Replace your Zippo flint with flint from a dead BIC

Step 2 Taking apart your dead BIC

first remove the metal sheild that surrounds where the flame would be.
Also, remove the saftey if you have one.
you can do both of these steps with a pair of needle nose pliers.
just grab, twist, and pull. both should come off fairly easily.
next, put the lighter in a clear plastic bag.
the lighter is spring loaded and if you don't take it apart in a clear plastic bag,
the parts wil fly out and be lost forever.
through the bag, grab the wheel with a pair of pliers.
carefully pull it to on side. after one side of the rod holding it in pops out,
it should come out easily. as soon as the wheel is removed,
the flint and spring will shoot out. the spring is about and inch to an inch and half long. the flint is about 3/32" in diameter.