Williams Solved Jubilee (Williams, 1973) flipper mechanical problem

[dllyons]

Once again, thanks to all who responded to my original flipper problem and it's now fixed. But ....
Now I have a slight problem with the other flipper.
I'm afraid that in the couple of dozen times I've disassembled/reassembled these flipper assemblies, that I've mechanically boogered something up. The flipper that was always good, is now in need of help. At times it will hang up in the 'flipped' position and doesn't return to rest. What happens is, the coil pulls the rod down so hard that it appears the inertia of the rotating flipper mechanism rotates too far and bends the EOS switch enough to go beyond it and can't return. Also, the phenolic piece that connects the rod to the camshaft gets stuck in a cocked sideways position and therefore is jammed.
I'm wondering if replacing the phenolic piece will help it from allowing it to rotate too far, or what would I need to do ?

Thanks in advance !!

 

[dllyons]

some problems on this website or my browser are keeping me from posting a photo of the Jubilee flipper mechanisms, but if you want a photo, give me an email address to send it, or offer another means. Thanks !

 

[dllyons]

forget it guys !! I seem to have it fixed. I swapped springs and pistons and phenolics and tightened the gap where the phenolic attaches to the pistons, and all seems well !!

Thanks anyway !

 

[pinballdaveh]

changing the phenolic links is a good idea. the holes in the links that the roll pins go thru get elongated over time. this can cause sloppy or weak flipper action, esp. in em machines that the links were never changed. on williams machines you can order a link and plunger assembly, making them easy to change. on gottlieb machines before they went to their style flipper assembly, they had a 4-5 inch link that the roll pins had to be punched down to change the links. these links are harder to change because the flipper assembly needs to be taken apart , and you need a type of bench vise to hammer pins. to test links manually hold the flipper coil plunger and with the other hand move the flipper back and forth. more than 1/2 inch of movement is sloppy. then try to lift the flipper up and down, there should be 1/8 to 1/4 inch of movement. if no movement the flipper arm is up too high, this a common flipper sticking problem. adjust this with the flipper arm set screws. also change those metal flipper coil sleeves if you can, (some are stuborn to get out) with new plastic sleeves.