TRIPPFONTAINE said:
take 2. I'm looking to get at the back of my ignition to resolder some loose wiring. Can't see how to pull apart the ignition lock barrel.
Tripper, I am not completely sure what you are asking, but I have an idea. There is a small grub screw on the side of the barrel of the switch cylinder assembly. Locating it is the hard part . As I recall, it is on the side of the cylinder and it extends just slightly beyond the length of the cylinder farthest away from the wiring. I do not have a picture or a switch handy otherwise I would post a picture. I believe the screw is pictured in the Blue shop manual (steering section?). I wouldn't be surprised to find pictures in similar manuals and even for different vehicles e.g., 02, E24, E12. This may be more confusing, but if you picture a can of fosters where the wires attach at the bottom of the can. On the other end where you pop the lid on the side - just above the rim should be a tiny lip with the lock screw.
You may be right about using an allen/hex wrench, but I seem to recall using a jeweler's flat head screwdriver on mine.
Sorry I cannot be more articulate at this time since I am going on memory from 15+ years ago.
Good hunting!