FSM Procedure 72-240: Well the lock / tumbler assembly is very easy to get out of the door: on the back edge of the door, remove cover over little hole, insert 3mm hex and turn out (CCW) hex screw four turns. Insert key, turn to unlock (CW) direction, push lock / tumbler toward rear of car and pull out. Easy peasy, takes me longer to get the tools out than to pop that lock / tumbler out.

Washed it out well with brake cleaner, then with Houdini Lock Lube, no change. Lots of black juice ran out, I kept going until it was fairly clear, but nope.

It looks like there is a pin at the end of the assembly that can be removed, which then allows a piece and a spring and then a cir-clip to come off, and then just maybe the tumbler will come out of its housing. There are two more pins inserted into blind holes, I guess I'd have to grind the housing off on the blind side to be able to drive those out, but I'm not sure what that would gain me unless my first guess about removing the tumbler is wrong.

There is one white wire, must be for the alarm system or door lock system, which is attached to the lock / tumbler, and I don't see how to easily remove it. Given it can only send one signal (ground or not ground) I'm thinking it must be for the alarm, as the central locking system would require two signals, lock or unlock.

__________________
Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC