I tried the orbital sander trick, and after about 1 min of vibrating, the key turned!. I applied the vibes from directly below the ign lock using a short piece of wood in between the sander pad (held vertically) and the ign lock body. The vertical vibes must have rattled everything back into place one more time. This trick helped a bundle!

I pulled the plastic tumbler cover off that has the 0 I II key positions. Then I removed a snap ring that collered the part that the key fits into. See my attached pic. The red arrow shows where the snap ring was located. From here I have no idea how the tumbler comes out. I did a search on tumbler removal, and there is lots of stuff about inserting a large paperclip into a hole and then withdrawing the tumbler from the lock. I don't see any way that that would work here, as you can see there are no 2mm dia holes to be seen on my pic.

Any ideas about how to get this 1979 W123 tumbler out? Vehicle chassis # is 119208.

Thanks

Gary

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