Gluing previously glued cracks , heel , neckblock , sides...

[thefishinmusician]

I've got a Taylor , bolt on 12 string in the shop....A p.a. speaker had hit the case , and cracked the heel , both sides and neck block...The crack runs between the two bolts , basically in the middle of the guitar...It was repaired a few years ago , and it all held up for 2 years while the customer owned it..Then , she gave way...I have removed the neck and starting with the heel , I used DeGlue Goo...( this stuff works great on organic and normal wood glues )...Using a black light , I still be residue on one side of the heel , not so much the little piece broken off....The neck block section doesn't look like they got much , if any glue in it....The sides were glued , i suspect , with the same type of glue..The cracks fit together fine...I don't see how I can clean the old glue out of the cracks well enough to make much difference...I'm thinking of using super glue for the cracks , and re-enforcing them on the inside ( there were none to begin with ) , regular wood glue on the neck block , and possibly on the heel , altho the residue makes me a bit leery...Thoughts ?

[John]

Based on your description it sounds like a repair I had a few months ago. It was an old J45. There were bolts between the 13 and 14 frets the were secured at the bottom of the heel and clothespins epoxied across the cracks on either side of the neck block. All of the structural issues were related to the cracked heel. I used the end of the belt sander to remove wood from across the crack and then fit a new piece in. The new piece secured the whole area. Here are some pics of the process and yes that's bondo but I didn't put it there. 

The guitar still looks like a dogs breakfast (there was budget involved)  but it's structurally sound, it plays well and sounds surprisingly good. 

[thefishinmusician]

Actaully , it looked pretty decent...It just failed , maybe because no glue got to the neck block...Same location as my break...But , I've got the neck off...

 

[John]

Post some pictures.

 

[thefishinmusician]

I'll try