Repair advice SG 400

Discussion in 'Epiphone Guitars' started by Welsh chris, Jan 7, 2022.

  1. Welsh chris

    Welsh chris New Member

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    Hi all , I'm new to the forum , my 13 y/o daughter has dropped her 04 Korean sg , neck is intact but neck joint to body has been compromised to the point that action is now sky high . truss rod adjustment doesnt really help /makes no difference and as I tune guitar the string tension must be pulling against joint and the hairline crack between body and neck heel looks like its opening up !!! And the action starts to rise again .My plan was to semi strip down body and try and open up/prise joint and inject titebond hide glue into crack and clamp up to set ... My question is - does the original glue actually fail ???? ( wot glue do factory use ??? ) or has it just taken a monumental fall ?.? Like all kids she is playing incident down and shrugging !! Lol !! the body now has a crack which looks like it goes down under the pickup , along with the crack around rear of heel ,btw obviously it's a set neck not bolt on , it's not worth much in value but I wud like to keep if possible , thanks in advance , Welsh chris
     
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  2. Raiyn

    Raiyn Well-Known Member

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    Get thee to a luthier! Not a guitar tech - an honest to goodness luthier.

    That's the kind of repair I used to farm out, but now I just don't take them. If it's worth anything to your daughter, get it done right.
     
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  3. Davis Sharp

    Davis Sharp Well-Known Member

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    Sorry to hear about it. Some pictures of the damage would be informative, but it sounds like it's damaged in a few places.

    The original glue shouldn't fail. A lot of people do headstock repairs with carpenters glue.
     
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  4. Welsh chris

    Welsh chris New Member

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    Hi raiyn , it's only worth £50 ish , a luthier wud probably be 4 or 5 times that value , it's not worth it , I was thinking home repair
    If it was a Gibson then it wud be different scenario
    Davis sharp -thanks was wondering if glue failed with age ???, I'm guessing it did have quite a fall then
     
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  5. Welsh chris

    Welsh chris New Member

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    20220108_123552_copy_1224x1632.jpg 20220108_123607_copy_1224x1632.jpg 20220108_123521_copy_1224x1632.jpg photos of damage
     
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  6. Davis Sharp

    Davis Sharp Well-Known Member

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    Yikes! That repair is beyond my skills. If I were in your shoes, I'd strip and sell the parts. People who prefer Korean to Chinese Epis may be interested, especially if the truss rod cover says "Gibson." That would offset the roughly £150 for a new SG Special or Les Paul Special (or less on the 2nd hand market).
     
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  7. BGood

    BGood Well-Known Member

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    If you can pry it open a bit, insert a shim (screwdriver, knife, anything that will keep the crack open) you should be able to inject wood glue with a syringe in there. Have the guitar standing on end so gravity helps spread the glue in the crack. If glue is too thick (test before) for syringe needle, dilute 1 to 10 with water. You could also push glue in the crack with paper strips or acetate, something very thin that will slide in there.

    Clamp down with a good vise using a thin piece of wood to protect fretboard and back of neck heel. Leave for 24 hours.

    Can seem to be able to pry it ? Clamp bottom of guitar body upside down to a table, put a book or something under the fretboard at crack level and gently push down on the upper neck, not the headstock. As you see the crack open (it will open), pry a shim in there.

    Did the such a repair on a PRS.

    Neck-crack.jpg

    IMGP1328.JPG

    Manche collé.jpg
     
    Last edited: Jan 8, 2022
  8. Welsh chris

    Welsh chris New Member

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    Thanks Bgood , yeah that wot I had in mind , I will order some needles of Ebay and give it a whirl , I'm gonna take a deep breath b4 I remove top pickup , I reckon crack goes down quite deep
    Daughter has fessed up !!! She did school of rock thing in summer and sg fell off a stand but she also shared guitar with other students so who knows , ah well ,kids eh
     
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  9. BGood

    BGood Well-Known Member

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    I doubt that the glue failed, it is stronger than wood fibers. Once repaired, it should be OK for a long time.
     
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  10. Welsh chris

    Welsh chris New Member

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    Thanks guys , I will post some pics when done
     
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  11. Welsh chris

    Welsh chris New Member

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    20220110_171600_copy_1224x1632.jpg 20220110_171620_copy_1224x1632.jpg 20220110_171600_copy_1224x1632.jpg
    Er yeah, the crack on the left not as bad as I thought , crack on right is much worse than I thought ,and the section of joint by the 3 arrows I can run a finger nail inside the split
    Tbh I reckon the strap button screw was a massive help in holding it all together
    Now its removed theres quite a bit of er 'flex ' shall we say
     
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  12. BGood

    BGood Well-Known Member

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    That looks bad but it is a good thing. This way you'll have space to push the glue in.
     
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  13. Noodling Guitars

    Noodling Guitars Active Member

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    Ouch! Such violence. But looking forward to seeing your red guitar once repaired!!!
     
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  14. Welsh chris

    Welsh chris New Member

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    Couple of photos of front , mid job
    I have already opened and injected glue into rear of neck a day or so ago 20220115_135632_copy_1224x1632.jpg 20220115_135620_copy_1224x1632.jpg 20220115_135748_copy_1224x1632.jpg 20220115_135610_copy_1224x1632.jpg
     
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  15. Welsh chris

    Welsh chris New Member

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    I allowed some glue to drool down the sides inside pickup cavity hoping to give cracks there a tiny bit more strength
    Rear of neck has set and I screwed in strap button whilst clamping up joint , quite pleased how that turned out so far
    Once it's all dried and sanded back I'm toying with maybe using very small amount of daughters nail varnish on one crack
     
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  16. BGood

    BGood Well-Known Member

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    What kind of glue did you use ? Looks clear. Not regular yellow wood glue I presume ?

    Best color touch up for a cherry SG is this.

    Red Sharpie.jpg
     
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  17. Welsh chris

    Welsh chris New Member

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    Glue bottle in pics , titebond animal hide glue, like a light brown colour rather than deep yellow , more like a faded opaque cola
    Cold here in UK atm , had to bring glue into house and place on radiator to warm to runny honey consistency , went really lumpy and sludgy in cold garage which was about 6/7 * C
    Label on back gives working temps
    Ta for sharpie tip I will source one
     
  18. Welsh chris

    Welsh chris New Member

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    Went almost solid tbh , I thought glue had aged and gone off at first
     
  19. BGood

    BGood Well-Known Member

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    On the product page, it says: Not for structural or load bearing applications.
    Hope it will hold.
     
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  20. Welsh chris

    Welsh chris New Member

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    Theres a channel on YouTube called flame guitars , he is a luthier and specialises in Gibson neck repairs , and he uses exactly the same glue , slightly different loads but I'm hoping so !
    Fingers crossed and all that
     
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