240Z Door Locks Home › Forums › Member Chat › Tech Chat › 240Z Door Locks This topic contains 0 replies, has 1 voice, and was last updated by Jay Biddle 1 year, 8 months ago. Author Posts 09/03/2016 at 7:52 am #3726 Jay Biddle 1972 240z Door Locks The key cylinders are fine. Problem: Doors will not lock. I have backed out the door lock mount screws while the door lock is in the closed position: no joy Do I need to take the door apart to solve this? Jay Biddle Arvada Author Posts You must be logged in to reply to this topic.