Having issues with the upper flipper on my newly acquired Stern Star Trek, so decided to rebuild the mech.
As someone had previously done a flipper rebuild allegedly, but only actually replaced the coil stops.
Got the parts and went to change the mech.
To my surprise when I went to remove the new coil stop I found a correct sized screw and a under sized screw, crammed into the playfield!!

Removed the stop and found half the coil sleeve missing!
Flipper rebuild my ****!!
Anyway, looks like the original screw had been sheared in the flipper plate, as the correct size screw won't fit, whereas if it had stripped the threads I'd expect the original stud to pass through the hole left.
So what I'm after is knowing if I can attempt to tap out the threads in the flipper plate, or if I need to buy new. If tapping is an option, what size tap do I need and consequently what size machine screws are the correct for the flipper plate.



As someone had previously done a flipper rebuild allegedly, but only actually replaced the coil stops.
Got the parts and went to change the mech.
To my surprise when I went to remove the new coil stop I found a correct sized screw and a under sized screw, crammed into the playfield!!


Removed the stop and found half the coil sleeve missing!
Flipper rebuild my ****!!
Anyway, looks like the original screw had been sheared in the flipper plate, as the correct size screw won't fit, whereas if it had stripped the threads I'd expect the original stud to pass through the hole left.
So what I'm after is knowing if I can attempt to tap out the threads in the flipper plate, or if I need to buy new. If tapping is an option, what size tap do I need and consequently what size machine screws are the correct for the flipper plate.


