A fairly unplayable 1959 Levin LM-26 before I reset the neck
I’ve been very lucky and managed to get my hands on a couple of really nice Levin and Goya guitars over the last year. I would probably have thought twice about getting any random 50 years old acoustic since the action is normally a bit of an issue but with Levin it’s quite easy to reset the neck. They have been using a bolt-on neck system since the 1950’s which makes the job pretty manageable.
Remove the two bolts that attach the heel with the neck block, you can see them if you look inside. A normal Philips no 2 screwdriver fits if you don’t have a square Allen key. The heel is normally not glued in so you will feel it loose as soon as you remove the bolts. If not, apply a bit of pressure upwards to loosen the heel. Now you will be able to fit a sanding strip under the heel and can start to sand it down and that way change the neck angle and lower the action. Apply a bit of pressure on the neck and just pull, it might take 40-60 pulls on each side so so be patient. Check the neck angle with a straight edge once in a while so you don’t take it too far. As long as the straight edge doesn’t go over the bridge it should be fine. I have done the sanding strip trick on two guitars so far, my Goya T-18 and a Goya 163. On my Levin LM-26 I felt it was better to remove the whole neck so that made the sanding process even easier.
Update: January 27, 2014 I needed to sand down the heel a bit further on my Goya Model 163 and realised that the fretboard started to come loose. It looked and felt just like the bridge, like the glue had dried up and started to crack and fall apart. I tried a new trick that I learned on Youtube, to heat up the spatula instead of heating the neck, like a did on my Levin LM-26. My God, this was so easy and quick, I think it took me 7 min to remove the neck. When I had sanded down the heel a bit further I glued the neck back with some fish glue and a couple of clamps.