I had to drill mine. I f'ed one of the doors up in this area and will need a bit of hammer and dolly to bring it back. Thread lightly here. The metal is thin but the screws are rock hard, It took several bits to get mine out.

 

I used to have an impact screwdriver you hit with a hammer that would be perfect.

 

I use a screwdriver, one that can take a hammering, and whack it on the end with a hammer while trying to turn the screw. Works pretty darn well as an impact.
I do have a hammer impact screwdriver, but snapped most of the decent sized bits. They don't seem to make bits as well as they make an actual screwdriver.

 

I use an impact screwdriver also, but heat and penetrant will help it work better. I try to reapply the heat and penetrant a few times before using the impact. Might give it a better chance to work.

 

Beware though, painted surfaces don't like getting heated up, even from the back side!

 

Don't use a torch!!!! I use a soldering iron by putting the tip directly on the screw or bolt head. Works great!

 

By torch I mean a plumbing torch, not for long either. I have some common sense. lol. The soldering iron... that little bit of heat seems like it would just disperse faster than it could be of any significance in a screw that is screwed into a latch into a door that is all metal. Worth a shot I suppose. I'm just going to keep on with the PB blaster for a couple more days.

I never used the impact screwdriver when I worked for NCR, I always wondered about it breaking. I don't like beating on things that are tempered and could shatter (like the tip of the screwdriver). I already popped one eye, and I don't want to have that happen again. If I can't get it out, no big deal, I'll leave it in there and just remove all of the linkages and stuff.

I may be working out a trade for some parts for a pair of power door locks and windows here too, so somewhat perfect timing on that note.

 

You haven't seen my soldering iron! It's got a tip that weighs a little over 1 lb. alone. An old one from WWII era that I inherited from my father. It can actually lay down lead on body sheetmetal.
I have used my Weller gun for smaller jobs where I needed more precise heat, as it heats up faster than the old iron does.

 

Umm Val. Thats called a welder. LOL

 

That iron is so old it's still got a old cloth covered cord on it!