Start at the bottom so that the door can stay hanging off at least by one hinge.
How to remove rusted door hinges.
Step 2 place the center punch in the middle of the screw on the door and strike it with the hammer.
In that case i would definitely make a bigger batch all at once just keep in mind the ratio of 1 tablespoon of baking soda to 1 cup of vinegar.
Open the door and position yourself to access the lowest hinge in the door.
Bring the heat up to a low simmer.
It is strong enough to remove the rust without further damaging the metal.
Vinegar and a steel wool pad or naval jelly follow directions will remove the rust.
If you re not in that situation then just grab a big bowl and put all of your rusted items in at one time.
Remove the bolts securing the door hinge to the body.
Fill a stainless steel saucepan with two or three cups of water and enough baking powder to cover the bottom of the pan.
Place the hinge in a container.
Fill the container with basic cola such as pepsi coca cola or a generic substitute.
Next i placed the rusted hinges and screws into the baggies and sealed them up.
A swivel or universal socket with a rubber band or piece of tape wrapped around the pivot is ideal for this.
Mask around the hinge and use a paint or sealer like rustoleum.
The rubber band or tape stiffens the pivot and allows you to place the socket on the bolt head more easily.
Sprinkle salt over the rusted area so that it is thoroughly coated and then juice a lime over the top.
Use as much juice as you can get and allow the mixture to set for 2 3 hours before scrubbing off.
Immerse the entire hinge under the water without stirring up the baking soda.
But it is important to seal the metal away from moister as soon as you can.
Carbonated beverages contain phosphoric and carbonic acids which remove rust via etching.