I have been beating my head against the wall for pretty much the whole time I have been in the hobby for two issues related to drop targets of Bally and Stern early solid state games.
1. The bricking issue. This is when a hard straight on shot to the target doesn't drop. like hitting a brick wall.
2. Upon reset, one or more drop targets fall down.
I know there are various threads on these topics, but it seems there is no sure fire way to eliminate these two issues for good.
My current issue is Flight 2000. The spinner drop targets on the right are dropping upon reset what I have tried:
1. tighter springs
2. shaving a couple MMs of the drop target off to increase the lip that rests on the target housing when up.
3. putting a tighter rubber behind the targets to make sure there is nothing impeding the targets from their up travel on reset.
Here are some things I noticed when tearing them apart:
1. all of the metal arms that attach to the bottom of the drops and run in the tracks that activate the switches on the mech have been beaten in a bit.
2. the metal plate that runs along the bottom of the targets and is the plate that pushes upwards and resets the targets has grooves worn into it from hitting the arms attached to the targets over the years.
Here is my question:
Do you think the issue in this case would be that those worn parts are not allowing the targets to travel quite high enough on some resets, thus they drop immediately? Just want to see if that makes sense to others before I tear these things apart again and try new parts there.
When I get these licked, we will move onto the 1-5 countdown drops as they brick and drop on reset.