11-04-14, 09:49 PM
I'm guessing but the face looks like it's made of plasti-coated alloy sheet. A bit of corrosion around the screw hole might cause it to bubble up the coating?
If you still have the gauges on the bench, remove the screw and trying pressing/glueing it back down?
If you still have the gauges on the bench, remove the screw and trying pressing/glueing it back down?