It pops out on its own after I turn it off and remove the key.
How a popout is supposed to work is:
1) Popout in the IN position and car off
2) Insert key, turn and now it's in the OUT position(contact is open)
3) Car may be started
4) Key may be removed while driving the car
5) Push to IN position to stop car(contact is closed and coil is shorted out)
Does your popout say Electrolox or have a B surrounded by a diamond on the back? If so it may be an original.
Does it say "Made in Spain" or have a key with a number from 0-9 on it? If so a reproduction. There are other reproductions as well. All look like an original but the other reproductions don't have Electrolox or have a B surrounded by a diamond on the back.
IMHO the reproductions of the 30/31 popouts are every good as the originals. Some were replacements from a long time ago and others are from the 70s. I've seen the inside of most of the reproductions. Both originals and reproductions have a flimsy copper contact inside.
The original 30/31 design is not as good as the 28/29 design. The 28/29 have not been reproduced.
I can also vouch for Dick. I've been to his Houston warehouse and he came to my house in Beaumont one time. He up and retired and moved to South Dakota though! Kind of a reverse Sunbelt migration. Dick can restore an original. He doesn't fool with reproductions(he sold me a bunch of "Made in Spain" parts!
Here is an original box from a very old repro popout: