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Howdy Folks,

My 1st post here. My story is that a friend of mine gave me an old Martin that someone gave him when he was 17. He's nearly 90 now so it was awhile back. We drove down to Gryphon last summer to have Frank and Richard evaluate this guitar and they concluded it was a 1906 0-30.

As you can see it's very beatup. Sorry about the picture size and shooting from the bathroom.

Somebody sanded the original finish off the top. My friend when to a repairman to fix the bridge and he replaced it with a non original bridge and kept the original Martin bridge. There's cracks in the top, big ones in the lower bout, the top of the upper bout is starting to crack and the back is forming a crack starting at the lower extremity of the body. Also much of the ivory binding is loose or missing. The action is on the high side and is gets out of tune fast as you go up the neck

My goal is to put this guitar into decent playable condition so I can use it to mess around with. My friend gave it to me because he knew I was playing it everyday. Plus he's an accordion player!

My plan of attack was to start by...

1) removing the back to get access to the major components but I'm reading from you guys that it would be a bad idea to do that. 

2) repairing the cracks in the top, back, and sides (Titebond then linen tape re-enforcement?)

3) having access to the neck block, I could remove the neck and do a neck reset. (yeah I know this sounds overly ambitious but I'm feeling cocky after doing a complete re-fret and re-installing the bridge on an old Gibson [also given to me by a friend who was given this guitar but he's a lefty so he passed it onto me)

4) putting everything back together if I ever get to the point that this could occur

5) performing a re-finish to the top, sides, and back with a French-polish type finish (unless I hear the majority of responders pleading not to do such a sacrilegious thing)

This guitar reminds me of watching Leon Redbone on SNL and being totally blown away. I wish it was a D-18 but grateful my sweet friend parted with it. Just trying to make a good home for a little bitty waif of a guitar... 

Best Regards,

David Burns

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Taff,

Thanks for the advice. Good idea to make a template first. StewMac has a nifty tool for fixing bowing tops but at 142.00 it's a bit much for a tool I'm only going to use once...

Speaking of cracks I'm starting to think about my workshop. It's in my backyard shed which will start getting hot as summer comes. There's no AC or humidifier so I'm wondering if there's a point when I'll have to start working on the guitar inside the house. We live in a mobile home so not alot of spare room...

Here's a new picture. Whoever fixed the middle crack first time didn't check to see if the brace needed to be reglued....Dave

Hello All,

would you mind critiquing my repair steps for the top? There may be some glaring weakness I’m not seeing…

Here’s my four major issues with the top: 1) Large cracks in middle lower bout 2) Belly in top 3) Flimsy, damaged bridge plate 4) Loose travers brace

1)  It seems like the place to start is repair the bellied top. The only way I can see to do that is buy a Thompson Belly Reducer Kit. I hate springing for more tools I will rarely use but I haven’t found a better solution. (except for the clamping caul you made but I don’t have a machine shop!)

2) Crack repairs. I would love to be able squeeze them together then put a cleat underneath. (I bought some Thompson cleat strips for this) I don’t think this will be possible without separating the top from the end block and that doesn’t seem like a good idea. So filling the cracks with a spruce sliver is my last option. Since the top finish is almost all sanded away I’m hoping that a wash with alcohol will color the splints so as to not stick out like a sore thumb.

3) New bridge plate. I have some StewMac maple bridge plate stock for this. I’m thinking of making it slightly bigger for extra reinforcement but let me know what you think. 

4) Travers brace reglue. I have the Titebond Hide glue for this. I’ve been reading good things about the fish glue too…

Next chapter deals with the large side crack and the flattened back with loose braces, oh boy...

 Appreciate your feedback very much!

David Burns

I've used fish glue for most everything lately. I like it's long open time, tackability before clamping and ease of cleanup.

Heard lots of negative things about Titebond's hide glue especially if it's not real, real fresh, but no personal experience.

Dave

To deal with the distorted top contours, and without needing fancy new tools, you could consider the technique that Frank shows here:

http://www.frets.com/FretsPages/Luthier/Technique/Mandolin/Structur...

Essentially it os to make a plaster of paris cast of the soundboard contour (in its current distorted shape) then sand the cast to the desired shape and use that as a form to press the top back to correct shape.  Once you have a form to press it into you can potentially use heat and weight (hot sandbags, heated in a microwave, another FF trick) to reshape the top.  Disclaimer - I have never actually tried this myself, but I just remember seeing the tutorial and thinking it is a cool looking technique.  

Mark

Mark,

Thanks for sharing that info. I've been reading alot of Franks blogs but wouldn't have thought to look at a mandolin repair. I'm going to read and re-read this article!

Dave

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