LP Custom Tuner Help needed
On one of my main guitars (LP Custom '57) the tuning pegs (Gold, Grover Brand-not plastic or ivory) for the G and B strings cannot seem to hold tune. When tuning or correcting tune, I always back down and tune up so that all lash is taken from the tuners and always seems to work. As of late, with no immediate cause popping to mind, the two tuners seem to "pop" sharp (sometimes flat, mostly sharp though). Makes a "plink" sound as if the string had something to do with it which can't be. If string tension was the issue it should pull it flat. This occurance is as if some force is pushing the tuner in the + direction. Never took apart tuners before but am a mechanic and know about gears and what not, so is there a type of worm gear or pinion type system in there? Is there some correction that can be done like a shim to allow better mating of the splines to the gear or what? Or is this a simple clean and lube? Driving me f'n nuts. Thanks for your time and thanks to anyone who has an idea. Take care.