Remove key lock on Passenger door? 1948 b1b

[Dodging Work]

Hard to see in there. Seems to be a bracket on the inside of the door. I can't tell if it rotates, or slides down. Sorry for the poor pictures, the yellow spot is where I tried to use a piece of wood to no avail

[Young Ed]

It doesn't do either. It holds a set screw that you access from the door edge. Very hard to get apart. Also you should post on the truck side - you'll get a better chance of a reply. 

[ggdad1951]

There is a hole on the door side that you can peek into and see a TINY flat head screw the holds the lock in place.....99.999% of those never back out.   Do what you can to try and get it out.   Here is what I did to deal with the issue after busting the keeper an dscrew off:

 

 

[Dodging Work]

I posted earlier and the replies were to drill out the screw to remove. I started today, but not sure of exactly what to do. How far do I drill? Then what? IAs I drilled, it looks like I got into brass. Is this normal? I want to save the key lock mechanism. I looked up the new part someone suggested so I might have an idea, and I understand how that would retain the lock. However, it doesn't help explain what I'm getting into. Want to go forward without damaging or ruining any more than I need to. Any help, diagrams or photos would be greatly appreciated. 

[bkahler]

If you're drilling into brass I believe you are drilling into the lock itself.  If you look at the pictures below, you'll see the lock has brass in it.  I do not believe there is any brass in the rest of the framework or the screw that retains the lock.  In the below you can see a little round nub sticking out the side of the lock retainer cylinder.  That nub is threaded inside and that's what the screw is inserted through to retain the lock. 

 

By the way, this is for a B3B, which I assume would be the same as your B1B.

 

 

 

Here's a better view of the brass portion of the lock.  The screw presses into the V notch in the lock.  I think you  need to stop drilling and move up to the next sized drill bit to drill out more of the screw.  That is of course, you started with a small drill bit first.

 

[Dodging Work]

Your pictures helped greatly!! Exactly what I needed to see. Thanks

[ggdad1951]

Yah you got into the lock body itself.   Depending on the drill bit tip type, you might have gotten enough of the set screw out to wedge the lock out.

[Robert Harrison]

22 hours ago, Dodging Work said:

I posted earlier and the replies were to drill out the screw to remove. I started today, but not sure of exactly what to do. How far do I drill? Then what? IAs I drilled, it looks like I got into brass. Is this normal? I want to save the key lock mechanism. I looked up the new part someone suggested so I might have an idea, and I understand how that would retain the lock. However, it doesn't help explain what I'm getting into. Want to go forward without damaging or ruining any more than I need to. Any help, diagrams or photos would be greatly appreciated. 

My familiarity is with the 39-47's so I dont know if I will be much help.  With my truck the devise retaining the lock assembly I mean the part you put the key in is retained by a set screw you access in the end of the door.  The access hole being probably no more than 3/8 of an inch.  If you have a hole that is at the same height as the door lock at the end of the door this could be what you need to remove this set screw which uses a standard flat blade screw driver to remove the actual door lock.  Looking at the lock from the side as if removed you have a cylinder mechanism with a long rectangular tonge on the end this tonge is retained by the set screw in the end of the door.  The set screw basically screws into a holder in the door against the tonge.   So if you are trying to remove the keyed section of the lock you have to have the door open so you can get to the set screw.  Try looking for a hole with a flashlight in the end of the door.  Im not quite sure from your description what you are doing?  A common way for locks in general is to drill out the end of the lock where the key goes in this destroy the tumbers little teeth that follow the key cut and allows the cylinder to turn.  But that is not going to remove the lock if you have the set screw I am talking about.  It will destroy the current lock and you still need to get it out of the door.  So I am thinking you most likely are drilling out the key portion maybe from some online stuff you have found about locks on the net  Lock cylinders often are made of brass so that is why I am thinking that is why you see brass.  The tounge could be brass most likely steel so if you are drilling out the set screw you will somehow have to retap this but you could be drilling into the toung if it is breas.  If that is what you are doing you can roll down the window and you might be able to see if the toung is brass.  If it is that is the brass you are seeing and you should be able to stop drilling.  If your locking mechanism is similar to the 39-47 models you are not going to repair or replace teh lock by drilling where the key is.  Spray PB blaster the set screw from anywhere you can upper window opening using the little straw that comes with the can or through the hole to help get it out if you have not drilled it.  Try initially tightening it a bit at first spray again then try to back and forth twist the set screw occasionally spray it be patient it would be a pain to fix the door where it is taped in place. lots  of patience.  Replace the set screw with a modern hex type as the flat blade set screw is likely to strip.  Then pull the lock assembly straight out the door.  Its going to take some wiggeling PB blaster on the tonge etc.  Dont pry against  the door skin You will just have to work it out carefully it will be a little stuck.  hope this helps

[bkahler]

On 2/17/2025 at 5:27 AM, ggdad1951 said:

There is a hole on the door side that you can peek into and see a TINY flat head screw the holds the lock in place.....99.999% of those never back out.   

 

 

This is the first time in my life I'm in the .001% of anything 🤣

The screw holding my lock in place came out without any issue.  I did replace it with an Allen head set screw, not sure if that is better idea, but its done and I'm not changing it

 

[Los_Control]

My thoughts on removing the cylinder ..... that is going to be a pita and saving it for another day ... watching this thread because that day is getting closer and closer.

Glad to see there is some hope it might come out easy @bkahler  

I need to take it in and get a key made for it.

[Robert Harrison]

if you drill out the set screw and I would do anything possible to get it out.  Now that the Threads have been drilled out for the screw you will have to figure out how to anchor the replacement lock.  Hopefully you could tap a larger set screw through the hole in the door?  .  The other thing is you should have a hole in the end of the tong it is for installing a wire probably hard wire to feed through the door and lock mechanism to aid feeding the tong through the lock mechanism.   

[ggdad1951]

not to beat my own drum...this worked out well and removes the issue

 

 

[Dodging Work]

When I pulled the lock assembly out, the tumblers and springs fell out as well. Is this normal?

[bkahler]

14 minutes ago, Dodging Work said:

When I pulled the lock assembly out, the tumblers and springs fell out as well. Is this normal?

 

No.  How far into the brass did you end up drilling?

[ggdad1951]

Did the little keeper slide (that holds it all in) stick in the door bit?  If I remember right that's how these are designed....might be wrong.