This may be a dumb question about coin door locks, or maybe a question about dumb coin door locks.

I like to keep a key with a fob in the coin door lock of each of my games, unless there will be a lot of people around, at which time I throw the keys into a locked box. Having the key in the game makes it really easy to get inside if I need to, and in my house, anything that keeps things small, important things like keys from getting lost is worth the effort.

Thing is, two of my games have newer locks on the coin doors. Both of them lock in the horizontal position, and they turn so easily that they unlock during the course of normal game play and the doors swing open. At the very least, this is a big distraction, and really no fun at all.

The locks are the standard double-bitted ones that Marco, Pinball Life and everyone else sells. They appear to be identical to the one that came in my AFMRLE. So:

Is there a way to increase the "friction" of the locks, so that they don't "flop" open so easily?

I tried tightening the screw that holds the lock into the lock-bar mechanism, but all that did was jam it up so that it didn't turn at all.

I know I can avoid the problem by keeping the keys somewhere else, but I am more interested in actually solving it. It works for half of my current lineup, I'd really like to bring the other half into alignment.

Any help would be greatly appreciated, thanks in advance!

Thanks for the help!

I'm gonna try this first:

Then this:

And finally this:

I'll let y'all know how it works out.

Aaaaaaand, we have a winner!

Getting into the habit of sliding the key out just far enough to free the first pin in the chamber is a sufficiently small change that I think it will work out just fine.

Thanks!