Guitar Repair

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Pulled a case + a nylon string outta the neighbor's trash last weekend. it's a stoll which seems to be a decent german make...

the only thing really wrong is the entire back panel has a vertical crack. Should I glue it? tape it? 

can keep it for a beach/beater guitar. 

the case alone is worth a few bucks.

How does it sound? 
 

I would think you may have to strip the finish off and then use a wood filler, sand and refinish, if it sounds ok I would not even mess with it if it is a beater. 
 

 

youtube or google might give you an easy and cheap answer.

it was strung all back-ass but sounded good with what was there...

the crack will eventually completely separate/break open if unattended.

this is my google for music stuff.

this doesn't look very fancy however the lowest price of one i see is around $900 euro

Everybody needs a beater

if you mean a vertical crack from top (where neck is attached)  to bottom (south of the bridge) maybe the two-piece back separated along the glue joint.

But if you look at the construction,  it's a curved box with the neck jointed in...  the sides and bracing help it all hold together.

THis guy Tom Wheeler used to have all sorts of luthiery tips online, but he passed away.
https://www.premierguitar.com/articles/26987-remembering-tom-wheeler

Anyway,  if I had a brand-new dumpster Guitar of decent construction,  my first step would be loosen the strings a bit (relieve some neck tension) and set it in a shady room about 65 degrees and 50% relative humidity.

Then peek inside the soundhole with a bright flashlight,  and see if the internal bracing seems intact.

Maybe get a flannel rag and some guitar polish,  and clean up the exterior. Next project  would be get some light-gauge strings and put them on.

Perhaps you can play it a while and not worry about the crack.

Does the crack go all the way thru the back side (can see it from the sound hole)?  

Best to determine if it's "solid" wood or a "laminate"   

If you look in the sound hole, and it looks like plywood, then it's a laminate,  the sign of a cheap guitar...    you get to experiment, lol...   

plywood (can see the laminated layers)

IMG_7436.jpg

 

 

If you can see the grains of wood going thru the face, then it's a solid top, so a more valuable guitar, but that doesn't mean the back is a laminate vs solid wood, but you won't have a solid back w/ a laminate top, so there's that...

Solid wood top

OIP.8nU4L0GVJyx-s89FJS0KbAHaDm.jpeg

 

 

If the grains line up on the back face inside and out, then it's likely a solid back, and worthy of more consideration in both construction repair and cosmetics  

I looked up the "Stoll" brand and they seem to be still in business with some nice product.

http://www.stollguitars.de/en/portfolio/all-solid-wood-classical-octave-...

So it's worth keeping,  even if you wind up parting it out for Schall tuners etc.
Peek in the soundhole and see what the label says,  compare it to stuff on the Stoll website.

Honestly if I just curb-scored such an instrument,  I would string it up and play for a while,  with a light set of strings.  Definitely peek in the box and see if any broken braces,  maybe get the item to good humidity.

If it's all real Wood,  worth keeping and working upon in the future.

If there are big fractures in the neck or neck-body joint,  you probably need pro help.