Brazilian Dodge Dart 76 (similar to 69 usa)

I've opened the gas tank cap to know how it works (or how to change lock key mechanism)

first I removed screws .. and some parts pulled out.. don't worry.. easy to reinstall (at least I know it now)

Locking key mechnis has 2 pins on its bottom... to remove it I inserted a tiny screw driver on that fend... and I keep removing loking plates... photo 3 show the moment I inserted the screw drive on the front end of gas cap...

Figure 4 shows how mechnis works.. the when you turn the key, the 2 pins push that mecanis against the coils.. to put everything in place just put pieces together, put a cover as show in figure 5 (figure 5 just shows the cover)... while I got the 2 pieces togeter (front with key mechanis and back with lock mecanism) I moved the key to put it on the right place.

can wait to do some serious jobs on my car...