I had the same (or very similar) problem with my 81 300TD. Basically, you
have to pull very hard on the bottom until the two sides of the clip are
INSIDE the diameter of the circle that drops into the hole in the hood.
Mine came properly configured, and I PROMPTLY messed it up by fiddling
with it. After about 20 minutes of the exercise you describe, I was
finally able to get enough downward pressure on the spring to "cock the
I had to hold the medallion in one hand, the star in the other, and had my
daughter compress the two clips with a pair of channelocks opened wide
enough to get around the pair. My hands were sore, buI managed to get it
done without damaging the ornament.
After that, the medallion will only go into the hood one way, I believe,
and after that you pull down on the spring and the two clips pop back out
and locks it into place.
Good luck, hope this helps!