Hello all! Once again, I have a repair to pick the "collective" brain about. It is a crazy peghead split on a Martin HD28. I think it fell from a wall-hanger mount.
Hopefully, I can get pictures up.
What are your opinions about repairing this type of peghead split?
I have some skills. Is this a fairly 'normal' repair? Should I refer it to Martin? Need some 'direction'. Have more pictures.
I don't see much beyond a neck splice ..rather bizarre split. If you were to brave a repair, I'd get those strings off mighty quick as the break looks clean in it's awkwardness. Ever so gently remove the tuners, get some highest strength hide glue piping hot, heat the break area, apply ample hot glue and just clamp the headstock in from the sides. Cutting a couple of cauls shapped to the peghead and clamping it flat top to back can't hurt. Being such a bizarre break, I don't know that it'd hold and I think a splice is really your only option but if you like to roll the dice, I'd only trust hide since the break looks clean and creep is minimal. If you want to get messy after clamping, you could run small carbon rods into the headstock or consider splines but in that case, I think a fresh, complete splice is a better option.
I just see possible issues with it coming together nicely with the various breaks. If the headstock was split outside of the tuners, I'd be less worried about that split but it's up through the middle of the headstock and actally runs up to the G and B..under the tuner of the B in fact. As photo 2412 shows, the faceplate is split and folded over itself. I'd be cautious about the certainty of this break closing well. Hide glue does not like gaps. A snug fit and appropriate clamping pressure are going to be pretty key.
The issue for me is that the break has occurred at the break angle of the nut, which also happens to be the weakest point of the entire neck, and continues through the full length of the headstock. It broke clean through to the weakest area of the neck at both extremities of the volute. Putting it back together as cleanly as it broke will be paramount for the non-invasive repair of gluing it back together. So will the geometry of the overall state of the instrument. If the neck needs a reset, it will be pulling greater at that break angle of the nut.
Being such a strange break and in its particular area of break I simply do not know if glue, using all precautions, would hold. I think I'd ty it...but with no guarantees and a strong set of goggles when I tuned up...
Thanks everyone, for the comments. I carefully removed the tuners today and applied some pressure to semi-close the split. Yes, it seems that the facehead of the peghead is a hinge to the split. It will require clamping in two directions. It seemed to close fairly neatly with hand pressure in both directions.The split and splinters lined up pretty well. There IS quite a bit of "spring back" after pressure is released.
I feel like it will take a lot of cauls and clamps in both directions to close it up properly. Makes me nervous when time and heat needs to be optimal. I have Behlens hide glue flakes that I have used before on repairs. I like hot hide glue. However, would anyone suggest using one of the Titebond glues in this instance?
Going to put up some more pictures(pre tuner removal), in case anything else is revealed. I am a little nervous about getting this right the 1st time....
However, I 'feel' that I can do it.
Hide is less likely to creep than aliphatic glues...but it needs that smooth gluing surface (faces meeting perfetly) for wanted results...
That's the coolest headstock crack I've ever seen. Picasso cubism!
All long grain split so it should be bomber if it comes together initially. A supper stiff caul that has a cut-out to hop over the volute looks like it might be helpful.
agreed on the caul,David
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