Remove Rusted Auto Door Hinge Pin

Step 3 place the hinge in a container.
Remove rusted auto door hinge pin. Continue to tap it up gradually increasing the force until the pin is finally lodged upwards. Remove as much rust as possible but expect rust to remain near the edges and around the screw holes. Tap the bottom of the hinge pin with a hammer and screwdriver to pop up the pin. Scrub the door hinge with steel wool.
However things can get tricky if the hinges or hinge pins appear to be stuck. If the hinge pin continues to resist easy removal a few squirts of household lubricant will likely help ease it out. Taking a hammer and your nail punch gently ram the pin upwards. You will need a socket and ratchet with an extension.
Spray a silicone lubricating spray over the moving parts of the hinge as well as into the top part of the hinge around the pin. Also spray it over all the moving parts of the door hinge plate including its surrounding area. Whether they have been painted over with layers of paint or they have rusted beyond saving not all hope is lost. The best way to remove door hinge pin with a bottom cap.
The best way to remove door hinge pin with a bottom cap. Remove the bolts securing the door hinge to the body. The photo indicates the hinge pin is severely worn because the center part of the hinge is not aligned with the pin. You can close the door to lighten the weight on the hinge.
Close the door to take some of the weight off the hinge. A swivel or universal socket with a rubber band or piece of tape wrapped around the pivot is ideal for this. Cut away at any paint layers over the top of the hinge pin by using a sharp utility knife. Then center the parts drive the pin out with a flat punch.
You should start by trying the simplest methods of removal before moving on to extreme measures. The rubber band or tape stiffens the pivot and allows you to place the socket on the bolt head more easily. Spray the hinge pin with silicone lubricant. All you need to do is pull the hinge pin and lift the door off its hinges.
Soak it with 50 50 acetone and atf with and without heat for a day or more. Put the flat end of the nail against the pin and tap it up with the hammer. Force the pin up from the door hinge.