67 Headlight Solenoid

I’ve had issues with the headlight doors opening and closing. In the process of replacing hoses, I removed the rebuilt solenoid I installed 10+ years ago and noticed that the bottom had separated from the upper assembly. Wondering a couple things…

  1. Is the only thing inside that a spring? Wondering if anything has falled out of it over time.
  2. I can snap it back together, but should it be glued in some way?

Appreciate the help…
Brian