Insert the cylinder back into the housing, aligning the cams at the inner end, then rotate the cylinder back to RUN so it can be reinstalled in the column. Push the catch pin up, insert the assembly, then turn the key to OFF to force the catch pin down. Check all functions.

If it still doesn't work right, you wasted a few minutes & a few cents worth of superglue & brake cleaner. Buy a new one & have a locksmith cut the doors onto the new ignition key, or buy a kit cylinder & build it to fit your original key.

New lock cylinder set ~$70~100 (3): with black keys (2), black ignition cylinder, stainless door cylinders (2)

Ford (1L3Z-11582-A) improved lock cylinder kit MotorCraft SW-6383 ~$60 (not the A/C clutch pressure switch with the same number)
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StratTec is the OEM for the Ford kit, and its number is 707624 for about half the price. The blank key is 597638 for ~$2.50~6 each.

See also:
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Owner caption September 2014 · Photo 0 of 5000