String holder coming loose

[MynameisMe]

I previously posted this in general bass forum but a member told me to post here:
I do a lot of my own luthier work. I have built an acoustic guitar out of a kit and modified many bases and guitars.
I traded for this Jack Casady and I really like it. I have a set of LaBella low-tension flats that I'm putting on it and I was cleaning this thing up really good but all of a sudden when I'm restringing it the post starts coming loose holding the bridge and pulling up.
See my picture. What kind of glue that I would need to put in the post holder in place?
Obviously it is on the light side of the strings some more attention would be on the opposite post with the heavier strings.
I traded I made in Mexico jazz bass for this and this is in mint condition hardly ever been played. A real beauty! Plays great but the strings were horrible so I traded it to these flats. Please don't mind my busy work bench.
Note: I immediately loosened it all as soon as I took the pictures.

 

[96tbird]

Super glue or Titebond wood glue. What you have to watch for is there is a ground wire in the treble side hole that has to contact the insert.

I have had a couple basses with the three point on them, including my JC for three years now and I have never had a problem. My solution, and confirmed by some other things i have read is that one you have tge height set, raise the middle bolt so the front of the bridge plate is higher than the back. The plate is tilted. I just raise it until i notice resistance as the back “ears” begin to interfere with the slots on the bolts. This transfers a lot of the strain off the rears to yhe front bolt, moving the torque up force onto the front post. IMO YMMV.

 

[MynameisMe]

That is probably where I erred. I put the front post all the way down and I bet it put a ton of pressure on those back posts.
It's my first bass with this kind of bridge so I am just winging it.
That may solve the problem anyways without glue.
Thanks!

 

[Matt Liebenau]

Just posted in your original thread but +1 or more to @96tbird advice about adjusting the bridge. I have a JC and an EB3 with the stock bridge and no issues. Bridges have been adjusted that way while I've had them.

 

[MynameisMe]

Just posted in your original thread but +1 or more to @96tbird advice about adjusting the bridge. I have a JC and an EB3 with the stock bridge and no issues. Bridges have been adjusted that way while I've had them.

Yes I saw it.
Thanks for the advice. I am going out in a little while anyways and will investigate a proper glue for this.

 

[96tbird]

Nothing special about glue. JUST DONT USE GORILLA GLUE OR OTHER POLYURETHANE GLUE unless you like a mess.

CA super glue, just a couple dots or wood glue. PUT THE GLUE IN THE HOLE, not on the inserts; unless you like a mess. Don’t get glue on the ground wire.

 

[bholder]

Slight problem - that bridge post on the treble side near the controls also forms the bridge ground connection - when you pull it all the way out you should see the grounding wire at the bottom of the hole - you need to use conductive glue at the bottom of the post / hole where the wire is (or you'll lose bridge grounding and get noise).

 

[Matt Liebenau]

Yes. Forgot about the ground. I don't know what glue is conductive but you should be able to spread the glue around the post hole leaving the wire area clear then spread the wire outand up before you put the insert in. Maybe check continuity before the glue sets.

 

[MynameisMe]

Thank you all for the help. h finally got a chance to glue it back in place and everything worked out fine. I use some super glue I used a small amount I didn't affect the ground wire and everything works fine. This thing is a thumper with flatwounds on it!

 

[s_wood]

I just repaired this problem myself. I used Titebond glue, which is pretty close to industry standard for luthiers. I wouldn't use Superglue, because when you reinsert the bridge inserts some glue is likely to squirt out. If it's Titebond, you will have a few minutes to remove it but if it's Superglue it will bond to to the finish almost instantly and you will be screwed. No pun intended.

 

[96tbird]

If you’re using super glue and it gushes out you’ve used about 500% more than you should.

super glue only requires a couple of tiny drops down on the wall of the bore. It naturally wicks itself across the wall of the bore leaving no puddle of liquid to come squirting out.

If you put enough in to make a puddle in the bore, you need to stop and get information on how to properly use superglue in general. That stuff isn’t like typical adhesive. But when used properly it works great for this type of job.

 

[s_wood]

I agree that it shouldn’t gush out.I should have worded my post better to say that if it does you are screwed. Not so with Titebond.