttp://fretsnet.ning.com/profile/LenBiglin
<p>Dave seems to be experienced but I'll just mention that a bit of tape each side of the crack will minimise superglue/lacquer mess , not a problem with epoxy as it cleans up nicely with alcohol or turps.</p>
<p>Dave seems to be experienced but I'll just mention that a bit of tape each side of the crack will minimise superglue/lacquer mess , not a problem with epoxy as it cleans up nicely with alcohol or turps.</p> First you want to find out if…tag:fretsnet.ning.com,2020-10-13:2177249:Comment:2032902020-10-13T02:45:10.463Zjbbancrofthttp://fretsnet.ning.com/profile/JamesBBancroft
<p>First you want to find out if the wood is cracked, Naphtha will determine that. Then if you actually have a crack in the wood use superglue to repair it.</p>
<p>Jim</p>
<p>First you want to find out if the wood is cracked, Naphtha will determine that. Then if you actually have a crack in the wood use superglue to repair it.</p>
<p>Jim</p> Well, as long as you're tryin…tag:fretsnet.ning.com,2020-10-13:2177249:Comment:2029812020-10-13T00:19:02.523ZGreg Mirkenhttp://fretsnet.ning.com/profile/GregMirken
<p>Well, as long as you're trying to wick liquids into the crack, why not just try to wick thin superglue into it? If it does wick in, not only do you identify it as a crack, but you glue it at the same time. With a little clean up and buffing the repair should be close to invisible.</p>
<p></p>
<p>Well, as long as you're trying to wick liquids into the crack, why not just try to wick thin superglue into it? If it does wick in, not only do you identify it as a crack, but you glue it at the same time. With a little clean up and buffing the repair should be close to invisible.</p>
<p></p> Instead of water use Naphtha,…tag:fretsnet.ning.com,2020-10-12:2177249:Comment:2031052020-10-12T21:31:00.573Zjbbancrofthttp://fretsnet.ning.com/profile/JamesBBancroft
<p>Instead of water use Naphtha, it will easily wick in if it is a crack, water can swell the crack. Apply Naphtha to the crack in small section, then flex the crack slightly. If it is a crack you will actually see the Naphtha moving and going into the crack. If your vision is a little on the poor side use a headband magnifier to view the crack and Naphtha.</p>
<p>My gut feeling is it is just a Lacquer check, but if it is a crack I would use thin super glue, as it will wick it’s way completely…</p>
<p>Instead of water use Naphtha, it will easily wick in if it is a crack, water can swell the crack. Apply Naphtha to the crack in small section, then flex the crack slightly. If it is a crack you will actually see the Naphtha moving and going into the crack. If your vision is a little on the poor side use a headband magnifier to view the crack and Naphtha.</p>
<p>My gut feeling is it is just a Lacquer check, but if it is a crack I would use thin super glue, as it will wick it’s way completely into the crack.</p>
<p>Jim</p> To me it doesn't seem to foll…tag:fretsnet.ning.com,2020-10-11:2177249:Comment:2023262020-10-11T08:03:32.759ZLen Biglinhttp://fretsnet.ning.com/profile/LenBiglin
<p>To me it doesn't seem to follow the grain , so i doubt its a crack in the wood . Could it be a scratch ? my thoughts are to get some clean water , maybe add a dash of alcohol to reduce surface tension , run a few drops along the crack while gently twisting the headstock , if its a crack in the wood some water should wick / run in there , and will bead in and out as the headstock is twisted . That should establish if it is a crack , then you can decide if epoxy or HHG will best penetrate , I…</p>
<p>To me it doesn't seem to follow the grain , so i doubt its a crack in the wood . Could it be a scratch ? my thoughts are to get some clean water , maybe add a dash of alcohol to reduce surface tension , run a few drops along the crack while gently twisting the headstock , if its a crack in the wood some water should wick / run in there , and will bead in and out as the headstock is twisted . That should establish if it is a crack , then you can decide if epoxy or HHG will best penetrate , I would probably use epoxy thinned with alcohol , perhaps a plastic straw over truss rod .</p> It's certainly an unusual pla…tag:fretsnet.ning.com,2020-10-09:2177249:Comment:2013812020-10-09T22:32:33.296ZGreg Mirkenhttp://fretsnet.ning.com/profile/GregMirken
<p>It's certainly an unusual place for a lacquer check. Does the instrument have other examples of checked finish?</p>
<p>From your description I gather this runs sort of diagonally through the neck. Does the grain at the top of the headstock exhibit the same orientation? That would be an indication of a wood crack.</p>
<p>It's certainly an unusual place for a lacquer check. Does the instrument have other examples of checked finish?</p>
<p>From your description I gather this runs sort of diagonally through the neck. Does the grain at the top of the headstock exhibit the same orientation? That would be an indication of a wood crack.</p>