Hi UG people

I have a 3 year old Tangelwood TW40 which I know and love. I know that it is not unusual for the tuning pegs to be a little loose when the strings are off- i.e. you can wiggle them between your fingers.

My D string tuning peg is now worryingly loose though - I am in the middle of putting new strings on it, and the small cap where the peg meets the head of the guitar is so loose that it falls out if turned upside down. I put a tiny piece of blu tac on this cap temporarly to stop this happening.

This all means that as you tighten the sting, the peg itself is dragged towards the body of the guitar, pulling the cap with it, and leaving a gap where you can see the hole drilled in the head of the guitar.

It just seems like something's wrong, and I have zero experience fixing this sort of thing. I don't want to tighten the sting and risk damaging the guitaer. Below are pictures. If anyone has any idea what's going on, I would really appreciat it.

Not thing's wrong. Those are press fit bushings. Just push them back down into the headstock and tune the string up. Some tuners have washers and screw- in bushings on top. A paper shim will tighten it up a bit in the hole.
Don't cross the string windings over each other on the post for best tuning stability.