I had broken springs on my door hinges as well. You need to remove the door hinge to rehab the pivot pin and replace the spring which means removing the doors. The spring goes on the top side of the top hinge. You need to remove the pivot pin to install the spring so it is a good opportunity to rehab the pivot. Its not hard but it can be a fair amount of effort to remove the door, get the pivot pin out, etc. With the srping in place the door will stay open (no 4x4 required).
