The Stovebolt Site Forums The Shop Area Paint and Body Shop Doors Passenger Side Lock Problems, '49

I volunteered to help get a friend's 1949 Pickup passenger door to have a functioning lock...

A forum member was able to supply me with a functioning lock and key. The key lock that was supplied seems to fit into the latch mechanism in the door just fine.

The disappointing thing is that when I installed the replacement key lock, it wouldn't turn the mechanism to lock the door.

I have never dealt with this type of lock before, so I am coming here for advice.

I assume that one would normally push the inside door handle forward to lock the door. It will not go that way. When one pulls the handle aft, the door unlocks. I reached into the door and sprayed the components with PB Blaster and worked them a bit, later sprayed them with lithium spray (also through the access hole in the door).

I have attached a number of photographs to show what I am dealing with. I don't know all the proper names of the parts, but I hope that the titles of the pictures will assist in explaining what I have seen.

My impression is that there is something in the door latching mechanism that is not functioning properly and is keeping the locking components from moving as they should.

This may or may not indicate the central problem, but when I manually move the rotating part on the door that engages with the plate on the door post, it makes some terrible scraping noises and takes real effort to move. I lubed it and it moved a very small amount better, but still resists and complains.

When I volunteered to do this favor, I foolishly thought it would be simple!

Suggestions?

Thanks!